Design of linearization double-linkage IR zoom lens

Nanxi Wang; Xiaobai Jiang; Yulan He; Hua Qiang; Wenli Kang

doi:10.1117/12.2256471

28 February 2017 Design of linearization double-linkage IR zoom lens

Nanxi Wang, Xiaobai Jiang, Yulan He, Hua Qiang, Wenli Kang

Proceedings Volume 10256, Second International Conference on Photonics and Optical Engineering; 102560Z (2017) https://doi.org/10.1117/12.2256471
Event: Second International Conference on Photonics and Optical Engineering, 2016, Xi'an, China

Abstract

A linearization double-group linkage zoom lens was presented based on the 640×512 cooled FPA. This configuration’s zoom groups and compensate groups are moved linear zing, omit zoom cam which control the movement of zoom curve make common double-linkage zoom lens easily. This configuration is similarity to optical compensate zoom has a little image displacement, but it is not influence the image quality when the image displacement control in allow range. This lens was placed at cold shield and 100% cold shield efficiency had reached. Moreover, detailed design and image quality were given by CODE optical software. After analysis, MTF approaches diffraction limit. The results show that this optical system has large zoom ratio, and excellent image quality.

Citation Download Citation

Nanxi Wang, Xiaobai Jiang, Yulan He, Hua Qiang, and Wenli Kang "Design of linearization double-linkage IR zoom lens", Proc. SPIE 10256, Second International Conference on Photonics and Optical Engineering, 102560Z (28 February 2017); https://doi.org/10.1117/12.2256471

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