Academic literature on the topic 'Ellipsoidal reflector'
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Journal articles on the topic "Ellipsoidal reflector"
Bezuglyi, M. A., N. V. Bezuglaya, A. V. Ventsuryk, and K. P. Vonsevych. "Angular Photometry of Biological Tissue by Ellipsoidal Reflector Method." Devices and Methods of Measurements 10, no. 2 (June 24, 2019): 160–68. http://dx.doi.org/10.21122/2220-9506-2019-10-2-160-168.
Full textBezuglaya, N. V., A. A. Haponiuk, D. V. Bondariev, S. A. Poluectov, V. A. Chornyi, and M. A. Bezuglyi. "Rationale for the Choice of the Ellipsoidal Reflector Parameters for Biomedical Photometers." Devices and Methods of Measurements 12, no. 4 (December 22, 2021): 259–71. http://dx.doi.org/10.21122/2220-9506-2021-12-4-259-271.
Full textHe, Jun Feng, and Chang Chun Huang. "Large Amount of Off-Axis Machining Ellipsoidal Reflector." Applied Mechanics and Materials 484-485 (January 2014): 254–58. http://dx.doi.org/10.4028/www.scientific.net/amm.484-485.254.
Full textHe Junfeng, 贺军峰, 田润澜 Tian Runlan, 田桢熔 Tian Zhenrong, and 白东峰 Bai Dongfeng. "Fabrication of Large Amount Off-xis Ellipsoidal Reflector." Laser & Optoelectronics Progress 45, no. 12 (2008): 64–67. http://dx.doi.org/10.3788/lop20084512.0064.
Full textBezuglyi, Mikhail, Ivan Sinyavski, Natalia Bezuglaya, and Andrii Kozlovskyi. "MANUFACTURING SPECIAL FEATURES OF ELLIPSOIDAL REFLECTOR FOR PHOTOMETERS." Bulletin of Kyiv Polytechnic Institute. Series Instrument Making, no. 52(2) (December 30, 2016): 76–81. http://dx.doi.org/10.20535/1970.52(2).2016.92959.
Full textYing, Shang-Ping, Bing-Mau Chen, Han-Kuei Fu, and Chen-Yu Yeh. "Single Headlamp with Low- and High-Beam Light." Photonics 8, no. 2 (January 27, 2021): 32. http://dx.doi.org/10.3390/photonics8020032.
Full textYao, Manwen, and John C. Wolfe. "A laser-induced fluorescence biosensor by using ellipsoidal reflector." Optics & Laser Technology 39, no. 5 (July 2007): 1040–45. http://dx.doi.org/10.1016/j.optlastec.2006.05.002.
Full textKang, Yang, Ning Li, Chun-Sheng Weng, and Chuan-Wei Wang. "Acoustic characteristics of pulse detonation engine with ellipsoidal reflector." Chinese Physics B 27, no. 10 (October 2018): 104703. http://dx.doi.org/10.1088/1674-1056/27/10/104703.
Full textYazgan, E. "The radiation pattern of a surface loaded ellipsoidal reflector." IEEE Transactions on Antennas and Propagation 35, no. 3 (March 1987): 347–49. http://dx.doi.org/10.1109/tap.1987.1144102.
Full textBailey, Michael R. "Acoustic and cavitation fields of a pressure release ellipsoidal reflector." Journal of the Acoustical Society of America 101, no. 5 (May 1997): 3138. http://dx.doi.org/10.1121/1.418972.
Full textDissertations / Theses on the topic "Ellipsoidal reflector"
Přikrylová, Ivana. "Návrh projekčního osvětlovače." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-254364.
Full textБезуглий, Михайло Олександрович. "Еліпсоїдальні рефлектори для фотометрії біологічних середовищ." Thesis, КПІ ім. Ігоря Сікорського, 2020. https://ela.kpi.ua/handle/123456789/31490.
