Optical design of VIS/MWIR dual-band common-aperture system

HAN Peixian; REN Ge; LIU Yong; GUO Junli; ZHOU Jianwei; CUI Zhangang

doi:10.5768/JAO202041.0301001

Journal of Applied Optics > 2020 > 41(3): 435-440. > DOI: 10.5768/JAO202041.0301001

HAN Peixian, REN Ge, LIU Yong, GUO Junli, ZHOU Jianwei, CUI Zhangang. Optical design of VIS/MWIR dual-band common-aperture system[J]. Journal of Applied Optics, 2020, 41(3): 435-440. DOI: 10.5768/JAO202041.0301001

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Optical design of VIS/MWIR dual-band common-aperture system

HAN Peixian^{1, 2, 3,},
REN Ge^{1, 3},
LIU Yong²,
GUO Junli¹,
ZHOU Jianwei¹,
CUI Zhangang¹

1.
Key Laboratory of Beam Control，Institute of Optics and Electronics， Chinese Academy of Sciences，Chengdu 610209，China
2.
College of Photoelectric Science and Engineering，University of Electronic Science and Technology of China，Chengdu 610054，China
3.
University of Chinese Academy of Sciences，Beijing 100049，China

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Received Date: August 25, 2019
Revised Date: September 14, 2019
Available Online: May 29, 2020

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Abstract

Abstract

In order to improve the ability of target detection and recognition of the photoelectric detection equipment, a set of VIS/MWIR dual-band common-aperture optical system was designed. Based on the practical engineering experience, an optical design method with segmented design and combinatorial optimization was summarized, and the design process of the initial structure for the dual-band common-aperture optical system was reconstructed by reasonably distributing the focal power and selecting the appropriate initial structure. In addition, combined with CodeV and TracePro soft, the narcissus phenomenon of the refrigeration mid-wave infrared detection system was quantized, and the validity of the analysis conclusion was verified by the field test imaging. In the dual-band common-aperture optical system, the maximum field of view is 1.25°, and the distortion is less than 0.1%, which can work at ambient temperature −30℃～50℃. The 100% cold shield efficiency is realized by the mid-wave infrared detection system, and the switching of the size of the field of view is realized by the visible light detection system. The dual-band optical system has the functions of focusing and dimming, which shows good imaging quality, good processability, small assembly difficulty, and strong engineering implementability.
- optical design,
- photoelectric theodolite,
- narcissus analysis,
- dual-band imaging system,
- common -aperture structure

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References (15)

References

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Optical design of VIS/MWIR dual-band common-aperture system