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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 6 — Mar. 12, 2012
  • pp: 6622–6630

High uniformity in angular correlated-color-temperature distribution of white LEDs from 2800K to 6500K

Ching-Cherng Sun, Ching-Yi Chen, Cheng-Chien Chen, Chih-Yu Chiu, Yi-Ning Peng, Yu-Huan Wang, Tsung-Hsun Yang, Te-Yuan Chung, and Cheng-Yang Chung  »View Author Affiliations


Optics Express, Vol. 20, Issue 6, pp. 6622-6630 (2012)
http://dx.doi.org/10.1364/OE.20.006622


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Abstract

In this paper, to our best knowledge, it is the first time to present a precise simulation and detailed design of angular correlated color temperature (CCT) distribution of white LEDs covering a range of CCT from 2800K to 6500K. An optimized design of packaging structure with a silicone lens covering a phosphor dome performed an extreme small angular CCT deviation of 105K in the simulation and 182K in a corresponding real sample for a white LED with the CCT near 6500K.

© 2012 OSA

OCIS Codes
(080.2710) Geometric optics : Inhomogeneous optical media
(230.3670) Optical devices : Light-emitting diodes
(350.4600) Other areas of optics : Optical engineering

ToC Category:
Optical Devices

History
Original Manuscript: February 15, 2012
Manuscript Accepted: February 24, 2012
Published: March 6, 2012

Citation
Ching-Cherng Sun, Ching-Yi Chen, Cheng-Chien Chen, Chih-Yu Chiu, Yi-Ning Peng, Yu-Huan Wang, Tsung-Hsun Yang, Te-Yuan Chung, and Cheng-Yang Chung, "High uniformity in angular correlated-color-temperature distribution of white LEDs from 2800K to 6500K," Opt. Express 20, 6622-6630 (2012)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-6-6622


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