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한국생산제조학회 학술지 영문 홈페이지
[ Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 29, No. 2, pp.127-133
ISSN: 2508-5107 (Online)
Print publication date 15 Apr 2020
Received 21 Feb 2020 Revised 07 Apr 2020 Accepted 13 Apr 2020
DOI: https://doi.org/10.7735/ksmte.2020.29.2.127

균제도 구현을 위한 비구면 조명렌즈 설계 연구

김세민a, * ; 박정우a ; 전언찬b
Design of an Aspherical Illumination Lens for Realization of Uniformity
Se Min Kima, * ; Joung Woo Parka ; Eon Chan Jeonb
aDepartment of Mechanical Engineering, Graduate School, Dong-A UNIV.
bDepartment of Mechanical Engineering, Dong-A UNIV.

Correspondence to: *Tel.: +82-51-200-6992 E-mail address: semin.kim75@gmail.com (Se Min Kim).

Abstract

This paper discusses the design and application of an aspherical lens to increase the light uniformity of light source modules having a light emitting diode (LED) on their bottom surface. Lenses are designed based on the light emission of the LED light source. However, as the actual light emission of the LEDs differs from the theoretical one, we modified the profile of the designed lens. Additionally, a study was conducted to increase the light uniformity through a light source simulation program using the modified profile. An aspherical lens was used in conjunction with a COB (Chip-On-Board) LED light source, resulting in an increase in the uniformity value to 0.93.

Keywords:

Uniformity (Emin/Em (Uo)), Aspheric lens, Simulation, COB (Chip On Board), Fitting

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