Dissertations / Theses on the topic 'Lighting'
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Daré, Ana Cristina Lott. "Lighting Design." Doctoral thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2014. http://hdl.handle.net/10400.5/11748.
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Sabourin, Nicole Tan. "The effects of connected lighting on lighting controls and design." Kansas State University, 2017. http://hdl.handle.net/2097/35481.
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Master of ScienceDepartment of Architectural Engineering and Construction Science
Fred L. Hasler
The Internet of Things (IoT) is rapidly growing and is starting to be incorporated into commercial buildings. One of the ways that the IoT is being used in buildings is connected lighting, also referred to as smart lighting. Connected lighting allows for communication between the lighting system, people, the environment, and other devices. This paper will focus on connected lighting and its effect on lighting controls and design. The IoT is expected to see substantial growth in the next few years and the growth of connected devices will have a huge impact on the lighting industry as connected lighting systems will be installed in more commercial buildings. The shift to solid state lighting (SSL) in recent years has brought the transition from conventional lighting controls to connected lighting controls. For this shift to be successful, issues with interoperability, security and reliability will need to be overcome. Connected lighting systems on the market are using both wired and wireless technologies. Power over Ethernet (PoE) and wireless technologies such as ZigBee and Bluetooth Smart are currently being incorporated into connected lighting systems. The introduction of these technologies is changing the way that lighting control systems are designed and installed. Products such as fixture-integrated sensors and wireless devices are also being used in connected lighting systems. These products, along with the wired and wireless technologies, are changing lighting control system configurations. Lighting design will also be affected by connected lighting systems. New features including color-tunability and indoor positioning will be used to enhance the lighting system and improve occupant health. Also, energy code compliance will be easier since connected lighting controls will be mostly software-based and can be reprogrammed. Connected lighting systems will be integrated into other building systems such as heating, ventilating, and air conditioning systems or security systems and will also be used in a variety of applications. Connected lighting systems will greatly affect both lighting controls and design of lighting control systems. This paper introduces connected lighting and is intended for those who are not familiar with its design, applications, and implementation.
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Wanvik, Per Ole. "Road Lighting and Traffic Safety : Do we need Road Lighting?" Doctoral thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for bygg, anlegg og transport, 2009. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-5396.
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Road lighting is widely recognised as an efficient traffic safety measure. However, we know too little about the effect of road lighting on accidents in a given situation and we do not know what kind of lighting that is optimal for the situation. Society today has a demand for energy savings, locally and globally, and we should not use more energy for road lighting than is necessary. In the field of road lighting the demand for energy savings is accompanied by a fast development of techniques and equipment that give great opportunities for energy savings. The opportunity already exists to adapt the lighting to the actual road, traffic and weather situation. It is a problem, however, that we do not know what lighting quantity and quality which gives the best benefit – cost ratio. The objective of this thesis is to contribute to more knowledge about the relationship between road lighting and traffic safety and thus make a basis for benefit – cost calculations (including environmental costs). The thesis is based on four studies about the safety effect of road lighting, reported in four papers. The first is a literature study, the second is a Norwegian before-and-after study, the third is a cross-section study of Dutch accidents and the fourth is a study of Dutch motorway accidents. The thesis also contains three appendices presenting some more details from the studies than were shown in the papers. The content of the four papers are presented and discussed as a whole in a (fairly comprehensive) introductory part consisting of 10 chapters, where conclusions about the safety effect are discussed and summarised. The thesis in addition discusses the benefit – cost ratio of road lighting, but it is not treated in any of the papers. It has been useful to discuss this matter in advance of the discussion of the future role of road lighting. In the literature study (Paper I), the mean effect of road lighting on injury accidents during darkness was found to be -30 %. The mean effect on fatal accidents was -60 %. The mean effect on pedestrian injury accidents was -45 %, and on motorways the mean effect on injury accidents was -50 %. In the Norwegian before-and-after study (Paper II), the estimated effect of road lighting on injury accidents during darkness was -28 %. The estimated effect was larger at high speed limits than at low speed limits. The estimated effect was smaller on roads with AADT (average daily traffic volume) > 8000 vehicles than on roads with AADT < 8000 vehicles. In the cross-section study of accidents on all Dutch roads (Paper III), the mean effect of road lighting on injury accidents during darkness was found to be -50 %, while it was -54 % when only rural roads were considered. The effect on pedestrian, bicycle and moped accidents was larger than the effect on automobile and motorcycle accidents, and the differences were statistically significant. There was no significant difference between the safety effects for different accident types (Rear end collisions, Frontal collisions etc.) and no significant difference between the driver age groups 60 – 74 years and 30 – 39 years. The effect on fatal accidents was found to be slightly larger than the effect on injury accidents. The mean effect on twilight accidents was 2/3 of the effect during darkness. In the study of motorway accidents (Paper IV), the effect on injury accidents during darkness was found to be -49 % on Dutch motorways, while the effect seemed to be much smaller on British and Swedish motorways. On Dutch rural roads and Dutch motorways, the estimated effect of road lighting on accidents during darkness was smaller during adverse weather and road surface conditions than in fine weather and dry surface conditions. The differences were statistically significant. In fog, there was found no effect of road lighting during darkness. However, there were indications on a daylight safety effect during fog, possibly due to guidance from light poles. The results from the studies described in this thesis give a basis for increasing the application of road lighting as a traffic safety measure worldwide. Cost – benefit calculations indicate that road lighting is one of the most efficient road safety measures available. However, the energy consumption related to road lighting is a problem that must be considered. The great challenge is to reduce the energy consumption as much as possible without reducing the safety benefit too much. Future road lighting will probably be of the adaptive type, and it will be essential to know how the safety effect varies according to traffic and weather conditions and how it varies with the road lighting level and the quality of the lighting. The thesis answers some question about the safety effect during different weather conditions. There is, however, too little information about safety effect related to varying road and traffic conditions. A more serious lack of knowledge is that we do not know how the safety effect varies according to the lighting level. It is not possible to balance the energy consumption and the safety effect as long as this relationship is not known.
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Ebbensgaard, Casper Laing. "Rethinking urban lighting : geographies of artificial lighting in everyday life." Thesis, Queen Mary, University of London, 2017. http://qmro.qmul.ac.uk/xmlui/handle/123456789/25816.
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In this thesis I study the role of artificial lighting in the everyday urban life of older residents living in the London Borough of Newham. Newham's light infrastructure is currently undergoing change as the borough's entire 19,000 street lamps are being re-placed with Light Emitting Diodes and as a range of regeneration projects provide public spaces designed with new lighting. By increasing visibility and encouraging everyday activity into the evening, the Council claims that the changes in public light-ing will provide 'eyes on the streets' and encourage 'eyes from the windows' of build-ings, contributing to increasing 'natural surveillance'. The Council's avowal of every-day practices in streets and in homes, has made me question how lighting affects the way older residents move through streets and carry out domestic practices as dark-ness falls. The study explores how light planning, lighting design and everyday, rou-tine practices in the public realm and inside homes co-produce the urban, lit environ-ment. Two major contributions of the thesis lie in the (post)phenomenological ap-proach I develop to study everyday experiences of urban lighting, and the methodo-logical framework I employ to research such practices, which combines mobile and visual methods. I have conducted 11 in-depth interviews with nine different planners and designers, 12 walk-along interviews with 22 residents between 58 and 79 years old, and a collaborative photography project with 14 residents between 68 and 96 years old. As I show how older residents experiences different lighting technologies, layers of light, and different lit spaces in their neighbourhoods, I discuss how urban lighting makes them see, feel and carry out routine practices in particular ways. Based on my findings, I argue that urban lighting shapes what, and how, people see, but how people see depends on how they negotiate changes in lighting. In a range of examples where residents mould the urban, lit environment or respond to lighting in different ways, I show how they play and active part in co-producing ways of seeing. I argue it is crucial that light planners and lighting designers recognise such co-constitutive role of everyday practices in order to ensure better lighting for our future cities.
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Aldrich, Matthew (Matthew Henry). "Experiential lighting : development and validation of perception-based lighting controls." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/95866.
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Thesis: Ph. D., Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2014.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 119-125).
