Laser & Optoelectronics Progress, Volume. 54, Issue 10, 101601(2017)
Effect of Phosphor Sedimentation on Photochromic Properties of Light Emitting Diodes
Aiming at the phenomenon of phosphor sedimentation during white light emitting diode (LED) package, the optical properties and the concentration ratios of color coordinates of a white LED after dispensing are studied under different standing time. The study results show that, when the standing time is between 0 and 30 min, the color coordinate setting is concentrated whose center coordinates are in the range of 7 SDCM color tolerance; when the standing time is between 30 min and 40 min, the color coordinate setting is dispersive whose center coordinates are out of the range of color tolerance. The heat distribution of white LED lamps at the heat balance is simulated and the results show that the working temperature of light emitting diode lamps meets the requirements of industrial production.
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Zhuang Yunyi, Wang Yong, Li Zhanguo, Li Wenbo, Yang Lei, Zou Jun. Effect of Phosphor Sedimentation on Photochromic Properties of Light Emitting Diodes[J]. Laser & Optoelectronics Progress, 2017, 54(10): 101601
Category: Materials
Received: Feb. 22, 2017
Accepted: --
Published Online: Oct. 9, 2017
The Author Email: Yunyi Zhuang (zhuangyunyi0802@163.com)