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http://dx.doi.org/10.4313/JKEM.2009.22.12.1033

A Study on Optical Efficiency Improvement of LED-lighting Adopting Aspherical Optical System(I)  

Lee, Hak-Suk (조선대학교 광기술공학과)
Park, Jong-Rak (조선대학교 광기술공학과)
Kim, Min-Jae (전남대학교 광공학협동과정)
Kim, Hye-Jeong (한국광기술원 초정밀광학팀)
Kim, Jeong-Ho (한국광기술원 초정밀광학팀)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.22, no.12, 2009 , pp. 1033-1038 More about this Journal
Abstract
Recently, Light Emitting Diode (LED) has many advantages in comparison with conventional light sources; low power consumption, long lifetime, and less environmental pollution. Therefore, the use of LED is increasing rapidly. In general, however, spherical lens is used in LED-lighting which cause many problems induces by optical aberration of spherical lens; low illumination, yellow belt, unpleasant feeling in human eye. As a solution of these problem, aspherical lens can be employed. This study reported the improvement of LED-lighting performance by adopting aspherical lens. From the commercial program, $LightTools^{TM}$, the optical problem were ensured. And then, to improve these problem, optimum aspheric form was designed using Code $V^{TM}$.
Keywords
Light emitting diode(LED); Aspherical lens; Aberration; Optical design;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
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