Lighting, and its emergence as a digital and networked medium, represents an ideal platform for conducting research on both sensor and human-derived methods of control. Notably, solid-state lighting makes possible the control of the intensity, spatial, and color attributes of lighting in real-time. This technology provides an excellent opportunity to conduct new experiments designed to study how we perceive, judge, and subsequently control illumination. For example, given the near-infinite variation of possible lighting attributes, how might one design an intuitive control system? Moreover, how can one reconcile the objective nature of sensor-based controls with the subjective impressions of humans? How might this approach guide the design of lighting controls and ultimately guide the design of lighting itself? These questions are asked with the benefit of hindsight. Simple control schemes using sliders, knobs, dials, and motion sensors currently in use fail to anticipate human understanding of the controls and the possible effects that changes in illumination will have upon us. In this work, the problem of how humans interact with this new lighting medium is cast as a human-computer interaction. I describe the design and validation of a natural interface for lighting by abstracting the manifold lighting parameters into a simpler set of controls. Conceptually, this "simpler set" is predicated on the theory that we are capable of discerning the similarities and differences between lighting arrangements (scenes). I hypothesize that this natural ordering (a metric space in a latent multidimensional basis) can be quantitatively extracted and analyzed. First, in a series of controlled experiments, I show how one can derive this mapping and I demonstrate, using empirical evidence, how future sensor networks will eventually emulate our subjective impressions of lighting. Second, using data obtained in a user-study, I quantitatively derive performance estimates of my proposed lighting user interface, and statistically contrast these performance results with those obtained using a traditional interface comprised of sliders and buttons. I demonstrate that my approach enables the user to attain their illumination goals while substantially reducing task-time and fatigue.
by Matthew Henry Aldrich.
Ph. D.
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Gonçalves, Eduardo José dos Foros Santos. "Adaptive lighting design as a holistic approach to public lighting." Doctoral thesis, Universidade de Lisboa. Faculdade de Arquitetura, 2016. http://hdl.handle.net/10400.5/12387.
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Tese de Doutoramento para obtenção do grau de Doutor em Design, apresentada na Universidade de Lisboa - Faculdade de Arquitetura.A iluminação pública alterou profundamente a nossa percepção e uso do espaço urbano nocturno. Compreendida muitas vezes apenas como uma questão técnica em vez de humana, é baseada principalmente no desempenho fotométrico da visão, deixando de fora outras dimensões humanas, como a psicologia da percepção. Actualmente, a iluminação pública está particularmente direccionada para a redução do consumo energético através do uso de novas tecnologias, tal como iluminação adaptativa e fontes de luz LED e o uso de soluções de iluminação standardizados. Neste contexto surge a oportunidade para o desenvolvimento de novas abordagens à iluminação que tirem partido da flexibilidade inerente destes sistemas, melhorando a relação entre o bem-estar do utilizador e o consumo de energia, contribuindo assim para uma prática de design mais sustentável. Com base numa abordagem research through design, foi utilizada uma metodologia mista, de natureza não intervencionista e intervencionista. A partir de uma inicial revisão bibliográfica e da experiência profissional do investigador, considerou-se que adaptabilidade é um importante factor técnico e de design para a melhoria da iluminação pública. Propondo o desenvolvimento de um método orientado para o utilizador, que determine os cenários de iluminação adaptativa para a condição mais adequado e mínima aceitável, considerando uma relação utilizador-espaço específica, com base na percepção de bem-estar do utilizador e a avaliação da qualidade dos cenários configurados. Para apoiar a implementação do método foi desenvolvido um quadro de referência - Continuidade de Luminância Percepcionada como forma de descrever o comportamento da iluminação adaptativa. A informação reunida - objectiva e subjectiva - fornece uma base empírica para que profissionais da iluminação possam criar soluções personalizadas para um contexto físico e humano. Foi formulada a hipótese de investigação que o método proposto, potencia a criação de soluções de iluminação mais ajustadas e flexíveis. Permitindo a adequação de normas suportada em dados objectivos para uma relação utilizador-espaço específica. Dando uma resposta efectiva ao nível do bem-estar do utilizador e da gestão energética, promovendo uma prática de design mais sustentável e melhorando a experiência nocturna. Para testar a hipótese foi executada uma experiência em espaço real como um primeiro caso de estudo na vila de Arraiolos, Portugal. Uma segunda experiência foi realizada com o objectivo de testar a consistência dos dados prévios e confirmar a hipótese primária. Após a análise e validação estatística dos dados recolhidos, foi possível afirmar que a tendência de escolha em ambas as experiências foi muito semelhante, significando que os cenários de iluminação inicialmente considerados como adequados eram reais e significativs, proporcinando elevado nível de apreciação da qualidade da luz. Significa igualmente que existe uma relação entre a configuração da iluminação, distância de visibilidade e a ilusão perceptiva de que um espaço está totalmente iluminado. Mostrou-se ainda que a maioria dos participantes aceitaria iluminação pública adaptativa como prática comum dentro do quadro de referência da Continuidade de Luminância Percepcionada. Com base nos resultados, concluiu-se que o método proposto é uma ferramenta de design válida na concepção de soluções de iluminação pública adaptáveis, confirmando a hipótese primária e secundárias, demonstrando a sua relevância para uma prática de design de iluminação mais sustentável e a melhoria da sustentabilidade do espaço urbano nocturno.
ABSTRACT: Public lighting altered profoundly the way we perceive and use nighttime urban space. It often is understood only as a technical issue rather than a human one, mostly based on photometric visual performance, leaving mostly out other human dimensions such as the psychological perception of light. Currently, public lighting is predominately directed to reducing energy consumption by means of the use of new technologies, such as adaptive lighting and LED light sources and the use of standardized lighting schemes. In this context, there is an opportunity to develop new lighting approaches that take advantage of the inherent flexibility of these systems to improve the relationship between user's well-being and energy management, contributing to a more sustainable design practice. Based on a research-through-design approach, a mixed methodology was used with a non-interventionist and interventionist nature. From literature review and professional experience, we considered that adaptability was an important technological and design factor to improve public lighting. Proposing the development of a user-oriented method that determines adaptive lighting scenarios for the most adequate and minimum acceptable lighting condition, for a specific user-space relationship, based on the user’s perception of well-being and the assessment of the perceived lighting quality of the scenarios. To support the implementation of the method, the Perceived Luminance Continuity framework was developed as a way to describe the adaptive lighting behaviour pattern. The gathered data - objective and subjective - provide an empirical basis for lighting professionals to design customized solutions. We hypothesized that the proposed method, would allow the design of more tailored and flexible lighting solutions. Allowing the adjustment of standards based on objective data for a specific user-space relationship. Promoting a more sustainable design practice that give an effective response to the user’s well-being and energy management, improving the nighttime experience. To test the hypothesis, an outdoor field experiment was conducted as a first case study, in the Village of Arraiolos, Portugal. A second experiment was carried out, aiming to test the consistency of the previous data and confirmation of the primary hypothesis. After analysis and statistical validation of the collected data, we can say that the tendency of choices in both experiments was very similar, meaning that the initial lighting scenarios considered as adequate were real and meaningful, with a high appraisal of lighting quality. It also showed that there was a relationship between the lighting configuration, visibility distance and the perceptual illusion of a fully lit space. Moreover, it shows that the majority of participants would accept adaptive public lighting, as common practice within the Perceived Luminance Continuity framework. Based on the results, we concluded that the proposed method is a valid tool for the design of adaptive public lighting solutions. Confirming the primary and secondary hypothesis, showing its relevance in the development of a more sustainable lighting design practice and improving the sustainability of the urban nighttime space.
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Grubb, Armelle. "Lighting Student’s Well-being : Social lighting, social sustainability, subjectivewell-being." Thesis, Linnéuniversitetet, Institutionen för design (DE), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-74815.
