| 주 저자 | Kim, Yu-Sin. |
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| 공동 저자 | A.S. Choi, J.W. Jeong. |
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| 소속 | Department of Architectural Engineering, Sejong University, Kunja-Dong, Kwangjin-Gu, Seoul, Korea 143?747 |
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| Abstract | LED lighting is often presented as the lighting technology of
the future. Yet there are differences in the luminous intensity
distributions between luminaires that employ conventional light sources
and those that employ LEDs. The optical engineer faces a new
challenge of designing for a spatially extended and nonuniform light
source. Consequently, a new approach is needed for the optical design
of planar LED luminaires. Luminaire optical design is typically
performed using a combination of ray-tracing and trial-and-error
experimentation with the goal of obtaining a target luminous intensity
distribution. The number of iterations can be reduced by utilizing
optimization algorithms. This study aimed to develop a numerical
model for luminous intensity distribution of planar prism LED
luminaires and apply the optimization algorithm for prism angle design.
A calculation process for the prism optical design of a planar prism LED
luminaire was developed. To assess the accuracy of the numerical
model, a comparison was performed between results from the
numerical model and Photopia 2.0. This study also illustrates a method
of the application of unit prism angle zones for the control of luminous
intensity distributions. As a next step, the numerical model could be
extended to optimize prism angle for a target luminous intensity
distribution. |
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| Keyword | Optical design, planer prism LED luminaire, refractor,
prism, ray-tracing |
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| 페이지 | pp. 57~72 |
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| 논문 파일 |
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| 게재일시 |
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| DOI | - |
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| 학회/저널명 | LEUKOS Vol.9, No.1 |
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| 년도 | 2012 |
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| 추가 문구 | http://dx.doi.org/10.1582/LEUKOS.2012.09.01.004 |
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| 등록 일시 | 2025-06-18 13:37:19 |
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