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Proceedings Paper

Freeform reflector design for infrared light source
Author(s): Kun Zhang; Haiqing Chen; Qingwen Liang; Zhaoshu Liao; Jun Li
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Paper Abstract

In order to satisfy the requirements for the uniformity of infrared irradiance distribution and system energy efficiency, a freeform surface reflector is designed in this paper. First of all, the model of the infrared light source is established, basing on the shape of the actual light source and its radiation characteristics. Subsequently, a set of differential equations are presented according to the desired irradiance distribution on the optical stop. Afterwards, the surfaces data of the freeform reflector can be obtained by solve the equations using successive approximation method. Then the optical ray-tracing simulation is done by using the Monte Carlo approach. And the allowance of the infrared system is analyzed; the impacts that affect the simulation accuracy and the compensation process are also presented. The simulation results indicate that the distribution uniformity of infrared irradiance characteristics on the optical stop is higher than 95%, and the system energy efficiency reaches to 80%. Therefore, it can be concluded that the designed freeform surface reflector is an efficient approach to meet the demands of the uniform illumination of infrared light source and system energy efficiency.

Paper Details

Date Published: 7 October 2010
PDF: 6 pages
Proc. SPIE 7655, 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies, 765531 (7 October 2010); doi: 10.1117/12.866026
Show Author Affiliations
Kun Zhang, Huazhong Univ. of Science and Technology (China)
Haiqing Chen, Huazhong Univ. of Science and Technology (China)
Qingwen Liang, Huazhong Univ. of Science and Technology (China)
Zhaoshu Liao, Huazhong Univ. of Science and Technology (China)
Jun Li, Huazhong Univ. of Science and Technology (China)
Guilin Univ. of Electronic Technology (China)


Published in SPIE Proceedings Vol. 7655:
5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Advanced Optical Manufacturing Technologies
Li Yang; Yoshiharu Namba; David D. Walker; Shengyi Li, Editor(s)

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