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This thesis is an exploration of how artificial lights are used to create atmospheres in a space, andhow they enhance an individual’s well-being. The focus here is placed on students in Sweden,specifically those who live in one-room apartments. Students typically do not invest much intheir lights yet being in Scandinavia, artificial lighting is used to compensate for the lack ofdaylight hours. As such, the lights they have will impact how they go about their day.A light is designed using product design methods to respond to the research question: “to whatextent can a versatile light source alter the atmosphere of a student’s space to enhance their wellbeing?”As the research is situated in Sweden, aspects of the Scandinavian lighting culture will beexamined and implemented in the design. The student’s well-being will be assessed through thetheory of subjective well-being, specifically how it can be enhanced through perceived control.The light design also aims to be socially sustainable, focusing on how individuals’ well-being canbe improved through lighting. The design also attempts to tackle inequalities by showing it canbe made of cheap and accessible materials, as well as being professionally manufactured. Thecheaper version is to ensure students with lower incomes can access the same quality of light asothers, where the light will create a similar atmosphere. Finally, the concept of social lighting isdefined in the context of this thesis. It concentrates on designing the light based on interviewswith students and emphasising the relationship between a student and their apartment.Through interviews and photos, a design brief was formed to understand what type of lightstudents use in their apartment and what they were looking for. After a series of iterations, afinal design was obtained and created. One version was made professionally in metal by BelidLighting. Another was made out of thick card and paper clips, materials easily accessible tostudents. The models were tested by students in their home for two nights, after which aninterview took place to obtain impressions and feedback on the design.It was concluded that a versatile light source altered the atmosphere of a student space toenhance their well-being to a certain extent. This was due to people’s existing relationship withlights, where they don’t generally interact beyond switching them on and off. Nonetheless,participants enjoyed making their own lamp, and found the lamp design quite unique. Thishelped maintain their subjective well-being.
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Strebel, Martin, and Philip Sveningsson. "Tylö : Sauna Lighting." Thesis, Halmstad University, School of Business and Engineering (SET), 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-834.
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Tylö AB is the leading manufactor of sauna cabins in Europe, but there is a lack
of a sauna lightning produced by Tylö. The project of developing a new sauna
lightning series was assigned two students at the developmentengineering
program at Halmstad University. The main problem with lightning in the sauna
is the heat and security aspect. The selection fell on LED technology as the
lightning source, thanks to its small measures and low heat emission.
The work of constructing of a lightning armature which the capability of cooling
down the LED lightning was carried out during autumn ‐06 and spring ‐07. The
project resulted in a brand new concept of sauna lightning, the usage of LED
technology in the sauna have opened up new possibilities for designed sauna
lightning. The lightning concept replaces an ordinary wooden panel in the
sealing, the only visible part is the glass cover. By using a smart deign combined
with extrusion of aluminum a profile only 12 millimeters thick that`s suitable
for mounting in the sauna sealing was constructed. The construction
guarantees an efficient cooling and sufficient lightning.
The project resulted in a patented and design patented product. The project
has further more resulted in a employment at Tylö AB for the project members.
The purpose with the employment is to take the product from a concept state
to a market introduction in end of 2007.
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Ha, Hai Nam. "Automatic lighting design." Thesis, University of Newcastle Upon Tyne, 2008. http://hdl.handle.net/10443/103.
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A significant problem in the automatic design of 3D graphics is the configuration of the lighting for a scene. The number of lights included, and the properties of these lights, has an enormous impact on what a viewer can judge about the content (the objects), properties (the geometric characteristics and spatial relations of the objects) and other aesthetic qualities of a scene. The traditional approach to lighting design for image synthesis is based on manual design methods, whereby users interactively specify values of lighting parameters, render the scene, and modify the lighting parameters until the desired visual properties of the scene are achieved. Non-expert users encounter a number of difficulties in selecting the appropriate lighting parameters, as the process requires both a subtle technical and aesthetic understanding of lighting in computer graphics. In this thesis, perceptual aspects such as contrast and the non-linear characteristics of our perceptual response to colour are combined with practical studio lighting techniques and a novel treatment of shadows, to yield an extension to existing perceptual approaches to lighting design. This so-called ideal lighting approach optimises the lighting configuration for a scene with respect to a set of absolute perceptual metrics. An intuitive approach to lighting design, lighting-by-example, is also proposed and extensively explored in forms that exploit both the perception-based lighting framework and a new wavelet formulation. User studies are conducted both to configure the perception-based lighting objective function and to evaluate the performance of the proposed lighting design approaches. Finally, we develop an interactive interface for the lighting design process that incorporates both the ideal lighting and lighting-by-example approaches.
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Becker, Adrienne M. "MIKADO LIGHTING DESIGN." Master's thesis, University of Central Florida, 2004. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4444.
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My thesis will encompass the completion of the lighting design for W. S. Gilbert and Sir Arthur Sullivan's opera The Mikado and a post-production written documentation of the entire production process. The thesis will involve the completion of a lighting design with all of its accompanying paperwork generated in AutoCAD and Excel. The design will require lights for a two-act, multi-locational musical. Lights will need to provide a bright environment that can transform to the various locales. The entire design process will involve close communication with the entire design team, the director and the shop crew. As lighting designer, I will have to communicate with the Master Electrician and instruct him or her on the proper hang and circuiting of all instruments and provide detailed paperwork to ensure the light plot is hung correctly. With the Master Electricians help I will focus and gel all instruments. As lighting designer, I will also write cues and any special lighting effects for the show. During technical rehearsal week I will continue to maintain close communication with the director, making any necessary changes to create a better artistic product. The whole process will involve close collaboration with all of the design areas and an open communication so that lights enhance all elements of the show. As lighting designer, I will have to develop a vocabulary to communicate the abstract ideas of light and communicate them well enough so that the final product is both what the director and I imagined. During this process, I will maintain a journal that details the steps throughout the process and will act as a record of the discoveries and setbacks that occur. I will also provide research to support all of my creative decisions. I will also provide a strong informed basis for the design. The written portion of the Thesis will document the design process from early concept discussions through the completion and opening of the show. The thesis will examine the artistic developments and growth, as well as reflect on the overall success and development of the design. The personal journals maintained throughout the process will be edited and included for insight into daily growth of the design. The inclusion of these journals will also provide insight into the working relationship and nature of my collaboration with all the departments.M.F.A.
Department of Theatre
Arts and Sciences
Theatre
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Garcia, Julie Marie. "Creating effective computer generated scene lighting using traditional film lighting techniques." Texas A&M University, 2005. http://hdl.handle.net/1969.1/3229.
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This thesis explores the process of translating traditional cinematic lighting into the digital
realm by understanding distinctly different lighting styles of three Directors of Photography.
These Directors of Photography are Conrad Hall, Gregg Toland, and Zhao Fei. Digital
lighting studies representative of the work of each Director of Photography were created.
In these studies, the lighting in scenes done by each Director of Photography was digitally
mimicked. As a result, the lighting studies provided valuable insight into the approaches of
these masters of light. An animation was created to display a scene lit in the three lighting
styles of each Director of Photography. The process, learned from the lighting studies, of
creating three different lighting styles representative of each Director of Photography was
applied to the final animation. The analysis and lighting studies of each Directors' of Photography
style expedited the process of lighting the final animation in each different style.
As a result, a more complex environment was effectively lit in three different cinematic
styles with animated light.
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Roussos, Ioannis. "Image based flame lighting." Thesis, University of Bristol, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399940.
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Leroy, Arny. "High performance incandescent lighting." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/111728.
Full textAbstract:
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2017.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 85-92).
The efficiency of incandescent light bulbs (ILBs) is inherently very low due to significant emission at infrared wavelengths, diminishing its market share rapidly. ILBs with cold-side filters that transmit visible light but reflect infrared radiation back to the filament can surpass state-of-the-art light-emitting diodes (LEDs) in both efficiency and light quality (color rending index; CRI). However, practical challenges such as filter and filament thermal stability, filament evaporation and imperfect geometrical alignment (view factor) between the filament and cold-side filter can limit the maximum achievable efficiency and significantly reduce the effectiveness of cold-side filters. In this thesis, we first present a review of existing approaches to improve the efficiency of ILBs such as selective filters and emitters for incandescent lighting. We highlight different challenges in achieving an efficient and long lasting bulb, and discuss previous approaches used to address these challenges in ILBs. We then present the modelling framework as well as the experimental setup and methods use throughout the thesis to study these problems. Second, we show that the effect of imperfect view factor between the filament and filter on the system efficiency can be minimized by combining a cold-side optical filter with a selective emitter. We experimentally and theoretically demonstrate energy savings of up to 67% compared to a bare tungsten emitter at 2000 K, representing a 34% improvement over a bare tungsten filament with a filter. Our work suggests that this approach can be competitive with LEDs in terms of luminous efficiency as well as CRI using selective emitters and filters already demonstrated in the literature, thus paving the way for next-generation high-efficiency ILBs. Third, we propose adding specular side reflectors between the filament and the cold-side filter to increase the view factor between the filament and filter which could further improve the efficiency of ILBs. We develop an analytical model to calculate the filament heat flux in 2-D and 3-D fully-specular enclosures consisting of a filament, a filter and side reflectors as a function of specular view factors and optical properties of the surfaces. Theoretical results show that significant improvements in luminous efficiency can be achieved using side reflectors in an ILB due to increased photon recycling. Our preliminary experimental results demonstrate an 18% reduction in filament power consumption after adding polished copper side reflectors, thus validating the potential of this approach. Finally, we highlight two remaining challenges to achieve a durable and efficient ILB using the current planar geometry with infrared filters and discuss ways to address them. The first challenge - the filter thermal stability, is numerically and experimentally investigated to optimize the filament temperature and system geometry for maximum system efficiency while satisfying the maximum filter temperature. Using a COMSOL model validated by experimental measurements, we find that the maximum achievable luminous efficiency in a best-case scenario (vacuum environment) is about 4.8 % when the maximum filter temperature is limited to 800 'C, only slightly higher than without infrared filters. We then investigate the second challenge - the high rate of tungsten filament evaporation and the resulting reduction in the ILB lifetime. We observe that the tungsten filament evaporation leads to rapid darkening of the filters primarily because of the low filter to filament area ratio, which limits the lifetime of the system to a few hours only. Lastly, we suggest system-level improvements that could help address these challenges and extend the lifetime of the ILB with cold-side filters.
