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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 4 — Feb. 25, 2013
  • pp: 5071–5073

A complementary study to “Toward scatter-free phosphors in white phosphor-converted light-emitting diodes:” comment

Run Hu, Xing Fu, Yong Zou, and Xiaobing Luo  »View Author Affiliations


Optics Express, Vol. 21, Issue 4, pp. 5071-5073 (2013)
http://dx.doi.org/10.1364/OE.21.005071


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Abstract

In a recent paper, Park et al. [Opt. Express 20(9), 10218 (2012)] demonstrated that large micro-size cube phosphors are an outstanding potential candidate for scatter-free phosphors in white phosphor-converted light-emitting diodes (pc-LEDs). They found that large micro-size cube phosphors can lead to higher luminous efficiency (LE), higher packaging efficiency (PE), and reduced influences of ambient temperature and applied current. In this comment, we further discussed the large micro-size phosphors on the angular color uniformity (ACU). It is found that when the phosphor particle size increases from 30 μm to 100 μm, the ACU decreases from 0.91 to 0.86.

© 2013 OSA

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(290.0290) Scattering : Scattering
(290.4020) Scattering : Mie theory

ToC Category:
Optical Devices

History
Original Manuscript: August 17, 2012
Revised Manuscript: October 16, 2012
Manuscript Accepted: November 16, 2012
Published: February 21, 2013

Citation
Run Hu, Xing Fu, Yong Zou, and Xiaobing Luo, "A complementary study to “Toward scatter-free phosphors in white phosphor-converted light-emitting diodes:” comment," Opt. Express 21, 5071-5073 (2013)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-21-4-5071


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References

  1. H. K. Park, J. H. Oh, and Y. R. Do, “Toward scatter-free phosphors in white phosphor-converted light-emitting diodes,” Opt. Express20(9), 10218–10228 (2012). [CrossRef] [PubMed]
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  7. R. Hu, X. B. Luo, H. Zheng, Z. Qin, Z. Q. Gan, B. L. Wu, and S. Liu, “Design of a novel freeform lens for LED uniform illumination and conformal phosphor coating,” Opt. Express20(13), 13727–13737 (2012). [CrossRef] [PubMed]
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  9. R. Hu, X. Luo, and H. Zheng, “Hotspot location shift in the high-power phosphor-converted white light-emitting diode packages,” Jpn. J. Appl. Phys.51, 09MK05 (2012). [CrossRef]

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