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http://dx.doi.org/10.5207/JIEIE.2007.21.6.026

The Developement of Secondary Optics Design Method for LED  

Jung, Seung-Gyun (강원대학교 전기전자공학과)
Seok, Dae-Il (강원대학교 일반대학원 전기전자공학과)
Shin, Hwa-Young (한국전력기술인협회 회원지원처)
Lee, Chang-Mo (강원대학교 일반대학원 전기 공학과)
Kim, Hoon (강원대학교 공과대학 전기전자 정보통신 공학부)
Publication Information
Journal of the Korean Institute of Illuminating and Electrical Installation Engineers / v.21, no.6, 2007 , pp. 26-32 More about this Journal
Abstract
Design methods of LED optic system includes point source assumption and imaginary focus approaches. However, these methods make significant error if the position of LED approachs that of optic system. This paper suggests a new design approach that LED is equally divided, light distribution of each division is predicted and confirmed through reverse tracing of light wave, and then each divided segment is separately designed, Using new design method, two kinds of example optic system were designed and light distribution and efficiency of the systems were evaluated.
Keywords
LED; Optics; Lens; Prism; Focal smear;
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  • Reference
1 'Secondary Optics Design Considerations for SuperFlux LEDs', Lumileds사의 기술 자료, http://lumileds.com
2 R. H. Simons and A. R. Bean, 'Light Engineering Applied Calculations', Plant a Tree, 2001