| Title |
The Design of 6 inch Down-light by Optimization of the Optical and the Thermal Properties |
| Authors |
김성현(Kim, Sung-Hyun) ; 정영기(Joung, Young-Gi) ; 서범식(Seo, Bum-Sik) ; 양종경(Yang, Jong-Kyung) ; 박대희(Park, Dae-Hee) |
| DOI |
https://doi.org/10.5370/KIEE.2011.60.6.1178 |
| Keywords |
LED ; Optical ; Distribution ; Downlight ; Thermal |
| Abstract |
The best methods for distribution controled of LED lighting fixtures is control to designed LED chip array, lens and reflector. However, lens design need distribution design to reflector for low-wattage LED lighting because of difficulty of production and reduction of light efficiency. In addition, it needs maximize of thermal performance to improve the efficiency and reliability of device. As a result, for the height of reflector 40[mm] and Inclination 25[°], we can see the best distribution properties, and, in the thermal properties, junction temperature MCPCB 62.9 [°C], FR4 PCB 89.6 [°C], FR4 PCB from Via-hole is 63.1 [°C]. it may improve for thermal properties for makes the Via-hole. |