Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2009.11a
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- Pages.19-19
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- 2009
Modeling and Optical Characteristics of LED-Lighting Adopting Aspherical Lens
- Lee, Hak-Suk (Chosun Univ.) ;
- Park, Jong-Rak (Chosun Univ.) ;
- Kim, Min-Jae (Chonnam Univ.) ;
- Kim, Hye-Jung (Ultra Precision Optical Team(KOPTI)) ;
- Kim, Jung-Ho (Ultra Precision Optical Team(KOPTI))
- Published : 2009.11.12
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 multiplying and 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, a yellow belt, unpleasant feeling in human eye. As a potential solution of this problem, aspherical lens can be employed. This study reports the improvement of LED-lighting performance by adopting aspherical lens. From the commercial program,