红外场景产生器折射/衍射准直光学系统设计

Design of the diffractive/refractive optical system in optical collimator of infrared scene generator

在红外成像制导仿真系统中,场景产生器是一个非常关键的部分。利用二元光学技术,设计了一种应用于8～14μm波段红外场景产生器的准直光学系统,视场角为±4°,光瞳直径为100mm。借助于二元光学器件的独特性质,系统在仅使用两片锗透镜的情况下得到了接近衍射极限的光学质量。

In an infrared imaging guidance simulation system, its scene generator is a vital part, By virtue of binary optical technique, an infrared collimating optical system suitable for the infrared scene generator with 8-14 μm wavelength range is designed. Its field angle and entrance pupil diameter are 4°and 100 mm respectively. The designed system benefits from the specialities of binary optical elements and approaches diffraction limitation by use of only two germanium lenses.