Optical Design and Engineering

Topology optimization of support structure of multiwaveband imaging system

[+] Author Affiliations
Xiaohu Li

Chinese Academy of Science, Changchun Institute of Optics, Fine Mechanics and Physics, Department of Photoelectric Technology, No. 3888, Dongnanhu Road, Changchun 130033, China

University of Chinese Academy of Sciences, Beijing 100039, China

Ming Xuan, Junlin Ma, Liming Zheng, Qiang Sun, He Wang

Chinese Academy of Science, Changchun Institute of Optics, Fine Mechanics and Physics, Department of Photoelectric Technology, No. 3888, Dongnanhu Road, Changchun 130033, China

Opt. Eng. 54(11), 115113 (Nov 30, 2015). doi:10.1117/1.OE.54.11.115113
History: Received August 28, 2015; Accepted October 27, 2015
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Abstract.  It is shown by a prototype experiment that the deformation of a support structure leads to relative deflection of the optical axes of a multiwaveband imaging system and then inconsistency of the fields of view of the subsystems. To solve this issue, a topology optimization method with the objective of minimizing the deflection angles of the optical axes is proposed. The method consists of the establishment of a deflection angle equation, the construction of an objective function, and the achievement of optimization using commercial software. Then, a new optimization structure is extracted from the topology optimization model. The comparative analysis between the original structure and the optimization structure shows that the deflection angles of the optical axes after topology optimization decrease greatly, which proves the effectiveness of the proposed method.

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© 2015 Society of Photo-Optical Instrumentation Engineers

Citation

Xiaohu Li ; Ming Xuan ; Junlin Ma ; Liming Zheng ; Qiang Sun, et al.
"Topology optimization of support structure of multiwaveband imaging system", Opt. Eng. 54(11), 115113 (Nov 30, 2015). ; http://dx.doi.org/10.1117/1.OE.54.11.115113


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