Chinese Optics, Volume. 18, Issue 4, 850(2025)
Design of an optical system for airborne multispectral common-aperture targeting pod
Figures & Tables(16)
Fig. 3. System composition of multispectral common aperture optical system
Fig. 10. Spot diagram of the short-wave infrared convergen channel
Table 1. Specifications of optical system design
View tableView in ArticleTable 1. Specifications of optical system design
通道 指标 参数 系统要求 外包络尺寸 ≤Ф500 mm 近红外 谱段 0.6~0.9 μm 探测器分辨率 5120 ×4096 探测器像元尺寸 4.5 μm 焦距 1100 mmF# 5.0 传递函数 >0.2@110 lp/mm 视场角 1.2°×0.96° 畸变 <0.5% 短波红外 谱段 1.0~1.7 μm 探测器分辨率 1280 ×1024 探测器像元尺寸 15 μm 焦距 1200 mmF# 5.5 传递函数 >0.4@33 lp/mm 视场角 0.92°×0.73° 畸变 <0.5% 中波红外 谱段 3.4~4.2 μm 探测器分辨率 1280 ×1024 探测器像元尺寸 15 μm 焦距 880 mm F# 4.0 传递函数 >0.2@33 lp/mm 视场角 1.25°×1.0° 畸变 <0.5% 激光测照 谱段 1.064 μm 束散角 <0.05 mrad
Table 2. Tolerance analysis result
View tableView in ArticleTable 2. Tolerance analysis result
公差类型 公差容限 表面公差 光圈 1 厚度 0.02 偏心 0.01 倾斜 15″ 元件公差 偏心 0.01 倾斜 15″ 折射率 0.0002
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Ying-qi LIU, Hong-qiang LU, Ying-en SHU, Xin-chao NING, Shao-kang YANG, Zhong-hong BU. Design of an optical system for airborne multispectral common-aperture targeting pod[J]. Chinese Optics, 2025, 18(4): 850
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Received: Jan. 15, 2025
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Published Online: Aug. 13, 2025
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