| 光学补偿式红外高变倍比步进变焦光学系统的设计 |
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| 引用本文： | 张良,潘晓东,刘玉,刘红霞.光学补偿式红外高变倍比步进变焦光学系统的设计[J].应用光学,2013,34(5):738-741. |
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| 作者姓名： | 张良 潘晓东 刘玉 刘红霞 |
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| 作者单位： | 1.中航工业洛阳电光设备研究所,河南 洛阳 471023 |
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| 摘 要： | 根据光学补偿变焦距理论，基于红外中波制冷型320240焦平面探测器，设计了31光学补偿式红外步进变焦光学系统。该光学系统工作波长范围为3 m～5 m，光学系统的F#和探测器相匹配，恒定为4，冷屏效率100%，焦距范围430 mm~12.867 mm。采用3种光学材料和非球面对光学系统进行优化设计，对7个视场严格校正了像差，各个视场的MTF曲线均接近衍射极限，获得了良好的像质。
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| 关 键 词： | 光学补偿 步进变焦系统 光学设计 红外 |
Design of optical compensated high zoom ratio infrared step zoom lens |
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| ZHANG Liang,PAN Xiao-dong,LIU Yu,LIU Hong-xia.Design of optical compensated high zoom ratio infrared step zoom lens[J].Journal of Applied Optics,2013,34(5):738-741. |
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| Authors: | ZHANG Liang PAN Xiao-dong LIU Yu LIU Hong-xia |
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| Institution: | 1.Luoyang Electro-Optical Equipment Research Institute of AVIC,Luoyang 471023,China |
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| Abstract: | According to the optical compensation theory, a 31× infrared step zoom optical system was designed based on 320×240 cooled mid wave infrared (MWIR) focal plane array (FPA) detector. Its operation wavelength range was 3 μm~5 μm, F number was 4, cold stop efficiency was 100%, and focal length range was 430 mm~12.867 mm. The step zoom optical system was optimized by adopting three kinds of optical materials and aspheric surface. Aberrations of seven fields of view (FOVs) were strictly corrected, the MTF of each FOV was close to diffraction limit, and the image quality was good. |
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| Keywords: | optical compensation step zoom system optical design infrared |
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