High humidity resistance of high-power white-light-emitting diode modules employing Ce:YAG doped glass

Author(s):  
Chun-Chin Tsai ◽  
Jyun-Sian Liou ◽  
Wei-Chih Cheng ◽  
Cheng-Hsun Chung ◽  
Ming-Hung Chen ◽  
...  
2010 ◽  
Author(s):  
Kyung-Mi Moon ◽  
Se-Hwan An ◽  
Hyung-Kun Kim ◽  
Jung-Hye Chae ◽  
Yong-Jo Park

2017 ◽  
Vol 28 (23) ◽  
pp. 17557-17569 ◽  
Author(s):  
Jiajie Fan ◽  
Mengni Zhang ◽  
Xiao Luo ◽  
Cheng Qian ◽  
Xuejun Fan ◽  
...  

2005 ◽  
Vol 892 ◽  
Author(s):  
Hong Luo ◽  
Jong Kyu Kim ◽  
Yangang Xi ◽  
E. Fred Schubert ◽  
Jaehee Cho ◽  
...  

AbstractAn optimized packaging configuration for high-power white-light-emitting diode (LED) lamps that employs a diffuse reflector cup, a remote phosphor and a hemi-spherically-shaped encapsulation is presented. Ray tracing simulations for this configuration show that the phosphor efficiency can be enhanced by up to 50% over conventional packages. It is experimentally shown that dichromatic LED lamps with remote phosphor and diffuse reflector cup configuration have higher phosphor efficiency by 15.4% for blue-pumped yellow phosphor and by 27% for ultraviolet-pumped blue phosphor over conventional packages. Those improvements are attributed to reduced absorption of the phosphorescence by the LED chip and the reduction of deterministic optical modes trapped inside the encapsulant.


2019 ◽  
Vol 39 (6) ◽  
pp. 2149-2154 ◽  
Author(s):  
Xin Liu ◽  
Xinglu Qian ◽  
Zewang Hu ◽  
Xiaopu Chen ◽  
Yun Shi ◽  
...  

2021 ◽  
Vol 229 ◽  
pp. 117684
Author(s):  
A. Arellano-Morales ◽  
J. Molina-González ◽  
H. Desirena ◽  
J.M. Bujdud-Perez ◽  
S. Calixto

2014 ◽  
Vol 21 (5) ◽  
pp. 683-686 ◽  
Author(s):  
Maria A. Shvaleva ◽  
Lidiya A. Nikulina ◽  
Vladimir A. Aseev ◽  
Karim D. Mynbaev ◽  
Vladislav E. Bougrov ◽  
...  

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