轻巧型半主动激光制导光学系统设计

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中图分类号：TP394.1;TH691.9 文献标志码：A doi：10.37188/CO.2024-0229 CSTR：32171.14.CO.2024-0229

Abstract： In order to minimize misalignment angle erors in laser-guided seekers， it is necessary to optimize the quality of energy signals through advanced optical design techniques. The initial design parameters were obtained through the integration of aberration theory and state-of-the-art optical design software.The optical system is progressively designed through iterative processes from the perspectives of the optical structural forms and optimization of aberration balancing. To enhance angular measurement precision， we improved the symmetry of the light spot by carefully controlling the image-side telecentric condition. Furthermore，a comprehensive performance analysis of optical plastic materials demonstrated the viability of using these materials in the manufacture of the seeker's optical structure. Our final optical system design boasts a focal length of 71.6mm and an F/# of 1， with the edge field chief ray telecentric maintained below 6 mrad. In the operating temperature range， the stability of spot size is better than 0.4% and the maximum distortion of the full field of view is less than 0.5% . Notably， within a ±2∘ field of view， both the light spot linearity and energy response consistency meet the stringent requirements for precision guidance. The structural design methodology we employed， which focuses on minimizing primary aberrations，can be effectively applied to the optimization of catadioptric systems，thus serving as a valuable reference forthe optical structure design of similar seekers.

Key words： laser guidance; aplanatic lens; catadioptric; optical design

1引言

在现代局部战争中，半主动激光制导武器凭借其打击精度高、成本低廉等特点，成为各国对地攻击装备发展的重点。（剩余9765字）