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Journal articles on the topic 'Goniophotometr'

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1

Jose, D. J., N. R. S. Hollies, and S. M. Spivak. "Instrumental Techniques to Quantify Textural Change in Carpet Part II: Goniophotometry." Textile Research Journal 58, no. 4 (April 1988): 185–90. http://dx.doi.org/10.1177/004051758805800401.

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Further work on carpet appearance change is reported, focusing on new textural measurements of carpet pile. These techniques have included image analysis, goniophotometry, and densitometry. A set of specially prepared saxony-type polyester carpet constructions were tested, both as unworn controls and service-worn to 60,000 steps of foot traffic. In Part II of this series, the results of goniophotometry, i.e. variable angle reflectometry, are reported. Techniques are presented to generate goniophotometric reflectance curves, which can be analyzed for directional pile lay in carpet. These techniques appear promising in characterizing certain changes in pile shading and wear patterns, both in unworn and service-worn carpet.
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2

Rosemann, A., S.-H. Kloss, T. Müller, S. Aydinli, and H. Kaase. "The photometry of hollow light guides." Lighting Research & Technology 37, no. 1 (March 2005): 60–72. http://dx.doi.org/10.1191/1365782805li129oa.

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Light-pipes described in this paper guide light along an axis allowing it to escape from its surface for illumination purposes. Light is coupled into them by a beamer luminaire. The performance of a hollow light guide very much depends on the quality of the materials used to guide the light. The luminous characteristics of these materials influence a light-pipe’s overall performance. The first section of this paper describes measurement techniques for light incidence resolved measurements on materials. Common co-ordinate systems for describing the geometry and a data format to store the data are shown. The second section of this paper deals with light-pipe goniophotometry. A goniophotometer for light-pipes has been constructed at the Technical University of Berlin. To evaluate the results measurements are compared to these from a real installation.
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3

Muñoz-Martínez, V. F., J. Serón-Barba, R. Molina-Mesa, J. M. Gómez-de-Gabriel, J. Fernández-Lozano, and A. García-Cerezo. "Double reflection goniophotometer." Metrologia 43, no. 3 (February 21, 2006): 185–94. http://dx.doi.org/10.1088/0026-1394/43/3/001.

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4

Lindemann, M., R. Maass, and G. Sauter. "Robot goniophotometry at PTB." Metrologia 52, no. 2 (February 5, 2015): 167–94. http://dx.doi.org/10.1088/0026-1394/52/2/167.

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5

Apian-Bennewitz, Peter, and Jochen von der Hardt. "Enhancing and calibrating a goniophotometer." Solar Energy Materials and Solar Cells 54, no. 1-4 (July 1998): 309–22. http://dx.doi.org/10.1016/s0927-0248(98)00082-8.

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6

Dlugunovich, V. A., L. N. Nasennik, V. N. Snopko, and O. V. Tsaryuk. "Laser Goniophotometric Mueller Polarimeter." Measurement Techniques 46, no. 12 (December 2003): 1145–50. http://dx.doi.org/10.1023/b:mete.0000018723.84121.4b.

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7

Dlugunovich, V. A., V. N. Snopko, and O. V. Tsaryuk. "Laser goniophotometric stokes polarimeter." Journal of Applied Spectroscopy 66, no. 6 (November 1999): 1009–16. http://dx.doi.org/10.1007/bf02675213.

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8

Dlugunovich, V. A., L. V. Simonchik, V. N. Snopko, and O. V. Tsaryuk. "Goniophotometric laser Stokes-polarimeter." Measurement Techniques 43, no. 1 (January 2000): 31–37. http://dx.doi.org/10.1007/bf02503614.

