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Journal of the Optical Society of Korea v.11 no.3, 2007년, pp.113 - 117   피인용횟수: 4

LED Light Coupler Design for a Ultra Thin Light Guide

Lee, J.H.    (Dept. of Optical Engineering, Kongju National Univ.   ); Chang, W.    (Korea Institute of Machinery & Materials   ); Choi, D.    (Korea Institute of Machinery & Materials  );
  • 초록

    A LED light coupler is proposed for coupling light from a mini side LED of 0.4 mm height to a very thin ( ${\sim}0.3 mm$ ) light guide. Due to the ultra thinness of the light guide, conventional light couplings between LEDs and light guides do not provide adequate coupling efficiency. The designed LED coupler is a compound lens of 3.5 mm length, 1.2 mm height, and 3.3 mm width. The courier first collimates the light from the LED and then concentrates the light in a manner similar to a compound parabolic concentrate, (CPC) into the light guide. The exit surface of the coupler is additionally textured to have micro patterns in order to control the radiance profile.


  • 참고문헌 (20)

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  • 이 논문을 인용한 문헌 (4)

    1. Lee, Yun-Mi ; Lee, Jun-Ho ; Jeon, Eun-Chae 2010. "A Study on an Integrated Light Guide Plate" 한국광학회지 = Korean journal of optics and photonics, 21(2): 53~60     
    2. Hong, Dae-Woon ; Lee, Song-Jae 2010. "A Study on High Power LED Lamp Structures" 한국광학회지 = Korean journal of optics and photonics, 21(3): 118~122     
    3. Seo, Jae-Seok ; Ko, Jae-Hyeon 2011. "Study on the Optimization of the Optical Structure of Lenticular-Lens Films for LCD Backlight Applications" 한국광학회지 = Korean journal of optics and photonics, 22(6): 247~255     
    4. 2011. "" Journal of the Optical Society of Korea, 15(1): 44~51     

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