Full textThe thesis is devoted to the solution of the important scientifically applied problem of development the construction and application method of ellipsoidal reflectors in the registration and analysis systems of scattered optical radiation, as well as approbation of new structural, functional and biomedical solutions. This made it possible to theoretically and experimentally substantiate the method and hardware of the use the ellipsoidal reflectors for photometry of light scattering by biological media in the detection of their optical properties and identification of physical and physiological state. A fundamental basis for solving this problem is the first-time developed mechanism of ray-tracing, which colligate the parameters of the radiation source, biological media, ellipsoidal reflector and matrix photodetector in the information-measuring system of biomedical photometer, which allows to solve the direct and inverse problems of light propagation by the Monte Carlo statistical simulation. The main content of the thesis is outlined in eight chapters, which present and substantiate the goal and results of the work. The first chapter presents the results of analytical review and literary search, which reveal the tasks raised in the doctorate thesis. In particular, the methods of biophotonics that are most commonly used in the study of different biological media are given. The features of optical radiation propagation in biological media are analyzed, as well as the basic principles of the transfer radiative theory, which mathematically and analytically interpret this process. Typical photometric tools used for the study of biological media, boundary conditions of their use, and functional limitations are analyzed. The second chapter is devoted to the development a method of investigation the biological media optical properties. Structural schemes of basic photometers with ellipsoidal reflectors and features of their functioning are presented. The mathematical apparatus for calculating the ray tracing in a reflector with an internal ellipsoidal reflecting surface is presented, and the main types of ray trajectories are considered. The algorithm of the proposed mechanism of ray tracing and the features of its software are presented. The results of aberration analysis of ellipsoidal reflector are shown. The third chapter is devoted to the development of Monte Carlo models of light propagation in the information-measuring system of biomedical photometer with ellipsoidal reflectors. The features of the input data formation and the basic simulation algorithm are substantiated, as well as the boundary conditions of simulation. The analytical models of software adaptation of radiation source parameters, the receiving system, as well as the boundaries and scattering-absorption properties of the biological media that underlie the simulation are presented. The principles of determination the optical coefficients, algorithm and grounds of software implementation of Monte Carlo simulation in the system "radiation source + biological media + measuring tool" are presented. In the fourth chapter proposed the features of designing photometers with ellipsoidal reflectors by improving the standard equipment for microscopy, as well as in the construction of individual prototypes. Schemes of zone analysis at processing of photometric images obtained by photometry by ellipsoidal reflectors are considered. Mathematical and analytical aspects of solving the inverse problem of the radiative transfer theory by methods of Kubelka-Munk and inverse Monte-Carlo in the context the work of biomedical photometers with ellipsoidal reflectors operating in reflected and also in reflected and transmitted light are presented. The interrelation of photometric images and optical properties of the investigated biological media is considered. In the fifth chapter discusses the technological principles of ellipsoidal reflectors production and control. The materials choice of ellipsoid for different methods of shaping the aspherical surface is substantiated. The principles of production of metallic mirror ellipsoids of revolution using vertical-boring technology, as well as 3D printing technology from plastic are formulated. Practical aspects of applying a mirror coating to the inner ellipsoidal surface from plastic are determined. The analytical model and technical stages the shape control of the ellipsoidal surface are presented and photometric comparison of the functioning of reflectors produced by different technologies is made. The sixth chapter is devoted to the analysis of the effects of light scattering in the system "radiation source + biological media + measuring tool" for different profiles of energy distribution in the laser beam and their effect on the relative illuminance distribution of photometric image at zone analysis for different layers of human skin. The influence the parameters of ellipsoidal reflectors on the boundary geometric properties of optical radiation in the forward and backscattered light is considered. The influence the diameter and power of the incident beam at the tasks of Raman spectroscopy by ellipsoidal reflectors is also substantiated. In the seventh chapter features of application the photometry by ellipsoidal reflectors for creation and improvement tools of biological and medical diagnostics and control are shown. The influence of the scattering anisotropy factor on the illuminance of photometric images and the possibility of biomedical goniophotometry were evaluated. A measurement system for angular photometry in backscattered light was developed and investigated. Based on the model experiment, the prospects of using a photometer with ellipsoidal reflectors to control the optical clearing of human skin were evaluated. A prototype optical non-invasive glucometer with ellipsoidal reflectors was created and its functional features were investigated. The eighth chapter discusses the prospects of applying the mirror ellipsoids of revolution method for various problems in optical biomedical diagnostics.
В работе решен комплекс задач, позволивший решить важную научно-прикладную проблему разработки метода построения и применения эллипсоидальных рефлекторов в системах регистрации и анализа рассеянного оптического излучения, а также апробации новых конструктивных, функциональных и медико-биологических решений. Это позволило теоретически и экспериментально обосновать метод и аппаратные средства применения эллипсоидальные рефлекторов для фотометрии светорассеяния биологическими средами при обнаружении их оптических свойств и идентификации физического и физиологического состояния. Предложено фундаментальную основу решения указанной проблемы за счет впервые разработанного механизма рей-трейсинга, что взаимно связывает параметры источника излучения, биологической среды, эллипсоидального зеркала и матричного приемника излучения в информационно-измерительной системе биомедицинского фотометра с эллипсоидальными рефлекторами, и который позволяет решать прямую и инверсную задачи распространения оптического излучения методом статистического моделирования Монте-Карло.
Shieh, Chi-Shin, and 謝志欣. "Methods of optical measurements based on the reflection of a double-ellipsoid structure." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/47062605517128048422.
Full text國立中山大學
物理學系研究所
99
In this study, a double-ellipsoid structure is proposed for measurements of optical properties of liquid-crystal displays (LCDs). By using the double-ellipsoid structure, light dispersion and measurement time, which occurs during the measurement of optical properties of LCDs, can be greatly reduced. The system also significantly decreases reflective loss on interface, increasing the accuracy of the measurement. Moreover, by using the conoscopy measured from the proposed structure, light distribution of the dark state along off-axis direction can be analyzed. Based on the analysis, the cell gap and pretilt angle of vertical alignment liquid-crystals (VA-LCs) are evaluated. The proposed structure, which exhibits a fast and high accuracy measurement, is highly promising for future optical measurement of LCDs.