by Arny Leroy.
S.M.
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Aldrich, Matthew (Matthew Henry). "Dynamic solid state lighting." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/58000.
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Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 142-148).
Energy conservation concerns will mandate near-future environments to regulate themselves to accommodate occupants' objectives and best tend to their comfort while minimizing energy consumption. Accordingly, smart energy management will be a needed and motivating application area of evolving Cyber-Physical Systems, as user state, behavior and context are measured, inferred, and leveraged across a variety of domains, environments, sensors, and actuators to dynamically mitigate energy usage while attaining implicit and explicit user goals. In this work, the focus in on the efficient control of a LED-based lighting network. This thesis presents a first-of-its-kind pentachromatic LED-based lighting network that is capable of adjusting its spectral output in response to ambient conditions and the user's preferences. The control of the intensity is formulated as a nonlinear optimization problem and the mathematics governing sensed illuminance, color, and corresponding control (feedback and adjustment) are formally defined. The prototype adjustable light source is capable of maintaining an average color rendering index greater than 92 (nearly the quality of daylight) across a broad adjustable range (2800 K - 10,000 K) and offers two modes of control, one of which is an energy efficient mode that reduces the total power consumption by 20%. The lighting network is capable of measuring the illuminance and color temperature at a surface and adjusting its output with an overall update rate of 11 Hz (limited by the MATLAB kernel). The sensor node features an optical suite of sensors with a dynamic range of 10000 : 1 lx (rms error: 2 lx). The sensor node measures the color temperature of daylight within ±500 K (kelvin). Device testing and validation were performed in a series of experiments in which the radiant power was collected using a radiometrically calibrated spectrometer with an expanded uncertainty (k = 2) of 14% and validated against a model derived by measuring the individual spectra of the system using custom MATLAB tools. A digital multimeter measured the current in the experiments. The work concludes by estimating the energy savings based on the measured optical and electrical data. In environments with moderate ambient lighting, the networked control reduces power consumption by 44% with an additional 5-10% possible with spectral optimization.
by Matthew Aldrich.
S.M.
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Yan, Xiao. "Phosphors for lighting applications." Thesis, Brunel University, 2012. http://bura.brunel.ac.uk/handle/2438/6954.
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Trivalent rare earth cations (RE3+) activated nanometre-sized Y2O2S and Gd2O2S phosphors were prepared by converting hydroxycarbonate precursor powders during a firing process. The precursors were prepared using the urea homoprecipitation method. The choice of host crystal and dopant were optimised to meet the specific requirements for practical applications in the field of lighting, X-ray detection, and displays. Parameters that affect the luminescent properties of the resulting phosphors, such as doping concentration, excitation mechanism, firing temperature, and host lattice were investigated. Tb3+ and Er3+ co-doped Y2O2S and Gd2O2S were studied for their upconversion properties under 632.8 nm red laser excitation. The intensities of UC emission were affected by both doping concentration and host lattices. Tb3+ and Er3+ co-doped Y2O2S was found to show strong downconversion from Tb3+ and upconversion from Er3+. The presence of the Er3+ cations directly affects the Tb3+ down-converting properties by acting as centres for energy transfer. The possible energy transfer between Gd3+ and Er3+ should be responsible for the different trend of Er3+ upconversion intensity in Y2O2S and Gd2O2S. It has been established that the Tb3+ and Er3+ co-doped system is superior than the Yb3+ and Er3+ co-doped one. In the latter system the presence of Yb3+ reduces the efficiency of both upconversion and downconversion emission under red laser excitation. These phosphors show potential applications in the security and anti-fraud field. The novel ZnS:Mn QDs were prepared and successfully incorporated into GaN based photonic crystal (PC) holes to efficiently produce white light. The crystal structure and luminescent properties of the ZnS:Mn QDs were investigated as well as the factors affecting the filling rate. Zn1-xCdxS:Mn QDs were also investigated. The addition of Cd cations leads to a red shift in the PL excitation spectra of the Zn1-xCdxS:Mn QDs. The crystal structures and surface properties were also affected by the presence of Cd. Monodisperse PbS QDs with particle size of ~5 nm has been obtained using a similar aqueous reaction method.
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Becker, Jonas Johannes. "MIDDLA makerspacedynamics in lighting." Thesis, KTH, Ljusdesign, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280060.
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This thesis report deals with the meaning of dynamics in lighting in context of the current state oflighting technology and how certain aspects of those can be applied to a specific space.Former studies discovered that biophilic aspects in design can create great benefits for the usersof a space. Natural elements is what we humans most affiliate to. Based on those findings I implementedaspects of dynamics in lighting into my design proposal assuming to be able to give theusers of the MIDDLA space benefit by recreating some degree of ‘virtual biophilia’.MIDDLA is the laboratory of the Media Technology and Interaction Design department of KTH.Characteristics of these facilities are unique as it is located in the attic floor of the oldest buildingon campus which is rather restricted in terms of daylighting and room clearance. Focus is put onthe corridor to evolve into an extension of the laboratory itself as a study area.Future post-occupancy research could be worthwhile of being conducted in combination with furtherdevelopment of the lighting design.
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Perticone, Guy M. "Lighting The Three Musketeers." OpenSIUC, 2013. https://opensiuc.lib.siu.edu/theses/1146.
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AN ABSTRACT OF THE THESIS OF Guy M. Perticone, for the Master of Fine Arts degree in Theater, presented on April 2, 2013, at Southern Illinois University. TITLE: LIGHTING THE THREE MUSKETEERS MAJOR PROFESSOR: Mark Varns The following document is a written summation of the process of researching, designing, installing, and evaluating the lighting design for The Three Musketeers by Ken Ludwig. The show was produced at Southern Illinois University in November 2013 and was performed upon the McLeod Stage. The first chapter will discuss the research process featuring the novel by Alexandre Dumas and the play as written by Ken Ludwig. Chapter 2 covers the design process and its various considerations while Chapter 3 expounds upon the installation of the lighting design. Chapter four is where I evaluate my successes and failures during the course of the preparation for and culmination of the lighting design. The appendices feature a scene by scene breakdown of the action of the play, a visual record of gobos used in the production, and a series of photographs that show scenes from the production as well as a series of images featuring specific aspects of the lighting design. Supplementary material is a pdf file of the final lighting plot.
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Nelsen, Andrew Charles. "Scenic and lighting design." Thesis, University of Iowa, 2013. https://ir.uiowa.edu/etd/2592.
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Haeberlin, Marc W. "Adaptive Automotive Lighting Systems." DigitalCommons@CalPoly, 2015. https://digitalcommons.calpoly.edu/theses/1480.