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9

Lee, Jetter, Lanh-Thanh Le, Hien-Thanh Le, Hsing-Yuan Liao, Guan-Zhi Huang, Hsin-Yi Ma, Chan-Chuan Wen, et al. "Low-Glare Freeform-Surfaced Street Light Luminaire Optimization to Meet Enhanced Road Lighting Standards." International Journal of Optics 2020 (August 28, 2020): 1–12. http://dx.doi.org/10.1155/2020/5683264.

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To enhance driving safety at night, a new freeform-surface street light luminaire was proposed and evaluated in this study that meets the requirements of the International Commission on Illumination (CIE) M3 class standard for road lighting. The luminaire was designed using simulations to optimize the location of the bulb according to the requirements of the standard. The light source IES file was experimentally obtained for the optimized luminaire prototype with a 150 W ceramic metal halide lamp using an imaging goniophotometer. The trial road lighting simulation results computed by the lighting software DIALux indicated that the proposed luminaire provided an average road surface brightness of 1.1 cd/m2 (compared to a minimum requirement of 1.0 cd/m2), a brightness uniformity of 0.41 (compared to a minimum requirement of 0.4), a longitudinal brightness uniformity of 0.64 (compared to a minimum requirement of 0.6), and a glare factor of 7.6% (compared to a maximum limit of 15%). The findings of the image goniophotometer tests were then confirmed by the results of a certified mirror goniophotometer test conducted by the Taiwan Accreditation Foundation (TAF). The results of this study can be used to provide improved street lighting designs to meet enhanced international standards.
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10

López, M., K. Bredemeier, N. Rohrbeck, C. Véron, F. Schmidt, and A. Sperling. "LED near-field goniophotometer at PTB." Metrologia 49, no. 2 (March 2, 2012): S141—S145. http://dx.doi.org/10.1088/0026-1394/49/2/s141.

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11

Muñoz, V. F., J. Gómez-de-Gabriel, J. Fernández-Lozano, R. Molina-Mesa, and J. Serón-Barba. "AN AUTOMATED GONIOPHOTOMETER FOR LUMINAIRE CHARACTERIZATION." IFAC Proceedings Volumes 35, no. 1 (2002): 103–8. http://dx.doi.org/10.3182/20020721-6-es-1901.01485.

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12

Sauter, G. "Goniophotometry: new calibration method and instrument design." Metrologia 32, no. 6 (December 1, 1995): 685–88. http://dx.doi.org/10.1088/0026-1394/32/6/58.

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13

Nadal, Maria E., and E. Ambler Thompson. "NIST reference goniophotometer for specular gloss measurements." Journal of Coatings Technology 73, no. 6 (June 2001): 73–80. http://dx.doi.org/10.1007/bf02698400.

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14

Elton, N. J., L. F. Gate, and J. J. Hooper. "Texture and orientation of kaolin in coatings." Clay Minerals 34, no. 1 (March 1999): 89–98. http://dx.doi.org/10.1180/000985599546109.

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AbstractX-ray diffraction (XRD), infra red (IR) spectroscopy, gloss goniophotometry and stylus profilometry were used to investigate the alignment of kaolinite applied as a thin coating on a polyester film substrate. The principles and applicability of the analytical methods are reviewed and discussed in the context of a kaolinite coating. X-ray diffraction and transmission IR were used to measure kaolinite misalignment and orientation distribution in the coating. Transmission IR measures the coating bulk; XRD data are surface biased, but contain contributions from the bulk. Attenuated total reflectance-IR (ATR-IR) provides a direct measure of kaolinite alignment within ~1 µm of the coating surface and also allows an assessment of surface smoothness. Gloss goniophotometry and contact profilometry measure surface microroughness and macroroughness, respectively, rather than kaolinite particle orientation. However, the properties of roughness and orientation are related. Bulk and surface texture are not necessarily correlated and a combined approach using both bulk and surface sensitive techniques is required for a full understanding of coating structure.
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15

Prytkov, Sergei V., Sergei S. Kapitonov, and Alexei S. Vinokurov. "A Refinement Of The Determination Method Of The Linear low-pressure Uv Lamps Radiant Flux." Light & Engineering, no. 01-2021 (February 2021): 104–14. http://dx.doi.org/10.33383/2020-062.

