Browse > Article
http://dx.doi.org/10.7735/ksmte.2012.21.3.487

A Study on the LED Spotlight with a High Power using an Aspherical Optical System  

Moon, Jae-Il (한국산업기술대학교 광나노전공)
Yoo, Kyung-Sun (한국산업기술대학교 광나노전공)
Hyun, Dong-Hoon (한국산업기술대학교 광나노전공)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.21, no.3, 2012 , pp. 487-492 More about this Journal
Abstract
In this study we researched a spotlight in LED lighting. Ordinary LED spotlight was manufactured with characterized property of traveling straightness of LED light source, but multiple use of shell type LED, a yellow band has formed caused by light source interference between the LED. Also, there was a high miscellaneous light efficiency with losing light source homogeneity and efficiency due to light source control uneasiness. The study uses aspheric reflector and aspheric lens, so we can control the light source of LED spotlight with effectively and we reached surface light source by using COB/COM for LED module. Furthermore it can change its use by a reduced scale of light system. It has been designed to make its various application from low power consumption of bicycle lamp, up to high power consumption of automobile lamps and lighthouse.
Keywords
LED; Illumination; Spotlight; Reflector; LED Lens; Light uniformity;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Shin, K. H., Song, S. B., and Yeo, I. S., 2004, "The Design of Lens for Power LEDs Spotlight," 2004 KIIE Conference, pp. 145-150.
2 Chung, I. H., 2012, Study on Improvement of the Luminous Intensity Uniformity using Aspheric Reflector Optical LED Lighting, A Thesis for a Doctorate, Korea Polytechnic University, Republic of Korea.
3 Lee, S. G., Kim, B. T., Shin, S. M., Kim, S. Y., Kim, J. Y., and Hyun, D. H., 2011, "A Study about a 3W High Power LED Spotlight using an Aspherical Optical System," KSMTE Spring Conference 2011, pp. 94-95.
4 Kim, D. J., Yoo, K. S., and Hyun, D. H., 2010, "An Research on Ultra Precisive Polishing Manufacturing Technology of Glass for Micromini and Super Wideangle Aspherics Glasses Lens," Journal of the KSMTE, Vol. 19, No. 2, pp. 275-281.
5 Chung, I. H., Yoon, C. Y., Ye, I. S., and Hyun, D. H., 2011, "A Study of Aspheric Mirror Optical Design to Improve Luminous Intensity Uniformity of LED Security Lights," Journal of the KSMTE, Vol. 20, No. 1, pp. 114-119.   과학기술학회마을
6 Noh, M. J., 2012, The Study of LED Indoor Light with ID-Function, A Master's Thesis, Korea Polytechnic University, Republic of Korea.