用于激光接收/目视瞄准镜的共光路光学系统设计

Optical design of common path for laser receiving/visual collimator

  • 摘要: 为实现多传感器光轴校准并达到小型化轻量化的设计要求,将目视瞄准镜作为校轴光学基准,采用共用摄远型物镜组,并利用在立方棱镜斜面镀制光谱分光膜,实现高精度目视瞄准镜与激光接收的共光路系统设计。该目视瞄准镜放大倍率为7×、视场为5°、出瞳直径为3.7 mm、出瞳距离不小于20 mm;激光接收系统视场为1 mrad、接收口径为50 mm,设计结果满足指标要求。

     

    Abstract: To realize the correction of the optical axis and satisfy the requirement for miniaturization and lightweight, a laser/visual sighting telescope system was designed, which had the common path with laser receiving and visual collimator. By means of shared telephoto objective and coating beamsplitting film on inclined plane of the block prism, the system was applied to opticelectronic observatory, with visual correction of optic axis and laser receiving. The magnification of the visual sighting telescope is 7×, the field of view (FOV) is 5°, the exit pupil diameter is 3.7 mm, and the exit pupil distance is not less than 20mm. The laser receiving system has the FOV of 1mrad and the entrance pupil diameter of 50 mm. The designed results meet the index requirments.

     

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