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For the measurement of linear low-pressure UV lamps radiant flux the method proposed by the IUVA, which is based on the Keitz method, has become widely used. For deriving the equation that connects the irradiance generated by a lamp at a close distance and its radiant flux, the authors of the method presume that the lamp is the cylinder of equal radiance. According to our estimates, this assumption leads to the inaccuracy of 3 % to 5 % with respect to goniophotometric measurements. In this research, a general formula is derived that connects the irradiance generated by a linear emitter and its radiant flux. This formula does not impose restrictions on the radiant intensity curve in the longitudinal plane. The Keitz equation is its particularcase. To reduce the inaccuracy of the IUVA method, the angular distribution of the radiant intensity of the UV lamps is proposed to be approximated by a cosine polynomial. In order to find the coefficients of the polynomial,clarify the Keitz formula, as well as to estimate the inaccuracy of the refined and classical versions of this formula, the series of goniophotometric measurements of the DB15, DB18, DB30 lamps at various distances was carried out. It was found that at a scanning step Δθ = 5° the first 9 terms of the trigonometric expansion are sufficient to describe the radiant intensity curve with accuracy satisfactory for practical use. It was also shown that the Keitz method needs to be refined only on the basis of goniophotometric data obtained upon condition r / l ≥ 6 where r is the test distance, l is the lamp length. It was identified that in the case of a differentiated approach, the approximation of the low-pressure UV lamps radiant intensity curve by a cosine polynomial makes it possible to provide an inaccuracy of simplified methods that does not exceed 1 % in relation to the goniophotometric method. It is in dicated that in order to find a universal factor applicable for the entire range of linear low-pressure UV lamps, the development and the analysis of statistical data is required.
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16

Muto, Nobuo, Koji Nihira, Tuneyo Tsuboi, and Toshihiro Gunji. "Computer Simulation on Goniophotometric Curves of Fabrics." Sen'i Kikai Gakkaishi (Journal of the Textile Machinery Society of Japan) 38, no. 5 (1985): T102—T110. http://dx.doi.org/10.4188/transjtmsj.38.5_t102.

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17

Muto, Nobuo, Toshihiko Arai, Koji Nihira, Tsuneyo Tsuboi, and Toshihiro Gunji. "Computer Simulation of Goniophotometric Curves for Fabrics." Journal of the Textile Machinery Society of Japan 31, no. 4 (1985): 86–89. http://dx.doi.org/10.4188/jte1955.31.86.

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18

Muto, Nobuo, Koji Nihira, Tuneyo Tuboi, Toshihiko Arai, and Toshihiro Gunji. "Computer Simulation of Goniophotometric Curves for Fabrics." Journal of the Textile Machinery Society of Japan 34, no. 2 (1988): 31–38. http://dx.doi.org/10.4188/jte1955.34.31.

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19

Muto, Nobuo, Koji Nihira, Tsuneyo Tsuboi, Toshihiko Arai, and Toshihiro Gunji. "Computer Simulation of Goniophotometric Curves for Fabrics." Journal of the Textile Machinery Society of Japan 34, no. 1 (1988): 7–12. http://dx.doi.org/10.4188/jte1955.34.7.

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20

Schmähling, Franko, Gerd Wübbeler, Marco Lopez, Frank Gassmann, Udo Krüger, Franz Schmidt, Armin Sperling, and Clemens Elster. "Virtual experiment for near-field goniophotometric measurements." Applied Optics 53, no. 7 (February 28, 2014): 1481. http://dx.doi.org/10.1364/ao.53.001481.

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21

Hai Yang, 海洋, 杨道国 Yang Daoguo, and 侯峰泽 Hou Fengze. "Secondary Optical Simulation of LED Based on Goniophotometer Experiment." Laser & Optoelectronics Progress 49, no. 3 (2012): 032302. http://dx.doi.org/10.3788/lop49.032302.