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Over the past few years, the use of LEDs within the automotive and avionic industries has increased due to their high efficiency, durability and wide range of light brightness. As the use of LEDs within these industries grows, a need for reliable, high performance drivers becomes more relevant. Companies are implementing LEDs for applications involving adaptive lighting or simple dimming features. This thesis shows implementation of various non-isolated analog converters integrated with digital dimmers to achieve these adaptive lighting systems. Adaptive lighting systems involve reading an input from an external source (brake pedal or steering wheel) and changing the brightness and/or pattern of the brake/headlights to convey more information to the driver and their surroundings. The analog converters will implement Linear Technology’s LED driver IC’s, while the digital dimmers comprise of microcontrollers and discrete components. The design, simulation, and hardware verification will showcase the abilities of these analog converters. Results will demonstrate the proposed applications for both adaptive front and brake lighting.
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Carter, Timothy M. "Lighting design song of survival /." Access electronically, 2004. http://ro.uow.edu.au/theses/286.
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Forsberg, Joakim. "Aesthetical Perspectives in Street Lighting : A Study of Future Potentials in LED Lighting." Thesis, Luleå tekniska universitet, Institutionen för ekonomi, teknik och samhälle, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-60258.
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As of today, around 19% of all electricity that is produced around the world goes toward lighting roads and cities. The light is also produced in a wasteful manner, creating disturbances in nature as well as for people. Recent developments in light emitting diodes offers remedy to these problems but the technology needs a proper revision of street lighting’s purposes. Light emitting diodes use a fraction of the energy needed for previous lighting methods. They offer unique implementation opportunities in physical construction as well as being highly controllable which makes them highly adaptable. The thesis looks at how aesthetics can be used to optimally introduce the upcoming worldwide installation of the new technology. Its unique characteristics were looked at and used to create a Korean styled luminaire and an interactive street lighting system in two separate design processes. The results of the developments were firstly, a modular luminaire which combines Korean architectural aesthetics with a cost effective construction. The second result was an interactive urban street lighting system which suggests a dimmable lighting that through an adaptable computer control responds to pedestrians’ presences. This is a master’s thesis (D7014A) is a project in product design at the education of industrial design engineering at Luleå University of Technology and is worth 30 credits. The project spanned 20 weeks during the spring semester of 2016. The project was conducted in collaboration with Pukyong National University’s industrial design department, in Busan, South Korea.Omkring 19% av all elektricitet som produceras idag runtom i världen åtgår till att belysa vägar och städer. Ljuset som produceras även i ett slösaktigt utförande som skapar störningar i natur såväl som för människor. Nya utvecklingar kring ljusdioder kan bringa bot till dessa problem men teknologin kräver en passande revision av gatubelysningars roller i samhället. Dioderna använder nämligen en bråkdel av energin äldre belysningsmetoder kräver och medför en revolution i fysiska implementeringsmöjligheter medans de även låter sig kontrolleras till en hög grad. Dessa egenskaper gör att de har en oöverträffad anpassningsbarhet. Examensarbetet ser till hur estetik kan användas för att optimalt introducera lamporna i den världomfattande installationen dem. Lampornas unika möjligheter undersöktes och användes till att utveckla ett Koreansk-inspirerat gatulyse och ett interaktivt belysningssystem i två separata designprocesser. Resultatet av utvecklingarna var först, en modulbaserad armatur med en kostnadseffektiv konstruktion. Det andra resultatet var ett interaktivt stadsbelynsingssystem som föreslår ett dämpningsbart system vilket genom en adapterbar dator svarar på fotgängares närvaro. Detta examensarbete (D7014A) är ett projekt inom industriell design på utbildningen Teknisk design vid Luleå Tekniska Universitet och innefattar 30 högskolepoäng. Projektet sträckte sig över 20 veckor under vårterminen 2016. Arbetet utfördes i samarbete med Pukyong National Universitys institution för industriell design i Busan, Sydkorea.
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Baumer, Kitrina. "Lighting the Real and the Fantastical| She Kills Monsters Lighting Design Project Report." Thesis, California State University, Long Beach, 2018. http://pqdtopen.proquest.com/#viewpdf?dispub=10751926.
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In partial fulfillment of a Master of Fine Arts degree, this project report documents the lighting design process of California State University, Long Beach’s Spring 2016 production of She Kills Monsters by Qui Nguyen. This report describes the approach to the production through research and personal experience, the implementation of the lighting design, and a critique on the design and production. The report details how I connected to the play and used those connections to help create two distinct worlds onstage, and then meld those two worlds into one through the use of color and texture
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Wu, Siyuan. "Investigating Lighting Quality: Examining the Relationship between Perceived Safety and Pedestrian Lighting Environment." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/48170.
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Pedestrian lighting design is a very important part of urban lighting design. Appropriately designed pedestrian lighting can provide people with sense of safety and improve their quality of life. However, the exploration of people's needs and perceptions of pedestrian lighting is neglected. Most of the existing design guidelines are generated from designer centered perspectives.
This study aims at creating new perspectives in pedestrian lighting study. In this study, lighting quality is investigated through a behavioral science approach by examining the relationship between the lighting attributes and people's perceived safety. Primary research objectives include identifying important attributes of the lighting environment, examining their influence on people's perceived safety, and exploring the impacts of pedestrian's individual characteristics in this perceptual process. In order to fulfill the research objectives, this thesis comprises an online survey that aims to discover the environmental perceptions of the people from Virginia Tech towards the nighttime pedestrian footpath scenes of the campus.
The findings from the online survey indicate that important lighting attributes influencing people's perceived safety are identified as: uniformity, facial recognition, concealment and perceived brightness. The findings further indicate that some environmental context attributes, environmental perception attributes, and socio-demographic attributes also significantly influence people's perceived safety. Several design guidelines are provided for future lighting design practice.Master of Landscape Architecture
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Bradford, Levi. "Lighting the Stage: The Lighting Design Process and Production of Will Eno's Middletown." Digital Commons @ East Tennessee State University, 2020. https://dc.etsu.edu/honors/604.
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The world of theatre focuses on presentation and showmanship, but what audience never sees is often the most vital parts of the show. Behind the curtains, in the backstage of the theatre is where the real magic happens. This paper focuses on shedding some light on one aspect of the backstage. Without light, nothing would be seen. Follow along as the process of being chosen, creating, research, and production are revealed and explained to make the backstage more appreciated.
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Alsaeid, Mohamad Khaled. "Sustainable lighting in offices "How to save energy in offices with a new lighting design ?" : An energy efficient Lighting design approach in offices." Thesis, KTH, Ljusdesign, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-290570.
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Sustainable efficient lighting has become as one of the most important issues in the office environment In Sweden, energy demand for lighting corresponds to 20% of the total electricity used in office buildings (1), while It has been estimated that lighting accounts for about 20% of the total power generation of the world (2). This thesis investigates how to make lighting in offices more sustainable and focuses on energy efficiency, to save energy through creating guidelines related to light source technologies, lighting control systems and the user preferences. Then those guidelines are applied to an existing office through suggesting a new lighting design. The existing office in this case is the ÅF company 10th office floor located in Stockholm, Sweden. This investigation methodology consists of two main parts literature review and Project (case) study. In the first part, methods used are a combination of literature review related to saving energy through sustainability in lighting and how light source technology, lighting control systems and the effect of user behavior could help to create more energy efficient lighting systems. In the second part, the methods are qualitative such as surveys, quantitative methods and personal observations. The used methods helped to create guidelines for the new suggested lighting design for ÅF 10 th office floor part. The Results shows that the new suggested lighting design saves energy up to 31.96% more than the current lighting situation.
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Alsaeid, Khaled. "Sustainable lighting in offices : " How to save energy in officeswith a new lighting design ? "." Thesis, KTH, Ljusdesign, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280059.
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Sustainableefficient lighting is becoming seen as one of the mostimportant issues in the office environment In Sweden, energydemandfor lighting corresponds to 20 of the total electricity use in officebuildings 31 while lighting form on average 33 1 of the electricityconsumption in UK office buildingsThisthesis investigate how to make lighting in offices more sustainableand focus on energy efficiency, to save energy through creating guidelinesrelated to light source technologies lighting control systems and the userbehavior then apply those guidelines to an existing office throughsuggesting a new lighting designTheexisting office in this case is the ÅF company 10 th office floor locatedin Stockholm SwedenThisinvestigation methodology consist of 2 main parts literature review andProject ( study At the first part, methods used are a combination ofliterature review related to saving energy through sustainability in lightingand how light source technology lighting control systems and the effect ofuser behavior could help to create more energy efficient lighting systemsAtthe second part, methods used in the Project study analyzed throughqualitative methods through surveys in addition to quantitative methodthrough and personal observations The used methods helped to createguidelines for the new suggested lighting design for ÅF 10 th office floorpartTheResults shows that the new suggested lighting design saved up to31 96 than the current lighting situation3
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Han, Sangpil. "A study on lighting control method for visual harmonization of daylighting and artificial lighting." 京都大学 (Kyoto University), 2005. http://hdl.handle.net/2433/144908.
