Abstract
Laser /visible dual-mode seeker used for precise guidance of missile was designed. In order to reduce the structure volume,RC complex structure of double-channel was used,which shared main mirror and secondary mirror together,and multiple-folding for light transforming was adopted.The focal length and field angle of the visible light path are 100 mm and 3° separately,which are designed for searching the initial goal of the larger region. The focal length and field angle of the laser light path are 300 mm and 0. 6° separately,which are designed for confirmation of the final target guided by laser. The computer software was used to optimize the analysis of design. The total quality is less than 600 g. These characteristics of structure design make certain the thermal stability and structural reliability. The results of environmental tests show that the visible MTF is better than0. 3@ 50 lp /mm,satisfying the end requirements.
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