Share Email Print
cover

Proceedings Paper

Optical design method of freeform lens for a high-power extended LED source
Author(s): Hong Wang; Naifeng Du; Yuefeng Wu; Huamao Huang
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

In view of limitation for LED optical design method as ideal point source, a new uniform illumination optical design method of freeform lens for a high-power LED is present in the paper.By establishing an energy corresponding relationship between the extended LED source and the point illumination of the receiving surface, a freeform lens optical model achieving uniform illumination in target plane is obtained.The optical simulation results of uniform light intensity curve of the model are compared with the one designed by an approximate point source method. The results show that the new method can effectively overcome the shortages from the point source design.It is more accurately to control the correspondence relationship of light energy and the outgoing direction of light.The illumination uniformity of the freeform lens is greater than 75% and also meets the design requirements.

Paper Details

Date Published: 15 October 2012
PDF: 6 pages
Proc. SPIE 8420, 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical System Technologies for Manufacturing and Testing, 84200D (15 October 2012); doi: 10.1117/12.979201
Show Author Affiliations
Hong Wang, South China Univ. of Technology (China)
Georgia Univ. of Technology (United States)
Naifeng Du, South China Univ. of Technology (China)
Yuefeng Wu, South China Univ. of Technology (China)
Huamao Huang, South China Univ. of Technology (China)


Published in SPIE Proceedings Vol. 8420:
6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical System Technologies for Manufacturing and Testing
Xiangdi Lin; Yoshiharu Namba; Tingwen Xing, Editor(s)

© SPIE. Terms of Use
Back to Top