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22

Hasegawa, Kazuo. "Precision Mirror-type Goniophotometer(Photometric Measurements for LED Lighting)." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 97, no. 3 (March 1, 2013): 157–60. http://dx.doi.org/10.2150/jieij.97.157.

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23

Shitomi, Hiroshi, and Ichiro Saito. "Absolute Total Luminous Flux Measurement Using a New Goniophotometer." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 87, Appendix (2003): 189. http://dx.doi.org/10.2150/jieij1980.87.appendix_189.

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24

Bizjak, G., M. Lindemann, A. Sperling, and G. Sauter. "Determination of stray light at the PTB goniophotometer facility." MAPAN 24, no. 3 (September 2009): 163–73. http://dx.doi.org/10.1007/s12647-009-0020-z.

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25

Nakazawa, Yuri, Kenji Godo, and Tatsuya Zama. "Investigation of Calculation Method for Total Luminous Flux with Goniophotometry." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 100, no. 2 (2016): 67–73. http://dx.doi.org/10.2150/jieij.100.67.

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26

Ohno, Yoshihiro, Kenichi Suzuki, and Hideo Nishiyama. "Absolute measurement of Bidirectional Reflectance Distribution Function by a goniophotometer." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 73, Appendix (1989): 93. http://dx.doi.org/10.2150/jieij1980.73.appendix_93.

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27

Andersen, M. "Validation of the performance of a new bidirectional video-goniophotometer." Lighting Research & Technology 38, no. 4 (December 2006): 295–311. http://dx.doi.org/10.1177/1477153506071332.

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28

Bruchkouski, I. I., V. A. Siliuk, H. S. Litvinovich, A. A. Lamaka, V. V. Stanchuk, and S. I. Guliaeva. "Goniophotometer for Measurements of Spectral Reflectance Coefficients and Transmission Spectra." Journal of Applied Spectroscopy 88, no. 2 (May 2021): 363–69. http://dx.doi.org/10.1007/s10812-021-01183-7.

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29

Krishnaswamy, Aravind, Gladimir V. G. Baranosk, and Jon G. Rokne. "Improving the Reliability/Cost Ratio of Goniophotometric Comparisons." Journal of Graphics Tools 9, no. 3 (January 2004): 1–20. http://dx.doi.org/10.1080/10867651.2004.10504894.

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30

Stokes, Eleanor C., Nicholas Gayeski, and Marilyne Andersen. "Estimating spectral information of complex fenestration systems in a video-goniophotometer." Lighting Research & Technology 40, no. 4 (December 2008): 269–85. http://dx.doi.org/10.1177/1477153508092003.

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31

Jacobs, V., S. Forment, P. Rombauts, and P. Hanselaer. "Near-field and far-field goniophotometry of narrow-beam LED arrays." Lighting Research & Technology 47, no. 4 (April 8, 2014): 470–82. http://dx.doi.org/10.1177/1477153514530139.

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32

Tiranov, D. T., I. D. Mikhailov, V. G. Kaplan, I. A. Nepogodin, and V. L. Filippov. "Laser goniophotometer–polarimeter for investigating the reflective characteristics of structural materials." Journal of Optical Technology 82, no. 9 (September 1, 2015): 617. http://dx.doi.org/10.1364/jot.82.000617.

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33

Lindemann, Matthias, and Robert Maass. "Photometry and colorimetry of reference LEDs by using a compact goniophotometer." MAPAN 24, no. 3 (September 2009): 143–52. http://dx.doi.org/10.1007/s12647-009-0018-6.

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34

Andersen, Marilyne, and Jan de Boer. "Goniophotometry and assessment of bidirectional photometric properties of complex fenestration systems." Energy and Buildings 38, no. 7 (July 2006): 836–48. http://dx.doi.org/10.1016/j.enbuild.2006.03.009.