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Kyoto University (京都大学)0048
新制・課程博士
博士(工学)
甲第11562号
工博第2508号
新制||工||1341(附属図書館)
23205
UT51-2005-D311
京都大学大学院工学研究科生活空間学専攻
(主査)教授 鉾井 修一, 教授 髙橋 大弐, 助教授 石田 泰一郎
学位規則第4条第1項該当
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Çam, Rabia Serim Erkal. "An analaytical approach to the urban outdoor lighting quality of residential areas in İzmir/." [s.l.]: [s.n.], 2004. http://library.iyte.edu.tr/tezler/master/sehirplanlama/T000283.pdf.
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Sánchez, Balvás Lizeth Artemisa. "Sustainability for energy-efficient lighting." Doctoral thesis, Universitat Politècnica de Catalunya, 2021. http://hdl.handle.net/10803/671451.
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The social, environmental and economic side effects of the street lighting are the foremost concern for this thesis, since the expanding use of light at night, along with an inappropriate design, has led a large energy consumption, light pollution and impact on human health and the environment. With increasing consideration on the negative side-effects, it has introduced new recommendations for energy efficient lighting, indicators, and new energy classifications systems to evaluate the energy performance of lighting systems.
According to the literature, the energy classification systems are based on installed power and lighting parameters (luminance or illuminance), which influence by regulating the energy consumption and the light levels entering the eye. However, recent studies on the advances of lighting technologies, i.e. light-emitting diode (LED), control systems and luminaires, and developments in mesopic photometry and its influence in energy reduction and vision performance, demand for new requirements. This implies a new quantification system to measure energy efficiency by incorporating all the elements that affect the overall efficiency of the installation.
Within this context, an alternative tool to aid decision-makers in choosing the best energy efficiency system to be implemented and to support evidence on the energy savings on street lighting was proposed. This alternative approach takes into consideration the improvement of visual performance by correcting the standard photometry system (photopic) by the mesopic system recommended within the CIE 191:2010 and the operational hours of the lighting system, which are usually disregarded by the most commonly used energy classification approaches.
The research outlined in this thesis proposes to use the value function approach that allowed standardizing the proposed energy consumption indicator within a value scale ranging from 0 to 1, which also represents satisfaction degree: the less energy is consumed the more grade of satisfaction. A case study comprising 13 representative streets of the Eixample District of Barcelona was used to validate the alternative approach proposed, and results were compared with those obtained by considering three energy efficiency classifications currently used in Spain, Netherlands and Italy. For the sample, a systematic procedure was carried out to collect data regarding lighting class and geometrical characteristics of the streets, and to the main characteristics of the lighting system.
The results derived from the application of the proposed method can be used straightforwardly to quantify the potential energy savings that can be obtained when using different energy classifications. Moreover, these results provide a critical analysis by pointing out the strengths and weakness of the most significant energy performance indicators along with their corresponding energy classification systems. In conclusion, this thesis constitutes a conceptual and empirical approach to the energy classification systems applied in Europe to the street lighting. Thanks to the methodological contribution and the knowledge obtained, this thesis intends to contribute to improving the energy efficiency-based classification systems, and consequently, to move forward into a sustainable and smart assessment tool.La principal motivación para el estudio del alumbrado público en este trabajo, radica en la influencia que éste ejerce a nivel social, ambiental y económico. El aumento del consumo energético, la contaminación lumínica y el impacto tanto en la salud como en el medio ambiente, son efectos secundarios causados por el uso excesivo de la luz durante la noche junto con un diseño inadecuado del alumbrado público. Por ello, han surgido recomendaciones en el ámbito de eficiencia energética, indicadores y sistemas de clasificación energética que ayudan a evaluar las mejoras necesarias para obtener una instalación de alumbrado público eficiente. La mayoría de los sistemas de clasificación energética están basados en parámetros como la potencia instalada y los niveles de iluminación. Sin embargo, existen estudios que confirman los recientes avances tecnológicos en iluminación y, en el desarrollo de la fotometría mesópica que influye en la reducción del consumo energético y en el rendimiento visual. Esto pone de manifiesto que la evaluación de eficiencia energética del alumbrado público a través de los sistemas de clasificación energética actuales, no deberían basarse solamente en los parámetros básicos, si no que también deberían considerarse otros parámetros que incidan en la eficiencia global de la instalación y que tomen en cuenta las demandas actuales del sector. En este contexto, se ha propuesto una herramienta alternativa que ayude a los responsables de tomar decisiones a seleccionar e implementar el mejor sistema de eficiencia energética, y a evidenciar los ahorros energéticos en el alumbrado público. Este enfoque alternativo toma en cuenta la mejora del rendimiento visual al corregir el sistema de fotometría estándar (fotópico) por el sistema mesópico recomendado en el reporte técnico CIE 191: 2010, así como las horas de funcionamiento del sistema de iluminación. Estos dos parámetros, generalmente son ignorados por los sistemas de clasificación energética usados comúnmente. Esta investigación propone utilizar la Función de Valor, la cual refleja el grado de satisfacción del indicador de consumo energético a partir de un valor estandarizado en una escala del 0 al 1: menos energía es consumida, mayor es el grado de satisfacción que se obtiene. El nuevo enfoque se ha validado en un caso de estudio conformado por 13 calles representativas del distrito del Eixample de Barcelona, cuyos resultados fueron correlacionados con tres sistemas de clasificación energética utilizados actualmente en España, Países Bajos e Italia. Se llevó a cabo un procedimiento sistemático para la colección de datos del caso de estudio, donde se obtuvieron las características geométricas de las calles y sus respectivas clases de iluminación, así como las características principales del sistema de iluminación. Los resultados obtenidos de la aplicación del método propuesto y de las diferentes clasificaciones energéticas, se pueden utilizar de forma sencilla para cuantificar el ahorro energético. Además, estos resultados proporcionan un análisis crítico al resaltar las fortalezas y debilidades de los indicadores de eficiencia energética junto con sus correspondientes sistemas de clasificación energética. En conclusión, este trabajo constituye un enfoque conceptual y empírico de los sistemas de clasificación energética del alumbrado público aplicados en Europa. Gracias al aporte metodológico y al conocimiento obtenido, este trabajo pretende contribuir a la mejora de los sistemas de clasificación basados en la eficiencia energética y, en consecuencia, avanzar hacia una herramienta de evaluación sostenible e inteligente.
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Ogg, Craig M. "Lighting design for "The Crucible" /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1328054871&sid=14&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Diemer, James W. "Lighting design for "Copernicus Rising" /." Available to subscribers only, 2007. http://proquest.umi.com/pqdweb?did=1328057811&sid=1&Fmt=2&clientId=1509&RQT=309&VName=PQD.
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Кузьменко, А. К. "Система розумного освітлення (smart lighting)." Thesis, Київський національний університет технологій та дизайну, 2019. https://er.knutd.edu.ua/handle/123456789/13737.
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Garcia, Rodriguez Raquel. "LIGHTING MASTER PLANFOR MARCHAMALOSALT FLATS." Thesis, KTH, Ljusdesign, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280068.
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The Marchamalo salt flats, built in the 18th century, are located near Cabo de Palos, Murcia (Spain), in a hot spot area with constant pressures of tourism and urban speculation. The salt flats are currently abandoned, but its landscape and ecological value still subsist. This Thesis aims to develop a low impact lighting Master plan for Marchamalo salt flats in which a comprehensive analysis is relevant for the design project. A holistic analysis method is employed which considers three agents: “Space”, “Humans” and “Light” to which the factor “Flora & Fauna” was added since the original method was developed for an urban context while the salt flats are located in a natural protected area. Each agent is studied in depth, separately and the interrelations between them. Applying the interpretation of facts and data developed in the analysis and by means of alternative urban lighting solutions like phosphorescence, portable lamps and smart controls; a customised urban lighting design is proposed based on the salt flats identity, preservation of darkness, multi-sensorial experience of the realm and the reconnection with the sky and nature. The lighting proposal will also be the guiding thread to raise awareness about the importance of protecting the heritage in the Region of Murcia in general, taking as a particular example the case of Marchamalo salt flat.
