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Chinese Optics Letters

Chinese Optics Letters

| PUBLISHED MONTHLY BY CHINESE LASER PRESS AND DISTRIBUTED BY OSA

  • Vol. 8, Iss. 2 — Feb. 1, 2010
  • pp: 221–223

A new structure of multi-layer phosphor package of white LED with high efficiency

Baicheng Li, Dawei Zhang, Yuanshen Huang, Zhengji Ni, and Songlin Zhuang  »View Author Affiliations


Chinese Optics Letters, Vol. 8, Issue 2, pp. 221-223 (2010)


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Abstract

The applications of white light-emitting diodes (LEDs) have become more and more wide recently, while the low light-extraction eciency of white LED limits its development. In this letter, a new structure of multilayer phosphor package of white LED is proposed to improve the light-extraction efficiency. It is illustrated that the thickness of phosphor layer plays an important role in improving the light-extraction efficiency of LED. The light-extraction efficiency of LED is improved by double-layer or multi-layer phosphor package structures.

© 2010 Chinese Optics Letters

OCIS Codes
(230.0230) Optical devices : Optical devices
(230.3670) Optical devices : Light-emitting diodes

Citation
Baicheng Li, Dawei Zhang, Yuanshen Huang, Zhengji Ni, and Songlin Zhuang, "A new structure of multi-layer phosphor package of white LED with high efficiency," Chin. Opt. Lett. 8, 221-223 (2010)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-8-2-221

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