DocumentCode
1976261
Title
Design of new hybrid optical system of LED cap lamp
Author
Qing Liu ; Yuncui Zhang ; Nianyu Zou ; Yingming Gao ; Jinghui Zhang ; Guanying Cao ; Fan Cao
Author_Institution
Res. Inst. of Photonics, Dalian Polytech. Univ., Dalian, China
fYear
2011
fDate
14-16 Oct. 2011
Firstpage
972
Lastpage
975
Abstract
A new hybrid optical system of LED cap lamp was designed for demand of luminous intensity distribution , which is made up of freeform refractor and freeform reflector. Simulation results show that the optical system has a better condensing performance than others, and the center illuminance of light spot is up to the requirement of national standards. The illumination uniformity of the optical system was greater than 0.8, and the radius of light spot of this optical system is 125 mm. The simulation results confirm that the cap lamp meets the requirements of mine.
Keywords
LED lamps; LED cap lamp; freeform reflector; hybrid optical system; light spot; luminous intensity distribution; refractor reflector; size 125 mm; LED Cap Lamp; freeform reflector; freeform refractor; hybrid optical system;
fLanguage
English
Publisher
iet
Conference_Titel
Communication Technology and Application (ICCTA 2011), IET International Conference on
Conference_Location
Beijing
Type
conf
DOI
10.1049/cp.2011.0817
Filename
6193016
Link To Document