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Phadke, Swanand Shripad. "Distributed Control for Smart Lighting." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1274899902.
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Anderson, Andre. "Psychological Lighting Guidelines for Designers." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1460652490.
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Mordeglia, Cristina. "The Home-Office Lighting Kit." Thesis, KTH, Ljusdesign, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-297959.
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This Master Thesis, inspired by the relevance that home-offices have assumed as a consequence of the COVID-19 pandemic, originated from the architectural, quantitative, and qualitative analysis of lighting within the author’s student accommodation on KTH Main Campus, in Stockholm (Sweden). As a matter of fact, this background study proved that recommended lighting levels (Illuminance, Contrast Ratio, CCT, CRI, M-EDI, and DER values) were not met, making the space unsuitable and unhealthy to both live and work in. Moreover, evaluating individual lighting preferences, it was demonstrated that flexibility, customizability, and adaptability to daylighting and tasks are fundamental requirements for working from home.Considering the temporary nature of students’ leases, the idea of developing an inexpensive and easily assemblable kit of smart products, aimed at improving lighting in dormitories, came quite naturally.To study the implementation of visual comfort and focus on tasks, literature review, market analysis, quantitative measurements, and hands-on experiments were carried on.Thus, with the gained knowledge and experience, the Home-Office Lighting Kit, an array of commercially available sockets, shades, and smart sources, supporting circadian rhythm and individual preferences, was proposed. Along with it, instructions on set-up and scenarios were provided.Although the overall conclusion was that the market needs products with a better balance between price, sturdiness, and reliability, the lighting conditions within the case study space were substantially improved, making other students interested in doing the same.Eventually, interesting cues for the sector’s development were proposed.
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Hetherington, Christopher James. "I Believe: Lighting Spring Awakening." Master's thesis, Temple University Libraries, 2013. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/237004.
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TheaterM.F.A.
This thesis examines, documents, and evaluates the process of designing the lighting for a production of Spring Awakening, produced by Temple University's Department of Theater. I will discuss the initial design process, the execution of the design, and evaluate the finished design.
Temple University--Theses
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Přibyl, Matěj. "Ocenění závodu Automotive Lighting s.r.o." Master's thesis, Vysoká škola ekonomická v Praze, 2012. http://www.nusl.cz/ntk/nusl-197095.
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The final thesis "Business valuation of the company Automotive Lighting s.r.o." is divided into the theoretical and the practical part. The theoretical part is first focused on general issues of valuation. Its following parts then theoretically describe the general method of business valuation. The practical part is dedicated to the application of methods described in the theoretical part. Only the discounted cash flow to equity method (representing income valuation methods) and the EV/EBITDA multiple method (representing market methods) are applied due to the scope of the thesis. The property approach is represented by the equity book value. The thesis concludes with the final value statement.
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Santos, Ana Patrícia Gonçalves dos. "Street lighting mesh network protocol." Master's thesis, Universidade de Aveiro, 2016. http://hdl.handle.net/10773/15970.
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Mestrado em Engenharia Eletrónica e TelecomunicaçõesThe digital revolution of the 21st century contributed to stem the Internet of Things (IoT). Trillions of embedded devices using the Internet Protocol (IP), also called smart objects, will be an integral part of the Internet. In order to support such an extremely large address space, a new Internet Protocol, called Internet Protocol Version 6 (IPv6) is being adopted. The IPv6 over Low Power Wireless Personal Area Networks (6LoWPAN) has accelerated the integration of WSNs into the Internet. At the same time, the Constrained Application Protocol (CoAP) has made it possible to provide resource constrained devices with RESTful Web services functionalities. This work builds upon previous experience in street lighting networks, for which a proprietary protocol, devised by the Lighting Living Lab, was implemented and used for several years. The proprietary protocol runs on a broad range of lighting control boards. In order to support heterogeneous applications with more demanding communication requirements and to improve the application development process, it was decided to port the Contiki OS to the four channel LED driver (4LD) board from Globaltronic. This thesis describes the work done to adapt the Contiki OS to support the Microchip TM PIC24FJ128GA308 microprocessor and presents an IP based solution to integrate sensors and actuators in smart lighting applications. Besides detailing the system’s architecture and implementation, this thesis presents multiple results showing that the performance of CoAP based resource retrievals in constrained nodes is adequate for supporting networking services in street lighting networks.
A revolução digital do século 21 contribuiu para o surgimento da Internet das Coisas (IoT). Em breve triliões de dispositivos embutidos usando o Internet Protocol (IP) serão parte integrante da Internet. De modo a suportar tal gama de endereços, um novo protocolo de Internet, chamado Internet Protocol versão 6 (IPv6) está a ser adoptado. O IPv6 over Low power Wireless Personal Area Networks (6LoWPAN) acelerou a integração das redes sem-fios de sensores na Internet. Ao mesmo tempo, o Constrained Application Protocol (CoAP) tornou possível fornecer funcionalidades de serviços Web RESTful a dispositivos com recursos limitados. Este trabalho baseia-se em experiências anteriores em redes de iluminação pública, para os quais um protocolo proprietário, elaborado pelo Lighting Living Lab, foi implementado e usado durante vários anos. O protocolo proprietário tem sido utilizado numa ampla gama de placas de controlo de iluminação. De modo a suportar aplicações heterogéneas com requisitos de comunicação mais exigentes além de melhorar o processo de desenvolvimento de aplicações, adaptou-se o Contiki OS à placa LED driver de 4 canais (4LD) da Globaltronic. Esta dissertação descreve o trabalho conduzido para adaptar o Contiki OS ao microprocessador Microchip TM PIC24FJ128GA308 e apresenta uma solução baseada em IP para integrar sensores e atuadores em aplicações de iluminação inteligentes. Além da descrição da arquitetura e da implementação do sistema, este trabalho apresenta vários resultados que mostram que o desempenho do protocolo CoAP na placa 4LD é adequado para suportar serviços Web em redes de iluminação pública.
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Malmquist, Cassandra Muree Kathleen. "Theatre and dance lighting design." Thesis, University of Iowa, 2015. https://ir.uiowa.edu/etd/1688.
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Papparotto, Alessandro. "Lighting quality and energy consumption." Doctoral thesis, Università degli studi di Padova, 2008. http://hdl.handle.net/11577/3425046.
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Lighting quality assessment and energy consumption
investigation about the relationship between lighting quality and energy conusmption. Standard and technological review.
Investigation of 3 case studies and realization of one of the three.
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Davoodi, Anahita. "Lighting simulation for a more value-driven building design process." Licentiate thesis, Tekniska Högskolan, Högskolan i Jönköping, JTH, Byggnadsteknik och belysningsvetenskap, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-31701.
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Concerns about global warming are increasing, hence, the urgency to cut carbon emissions. Reducing energy consumption, including lighting energy, is seen as the primary solution. Yet, solving the environmental factor should not come at the cost of other pillars of sustainable development. Rather, maximizing the total value of the building should be the focus. Maximizing value in the context of lighting entails improving the quality of the lighting. This study has investigated how lighting simulation could help in achieving better lighting quality. The aim of the thesis was defined as to understand the underlying architecture of lighting simulation and obtain an overview of its characteristics and applications as well as to study the use of current simulation tools. The theoretical background of lighting simulation (in the domain of Systems Engineering) was reviewed from the literature. This revealed the missing and imperfect links in the solution-to-value chain. The thesis suggests the use of a new base metric, Retinal Illuminance Map, as a solution, which in combination with black box simulation of a visual system can help repair this incomplete chain. The study of the current lighting simulation tools (Paper 1) revealed that illuminance-based metrics, luminance-based metrics, daylight availability metrics, and glare indexes are the most available performance metrics in existing lighting simulation tools. Based on usability, acceptability, availability, and previous references in the literature six software programs (Radiance, DAYSIM, Evalglare, DIALux, VELUX, and VISSLA) were selected and compared. It was found that no single tool could meet all the needs of a designer, hence, simulation tool(s) should be selected (or combined) according to the requirements of project goals and the stage of design. Building on these studies, applications of lighting simulation were identified and compiled in relation to different aspects, including performance metrics, stages of design, optimization, model integration, BIM, and parametric modeling. To obtain first-hand information about lighting designers’ experience, an online survey was conducted in Sweden (Paper 2). The results showed that lighting simulation programs were widely (90%) used in Sweden for analysis and/or rendering purposes. The majority of lighting designers considered both daylight and artificial light in their design. Factors such as ease-of use, simulation time and training had more weight than accuracy and the diversity of metrics in practitioner’s eyes. Surrogate modeling was identified as a solution for speeding up simulation time, which would also enable exploration of design solution space especially in the early design stage.
