In this paper,an uncooled portable visible and infrared dual optical system based on a common aperture approach is designed to achieve simultaneous observation of visible and infrared dual band.Visible light path selected 1280 × 1024 CCD,pixel size of 3.45μm,field of view angle of 60°,working band of 486~656 nm,optical transfer function value at the Nyquist frequency of 50 lp /mm to achieve more than 0.3;infrared light road selected 640 × 512 uncooled detector,the pixel size is 17μm,the field of view is 60°,the working band is 8000~12000 nm,the optical transfer function value at the spatial frequency of 30 lp /mm to achieve more than 0.3.The size of the entire optical system is about 160mm×100mm×50mm,which meets the requirements of high performance,high integration,miniaturization,light weight,and no parallax.The experiments prove that the system has good imaging effect in both visible and infrared bands and has strong market competitiveness.
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刘秋佐,曹景华,杨加强,冯位欣.便携式多波段共孔径光学设计[J].激光与红外,2022,52(7):1078~1082 LIU Qiu-zuo, CAO Jing-hua, YANG Jia-qiang, FENG Wei-xin. Portable multi band common aperture optical design[J]. LASER & INFRARED,2022,52(7):1078~1082