Infrared and Visible Light Dual-Mode Seeker Optical System Design
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摘要: 为了提升导弹在复杂环境下的寻的制导能力，设计了一种红外与可见光双模式导引头光学系统。该方案中采用分光镜透射红外光反射可见光，使结构布局更加紧凑，实现红外与可见光共口径，同时配合红外材料选取，实现光学被动消热差设计。中红外模式视场角3°×2.3°，可见光模式视场角5°×4°，工作温度20℃条件下，双模式在截止频率处，MTF（Modulation Transfer Function）值均大于0.4。红外与可见光双模式光学系统适合应用于复杂环境的导弹制导，对温度有良好的适应性，具有较好的成像质量，满足系统的性能要求。Abstract: A folding anti-infrared and visible-light double-pattern optical guidance system was designed to improve the guidance of a missile in complex environments. In this scheme, the system layout for infrared and visible light is produced by spectroscopic optical visible light reflection, realizing dual-mode infrared and visible light, and optical passive heat reduction is implemented. In the mid-infrared mode, the field of view of the infrared mode is 3°×2.3°, the angle of view of the visible light mode is 5°×4°, the working temperature is 20℃, and the dual mode MTF is greater than 0.4 in the cup-frequency. Infrared and visible-light dual-mode optical systems are suitable for missile guidance in complex environments, have good adaptability to temperature, and have good imaging quality and performance.
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Keywords:
- optical systems /
- visible light /
- medium wave infrared /
- heat separation
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表 1 红外光学系统参数
Table 1 Parameters of IR system
FOV ≥3°×2.3° Focus length 90 mm F# ≤1.1 Entrance pupil diameter ≥83 mm 
下载: 导出CSV
表 2 可见光光学系统参数
Table 2 Parameters of visible system
FOV ≥5°×4° Focus length 101 mm F# ≤5 Entrance pupil diameter ≥20 mm
下载: 导出CSV
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