Journal Archive

Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 28 , No. 4

[Paper List] [Go to Volume List]


[ Technical Papers ]
Journal of the Korean Society of Manufacturing Technology Engineers - Vol. 28, No. 4, pp. 253-259
Abbreviation: J. Korean Soc. Manuf. Technol. Eng.
ISSN: 2508-5107 (Online)
Print publication date 15 Aug 2019
Received 11 Apr 2019 Revised 20 May 2019 Accepted 05 Aug 2019
DOI: https://doi.org/10.7735/ksmte.2019.28.4.253
LED 조명 광학계의 진공주형 제작 공법 연구
강대희^a^{, *} ; 문덕영^a ; 유경선^a ; 현동훈^a

A Study on Vacuum Casting Making Method for LED Lighting System
Dae-Hui Kang^a^{, *} ; Duk-Young Moon^a ; Kyung-Sun Yoo^a ; Dong-Hoon Hyun^a
aCourse for Knowledge-based Technology(Opto-Nanotronics), Korea Polytechnic University, 237, Sangidaehak-ro, Siheung, Gyeonggi-do, 15073, Korea
Correspondence to : ^*Tel.: +82-31-495-4903 Fax: +82-31-495-4906 E-mail address: ktec2005@empas.com (Dae-Hui Kang)

Abstract

In this study, we fabricated polyurethane and epoxy lenses with a 135 W LED spotlight using a vacuum casting method. We implemented the lens shape and confirmed the illumination performance compared with that of existing lenses. First, we fabricated a silicone mold for the vacuum casting process with a 135 W LED light lens as a vacuum casting reference. Second, the lens material for the vacuum casting was fabricated using both polyurethane and epoxy materials; the performances of the polyurethane and the epoxy lenses manufactured by the vacuum mold were compared with that of other lenses. Finally, the NEMA type 4 H × 4 V lighting performance was studied.


Keywords: Vacuum casting, Prototype, LED light, Lens, Silicon mold, NEMA standards

References


1.	Kim, G. D., 2007, Variations of Form Accuracy in the Process of Metal Cast Prototyping using Rapid prototype, Vacuum casting and Ceramic Mold, Journal of the Korean Society for Precision Engineering, 24:6 131-137.
2.	Jeon, E. C., Han, M. S., Kim, S. Y., 2007, Study on optimum conditions establishment by Mold fabrication of Vacuum Casting, Journal of the Korean Society of Manufacturing Process Engineers, 6:4 65-70.
3.	Ahn, D. G. and Yang, D. Y., 2005, Principle of Rapid Prototyping and its Trends, Journal of the Korean Society for Precision Engineering, 22:10 7-16.
4.	Song, S. B., 2015, LED Lighting Component Technology Trend and Prospect, The Proceedings of the Korean Institute of Illuminating and Electrical Installation Engineers, 29:2 22-34.
5.	Kang, D. H., 2015, A Study on the LED Lens by using the silicon modeling process, Korea Polytechnic University, Course for Knowledge-based Technology (Opto-Nanotronics), Republic of Korea.
6.	Jeon, E. C., Han, M. S., Kim, S. Y., Kim, T. H., 2007, Study on optimum conditions establishment by Mold fabrication of Vacuum Casting, Journal of the Korean Society of Manufacturing Process Engineers, 6:4 65-70.
7.	Kim, S. H., 2012, Vacuum Modeling for Development of Product Design, The Journal of the Korea Contents Association, 12:12 119-125.
8.	KIM LIGHTING, 1999, SITE/ROADWAY Optical Systems Design and Application Guide, 2-3, 8-9.