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35

Mitanchey, R., G. Periole, and M. Fontoynont. "Goniophotometric measurements : Numerical simulation for research and development applications." Lighting Research and Technology 27, no. 4 (December 1, 1995): 189–96. http://dx.doi.org/10.1177/14771535950270040101.

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36

Neyezhmakov, P., E. Tymofeiev, and О. Lyashenko. "Photometer for Measuring the Characteristics of the Light Source with Directed Light Radiation." Metrology and instruments, no. 4 (August 30, 2018): 27–32. http://dx.doi.org/10.33955/2307-2180(4)2018.27-32.

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The accuracy of the measurement of the main photometric characteristic of the emitter determines the error for determining the total light flux of the light sources, especially light emitting diodes, for which it should not exceed 5 per cent. Existing measurement methods with the use of integrated spheres, goniophotometers and goniophotometers of the near field require a great deal of time and have a great deal of value. To eliminate these shortcomings, a method for measuring the characteristics of light sources with directed light distribution is proposed based on the use of a set of meters located in a plane perpendicular to the main direction of the source radiation propagation. On the basis of this method, a photometer for measuring the characteristics of the directional light sources is developed, which allows to quickly, in real time, determine the characteristics of the emitters. The method of determining the parameters of light distribution of directed sources of light for the construction of its photometric body is not required to use a rotary means. Taking into account the significant influence of temperature fluctuations on the characteristics of LED light sources, it is possible will upgrade the proposed method for determining the photometric body of the radiation source in real time and when the temperature changes due to the introduction of additional elements in the future.
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37

Fan Hongzhong, 范红忠, 曹民 Cao Min, 李抒智 Li Shuzhi, 杨卫桥 Yang Weiqiao, and 钱晶 Qian Jing. "Application and Investigation of Near-Field Goniophotometer Measurements in LED Optical Design." Acta Optica Sinica 32, no. 12 (2012): 1222001. http://dx.doi.org/10.3788/aos201232.1222001.

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38

Swatland, H. J. "Measurements of Light Scattering in Normal Pork Using a Fiber-Optic Goniophotometer." Journal of Animal Science 66, no. 10 (1988): 2578. http://dx.doi.org/10.2527/jas1988.66102578x.

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39

Karamata, Boris, and Marilyne Andersen. "Origin and nature of measurement bias in catadioptric parallel goniophotometers." Journal of the Optical Society of America A 31, no. 5 (April 11, 2014): 1040. http://dx.doi.org/10.1364/josaa.31.001040.

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40

Liberman, A. A., and E. S. Rapoport. "Goniophotometric device for measuring spatial scattering functions for laser radiation." Measurement Techniques 31, no. 1 (January 1988): 25–26. http://dx.doi.org/10.1007/bf00865755.

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41

Popp, Valerie, Philipp Ansorg, Burkhard Fleck, and Cornelius Neumann. "Temporal coherence properties of laser modules used in headlamps determined by a Michelson interferometer." Advanced Optical Technologies 9, no. 6 (December 16, 2020): 375–83. http://dx.doi.org/10.1515/aot-2020-0039.

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AbstractIn this work, an investigation of the temporal coherence properties of radiation which is emitted by laser modules integrated in headlamps is presented. The motivation for these measurements was difficulties concerning the field of classification for laser products which function as conventional headlamps. Based on an experimental setup including a Michelson interferometer, a goniophotometer and a spectrometer, coherence lengths of 92.5 and 147.0 μm are obtained for two different laser modules. The results show that the temporal coherence of the examined radiation is appreciably higher than the temporal coherence of conventionally produced white light. Therefore, at this point in time, laser modules used in headlamps cannot be considered as customary white light sources.
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42

Gomes, Juliana Freitas Santos, Ivo Antônio Ázara de Oliveira, André da Silva Sardinha, Domingos David Viana, Rafaela Rezende Vieira, Amanda Hang Barbosa, and Ana Paula Dornelles de Alvarenga. "Spectral measurements of light sources with a goniophotometer with and without mirror arrangement." Journal of Physics: Conference Series 733 (July 2016): 012025. http://dx.doi.org/10.1088/1742-6596/733/1/012025.

