Acta Photonica Sinica, Volume. 44, Issue 2, 222001(2015)
Design of Squared Uniform Illumination Based on High Power LED Extended Objects
Based on principle of edge ray and etendue conservation ideas, the compound parabolic concentrator and freeform lens collimator were designed for high power Light Emitting Diode extended source. By using TracePro software for ray tracing simulation and experimental guidance, a light radiation simulator with uniform illumination output was developed. The divergence angle of simulator output light beam is measured as ±0.2 rad. In the lightscreen of 50 cm distance the beam horizontal uniformity is measured better than 4.1%, and longitudinal uniformity better than 3.8%, within 14 cm×14 cm size illuminated area.
Get Citation
Copy Citation Text
LI Peng, ZHENG Yi, FAN Jiang-bing, ZHAO Jia-kai, XU Wei-zhong, ZHU Bao-long, ZHENG Yao-yuan, HU Miao. Design of Squared Uniform Illumination Based on High Power LED Extended Objects[J]. Acta Photonica Sinica, 2015, 44(2): 222001
Category:
Received: Jun. 11, 2014
Accepted: --
Published Online: Feb. 15, 2015
The Author Email: Peng LI (myddp@126.com)