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Guðmundsdóttir, Anna Kristín. "Outdoor lighting in Icelandic schoolyards : The importance of outdoor lighting during the dark winter days." Thesis, KTH, Ljusdesign, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-210258.
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Schoolyards play an important role in the Icelandic education system. Students aged 6 to 12 years old are required to go outdoors for recess at least two times per day. To play, get fresh air and to regain energy for upcoming classes. The schoolyards are even sometimes used for outdoor education where the students can experience their nearest environment. The children spend a great time of their childhood in school, which should support their well-being by offering an environment of good quality.The thesis main objective is to examine the importance of outdoor lighting in Icelandic schoolyards by the dark winter days. Since Iceland is located at high latitudes, the amount of daylight varies between seasons, with shorter days by winter but longer and brighter days by the summer.The structure of the thesis is a combination of research background and a case study. The research background introduces the positive link between the outdoors and well-being and how the mindset towards the winter can change the perception of darkness. Possibilities of outdoor lighting are examined, how lighting can contribute to the users and the identity of urban spaces. The case study examines two Icelandic schools where the current conditions are analyzed. Qualitative interviews were carried out to gain insight from school employees about the school environment and their experience of the students‘ well-being during the dark winter months. Finally, a lighting proposal is introduced that illustrates how layers of light can enrich the school outdoor environment.It can be truly said that outdoor lighting is of high importance in Icelandic schoolyards, for the students to see and experience the schoolyard by dark winter days. It is important that the lighting is in context with the schoolyard elements and thereby enhancing the quality of the environment.
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Patti, Anthony Peter. "LIGHTING THE DEAD: THE CREATIVE PROCESS FOR THE LIGHTING DESIGN OF THE ADDAMS FAMILY MUSICAL." OpenSIUC, 2016. https://opensiuc.lib.siu.edu/theses/1923.
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Starting from initial research of the show and its roots and ending with evaluation of the work post production, this paper documents the lighting design and the process leading up to SIU’s production of The Addams Family Musical. The first chapter delves into the pre-design research of the script and my personal goals for the design. The second chapter explores the selection and implementation of the design, discussing the procedures and challenges that were encountered leading up to opening night. The third chapter is an evaluation of the work completed regarding the design and technical aspects of the production as well as addressing my personal goals for the production. The appendices include inspiration imagery, light plot with paperwork, pre-visualized renderings, photographs of technical props, and production photographs.
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Netz, Jenny. "Task lighting for the future school." Thesis, KTH, Ljusdesign, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280027.
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Lighting is one of the most important issues for the perception of the physical environment and the ability to perform. Lighting design of classrooms is therefore crucial to achieve the goals of education. The Swedish school aim to provide a working environment supporting every child. As children are individuals their perceptions and light preferences differ just as adults do. Accessibility to tools to be able to customize for the individual child are therefore important. To support our planet, every new product developed should be considered regarding sustainability. This is particularly important of products designed for children as they are our future. This thesis will focus on finding a task light option suitable for the classroom environment. By researching literature, performing market research and conducting interviews with school professionals, important characteristics of a school task light were established. Based on the findings, a task light proposal was developed including the defined properties.
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Ligon, Nicholas. "Hairspray Lighting Design: From Concept to Production." Master's thesis, Temple University Libraries, 2017. http://cdm16002.contentdm.oclc.org/cdm/ref/collection/p245801coll10/id/451356.
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TheaterM.F.A.
This thesis document will chronicle the entire lighting design process of Temple University Theatre Department’s fall 2016 production of Hairspray. The process will be composed of four sections: research and analysis, preliminary documents, implementation and production, and archiving the design. In addition, this thesis will define both my personal and production goals in relation to my educational progression while studying at Temple University as well as discussing my personal growth within the program.
Temple University--Theses
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Kuo, Hsueh-Tsung, and 郭學聰. "Lighting by Guides: Lighting Parameters Inference from Lighting Guides." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/76886294550364872801.
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碩士國立臺灣大學
資訊網路與多媒體研究所
96
In this thesis, we introduce and present a solution to the lighting-by-guide problem: given the description of a scene and an image as the lighting guide, automatically find a lighting configuration so that the resulted rendering best matches the lighting guide. Our solution framework consists of four main modules, initial guess, optimization, relighting, and difference metric evaluation. Since the resulted problem is a high-dimensional nonlinear optimization problem, it is crucial to have a good initial guess. We propose an efficient and effective algorithm for this task. Experiments show that our system can produce good quality lighting setups. The result is an automatic lighting algorithm which infers the lighting configuration from the lighting guide, greatly alleviating lighting artists'' workload.
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Kuo, Hsueh-Tsung. "Lighting by Guides: Lighting Parameters Inference from Lighting Guides." 2008. http://www.cetd.com.tw/ec/thesisdetail.aspx?etdun=U0001-2207200802541800.
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Liao, Chen-Hung, and 廖振閎. "Lighting Efficiencies of Indirect Lighting Patterns." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/16500228217022212095.
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碩士中原大學
室內設計研究所
101
Presenting design features via indirect lighting techniques is a common place for interior designers. This may, in a sense, imply user preference toward such a way of lighting ambiance. In another, however, light beams reflected indirectly from the surface materials surrounding light sources are partially absorbed, redirected, or trapped within the cove. As such, lighting aesthetics is achieved at the expense of energy conservation. To ameliorate, there is a need to scrutinize detail designs of indirect lighting in the sense of secondary optical design of various light sources as well as the luminous efficiency. This study takes on the task to elevate luminous efficiency of two typical means adopted in interior design: cove lighting and cornice lighting. The experiment examines the causal effects between such variables as light source, ceiling paint, beam angle, ceiling pattern, and illumination level of task areas. The resultant data are analyzed via MDPREF program of MDS statistical package. Through which, comparative advantage of these variables may be identified. The analyses reveal the significance of two factors, i.e., the luminous efficacy of tubular light sources, such as fluorescent and LED, and their secondary optical design immediately surrounding them. As a result, it is recommended that light tubes are to be installed roughly 450 tilted outward for more light output, and the reflecting surfaces facing the tube are to be molded into concave shape so as to guide the light beams down.
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CHEN and 陳瓊蕙. "LIGHTING." Thesis, 2000. http://ndltd.ncl.edu.tw/handle/81006555740749758099.
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碩士國立成功大學
建築學系
88
This paper is based on the purpose of a design project to explore the assocation between the light and space through the view of solid and void interface . “ Light as a form giver” , a simple concept , is one point of view to look at the assocation between the light and space formation. The form of interface is a element of design method which describes whole system and applied here lies in the domain of physical element. There are unlimited possibilities of light and space formation. However, that is not focused in this paper. What the paper concerns about the most is how the light is formed. This thesis consists of four parts: 1. Review the related theory of light and architectural development. Through the establishment of the related theory and development of light to architecture, may realize the basic intension of light and architectural space. 2. Analysis of expression of light in architectural space and form. By the case study to order the expressive factor of architectural space in light and make an establishment of concept and theory. 3. Establish the design theory and method. To look at the assocation between the light and space through the view of solid and void interface, we can define and construct the design method. 4. Demonstration and discussion. At last, through designing a museum project (japan exhibition space) to present the characters of the design method and to reinforce the conclusion of the previous study discourse. Above are the four steps to define the concept and method. It will be used for architectural design. If there are systematic classifications between the light and space formation, we can sum them up or transform them. Comparing with the different kinds of design tools, three-dimensional software is better to express the light and interior space. By the simulation of three-dimension software, the light and the material can be replace in different characters immediately. In the design process , designer tries to use the “ top-down” method approach for study plan and scale models is used to assist design thinking. This process can be viewed as a tree structure. There are unlimited possibilities of space formation. To conclude, that is not focused in this process, what the paper concerns about the most is the develop process and result of production be useful for the design method.