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43

Godo, Kenji, Kazuki Niwa, Kenichi Kinoshita, Yoshiro Ichino, and Tatsuya Zama. "Realization of total spectral radiant flux scale at NMIJ with a goniophotometer/spectroradiometer." Metrologia 53, no. 2 (March 9, 2016): 853–59. http://dx.doi.org/10.1088/0026-1394/53/2/853.

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44

Cai, Wentao, Xianming Liu, Xiaohua Lei, and Weimin Chen. "Analysis of misalignment-induced measurement error for goniophotometry of light-emitting diode arrays." Applied Optics 52, no. 34 (November 25, 2013): 8381. http://dx.doi.org/10.1364/ao.52.008381.

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45

Choi, Sun Kyung, Young Jun Yang, Kyung Nam Kim, Jaewook Choi, Yeong Jin Choi, and Sang Hoon Han. "A Study of the Optical Properties of Cosmetics Measured by Polarized Light Goniophotometry." Journal of the Optical Society of Korea 16, no. 1 (March 25, 2012): 36–41. http://dx.doi.org/10.3807/josk.2012.16.1.036.

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46

Audenaert, Jan, Paula C. Acuña R., Peter Hanselaer, and Frédéric B. Leloup. "Practical limitations of near-field goniophotometer measurements imposed by a dynamic range mismatch." Optics Express 23, no. 3 (January 28, 2015): 2240. http://dx.doi.org/10.1364/oe.23.002240.

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47

Kumazawa, Kinya, Hidekazu Takahashi, Hiroshi Tabata, Mie Yoshimura, Susumu Shimizu, and Takeshi Kikutani. "Goniophotometric Reflection Properties of Interference-Colored Fiber with the Alternating Multilayer." FIBER 58, no. 6 (2002): 195–201. http://dx.doi.org/10.2115/fiber.58.195.

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48

Chander, M., T. K. Chakraverty, and K. C. Joshi. "Goniophotometric calibration of tubular light sources in vertical and horizontal geometry." Lighting Research & Technology 23, no. 1 (March 1991): 89–90. http://dx.doi.org/10.1177/096032719102300106.

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49

Suslik, Lubos, Jaroslava Skriniarova, Jaroslav Kovac, Dusan Pudis, Anton Kuzma, and Jaroslav Kovac. "Complex Analysis of Emission Properties of LEDs with 1D and 2D PhC Patterned by EBL." Coatings 10, no. 8 (July 30, 2020): 748. http://dx.doi.org/10.3390/coatings10080748.

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In this paper, we present the optical and electrical properties of surface-patterned GaAs-based Multiquantum Well (MQW) light emitting diodes (LEDs) with one- and two-dimensional photonic crystal (PhC) structures. Optical properties were analyzed in the near and far field, measured by a near-field scanning optical microscope and with a goniophotometer. We demonstrated a strong effect of patterned PhC on the radiation properties and the light extraction efficiency. Enormous surface emission enhancement reaching 110% confirmed the strong effect of the patterned structure on the coupling of the guided modes into the surface emission. Additionally, the considerable effect of the PhC structure diffraction on radiation pattern was confirmed in the near and far field and is in good agreement with the simulated shape of the optical field.
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50

Knowles, J. C., and G. W. Hastings. "Simple computer controlled goniophotometer for the measurement of early stage changes in biodegradable polymers." Journal of Biomedical Engineering 12, no. 2 (March 1990): 102–4. http://dx.doi.org/10.1016/0141-5425(90)90128-a.

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