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http://dx.doi.org/10.7735/ksmte.2014.23.6.609

Investigation of the Angular Distribution of Luminous Intensity in the Symmetric Optical System of a COB LED High Bay  

Yoo, Kyung-Sun (Course for Knowledge-based Technology(Opto-Nanotronics), Korea Polytechnic University)
Lee, Chang-Soo (Course for Knowledge-based Technology(Opto-Nanotronics), Korea Polytechnic University)
Hyun, Dong-Hoon (Course for Knowledge-based Technology(Opto-Nanotronics), Korea Polytechnic University)
Publication Information
Journal of the Korean Society of Manufacturing Technology Engineers / v.23, no.6, 2014 , pp. 609-617 More about this Journal
Abstract
We have studied a chip-on-board LED lighting optical system for various luminous-intensity-distribution angles of the LED. An optical system that can accept different LEDs was made to reduce the systems's weight and size as we selected the chip-on-board LED, which is easy to apply to optical systems, unlike existing package-on-board LEDs. The luminous-intensity-distribution angles were $45^{\circ}$, $60^{\circ}$, $90^{\circ}$, and $120^{\circ}$. We researched these four types of optical systems. The $45^{\circ}$ and $60^{\circ}$ units were developed into reflectors, and the $90^{\circ}$ and $120^{\circ}$ units, into lenses. We checked the performance of the designed optical system through simulation and made a mock-up. Then we made a prototype of the chip-on-board LED high bay for use with the mock-up. After measuring its performance, we tested the luminous-intensity-distribution angles and compared them with simulation data. The resulting prototype was developed considering brightness, light uniformity, age, and economics which are suitable for a factory environment.
Keywords
Chip on board LED; LED Light; High bay light; Symmetric optical system; Luminous intensity distribution angle; Pattern reflector;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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