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LIU Ying-qi, LU Hong-qiang, SHU Ying-en, NING Xin-chao, YANG Shao-kang, BU Zhong-hong. Design of an optical system for airborne common-aperture multispectral targeting pod[J]. Chinese Optics. doi: 10.37188/CO.2025-0011
Citation: LIU Ying-qi, LU Hong-qiang, SHU Ying-en, NING Xin-chao, YANG Shao-kang, BU Zhong-hong. Design of an optical system for airborne common-aperture multispectral targeting pod[J]. Chinese Optics. doi: 10.37188/CO.2025-0011

Design of an optical system for airborne common-aperture multispectral targeting pod

cstr: 32171.14.CO.2025-0011
Funds:  Supported by Province Postdoctoral Research Funding Project (No. JA070202109145)
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  • A folding off-axis three mirror telescope has been used as the common optical path component in the design of an optical system suitable for a new airborne multispectral common aperture targeting pod. The optical system is characterized by miniaturization, high transmittance, multispectral, long focal length, and low difficulty of installation and adjustment. The designed multispectral common aperture optical system has an effective optical aperture of 220 mm, a near-infrared focal length of 1100 mm, a short-wave infrared focal length of 1200 mm, and a medium-wave infrared focal length of 880 mm. It can be integrated as a transmitting and receiving antenna with a laser sensor, which shares the same aperture and fast steering mirror with other imaging sensors. The system is mounted on a typical airborne spherical electro-optical pod platform with a diameter of 500 mm. The optical design analysis and results indicate that the image quality of the optical design has reached the diffraction limit. All indicators and parameters meet the technical requirements.

     

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