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Optics Letters

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  • Editor: Anthony J. Campillo
  • Vol. 31, Iss. 14 — Jul. 15, 2006
  • pp: 2193–2195

Precise optical modeling for LED lighting verified by cross correlation in the midfield region

Ching-Cherng Sun, Tsung-Xian Lee, Shih-Hsin Ma, Ya-Luan Lee, and Shih-Ming Huang  »View Author Affiliations


Optics Letters, Vol. 31, Issue 14, pp. 2193-2195 (2006)
http://dx.doi.org/10.1364/OL.31.002193


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Abstract

A novel LED modeling algorithm for precise three-dimensional light pattern simulation is proposed and demonstrated. We propose to use normalized cross correlation to verify the validity of the simulation in one-dimensional intensity patterns as well as two-dimensional irradiance patterns in various midfield distances and to provide feedback to achieve a successful model. The model is demonstrated to obtain an average of 99% in normalized cross correlation between the simulation light pattern and experimental measurement for a truncated inverse pyramid LED.

© 2006 Optical Society of America

OCIS Codes
(230.3670) Optical devices : Light-emitting diodes
(350.4600) Other areas of optics : Optical engineering

ToC Category:
Optical Devices

History
Original Manuscript: March 10, 2006
Revised Manuscript: April 26, 2006
Manuscript Accepted: April 26, 2006

Citation
Ching-Cherng Sun, Tsung-Xian Lee, Shih-Hsin Ma, Ya-Luan Lee, and Shih-Ming Huang, "Precise optical modeling for LED lighting verified by cross correlation in the midfield region," Opt. Lett. 31, 2193-2195 (2006)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-31-14-2193


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