Books on the topic "Ellipsoidal reflector"
Nasr, Mohamed E. The evolution and dynamics of spark generated shock waves and their focusing by ellipsoidal reflectors in lithotripsy. 1986.
Find full textBook chapters on the topic "Ellipsoidal reflector"
Karathanasis, K. T., I. A. Gouzouasis, I. S. Karanasiou, and N. K. Uzunoglu. "Simulation and Experimental Study of an Ellipsoidal Cavity Reflector as part of a Focused Passive Brain Imaging System." In IFMBE Proceedings, 1565–69. Berlin, Heidelberg: Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89208-3_372.
Full textWebster, S. M. "Segre Polar Correspondence and Double Valued Reflection for General Ellipsoids." In Analysis and Geometry in Several Complex Variables, 273–88. Boston, MA: Birkhäuser Boston, 1999. http://dx.doi.org/10.1007/978-1-4612-2166-1_13.
Full textConference papers on the topic "Ellipsoidal reflector"
Petrasch, Jo¨rg, and Aldo Steinfeld. "A Novel High-Flux Solar Simulator Based on an Array of Xenon Arc Lamps: Optimization of the Ellipsoidal Reflector and Optical Configuration." In ASME 2005 International Solar Energy Conference. ASMEDC, 2005. http://dx.doi.org/10.1115/isec2005-76009.
Full textYokota, Osamu, Masaki Nezuka, Yoshinori Oku, Yukitoshi Hosokawa, Jun Matsunami, Yutaka Tamaura, Katsushige Nakamura, and Mitsunobu Kitamura. "Solar Furnace System Using Tower-Reflector with Ellipsoidal Mirror." In 34th Intersociety Energy Conversion Engineering Conference. 400 Commonwealth Drive, Warrendale, PA, United States: SAE International, 1999. http://dx.doi.org/10.4271/1999-01-2671.
Full textHaponiuk, Andrii, Natalia Bezugla, Kostiantyn Vonsevych, Mikhail Bezuglyi, Aliya Zilgaraeva, Piotr Kisala, Saule Luganskaya, and Sandugash Orazalieva. "Blood glucose analysis by Raman spectrophotometer with ellipsoidal reflector." In Photonics Applications in Astronomy, Communications, Industry, and High Energy Physics Experiments 2021, edited by Andrzej Smolarz, Ryszard S. Romaniuk, and Waldemar Wojcik. SPIE, 2021. http://dx.doi.org/10.1117/12.2613340.
Full textZhou, Min, Yasir Alfadhl, and Xiaodong Chen. "Study on a THz image scanning system with ellipsoidal reflector." In 2015 8th UK, Europe, China Millimeter Waves and THz Technology Workshop (UCMMT). IEEE, 2015. http://dx.doi.org/10.1109/ucmmt.2015.7460600.
Full textYing, Shang-Ping, and Jhen-Cyun Lyu. "Ellipsoidal reflector design of the LED vehicle projector type headlamp." In SPIE Optical Engineering + Applications, edited by Matthew H. Kane, Nikolaus Dietz, and Ian T. Ferguson. SPIE, 2016. http://dx.doi.org/10.1117/12.2236827.
Full textJebramcik, Jochen, Jan Barowski, Jonas Wagner, and Ilona Rolfes. "Radar Based Material Characterization at 145 GHz Utilizing an Ellipsoidal Reflector." In 2019 49th European Microwave Conference (EuMC). IEEE, 2019. http://dx.doi.org/10.23919/eumc.2019.8910803.
Full textLOTTATI, ITZHAK, and SHMUEL EIDELMAN. "Acoustic wave focusing in an ellipsoidal reflector for extracorporeal shock-wave lithotripsy." In 23rd Fluid Dynamics, Plasmadynamics, and Lasers Conference. Reston, Virigina: American Institute of Aeronautics and Astronautics, 1993. http://dx.doi.org/10.2514/6.1993-3089.
Full textQiu, Jinghui, Qian Song, and Pengcheng Wang. "Near-Field Focused Off-axis Ellipsoidal Reflector Antenna for Terahertz Defog Camera." In 2021 International Conference on Microwave and Millimeter Wave Technology (ICMMT). IEEE, 2021. http://dx.doi.org/10.1109/icmmt52847.2021.9617984.
Full textChou, Hsi-Tseng, Sheng-Ju Chou, Hsiang-Ting Cheng, Paolo Nepa, and Li-Ruei Kuo. "Design of ellipsoidal reflector antennas for near-field RFID applications at UHF band." In 2017 International Symposium on Antennas and Propagation (ISAP). IEEE, 2017. http://dx.doi.org/10.1109/isanp.2017.8228925.
Full textTuan, Shih-Chung, and Hsi-Tseng Chou. "A time domain analysis of ellipsoidal reflector antennas illuminated by transient-step feed radiation." In 2012 Asia-Pacific Symposium on Electromagnetic Compatibility (APEMC). IEEE, 2012. http://dx.doi.org/10.1109/apemc.2012.6237904.
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