【摘要】 低温光学系统对于在空间探测微弱红外目标有重要的意义。无热效应的光学系统设计保证光学系统的像质不受温度变化的影响。有限元分析方法的结构优化设计 ,在确保光学性能的前提下使系统的重量达到最轻。特殊的制造工艺充分消除零件内部应力。低温检测的结果表明 ,光学系统的温度从室温降到 10 0K的低温 ,在温度变化 185K的条件下 ,系统波面误差几乎没有变化 ,光学系统都能达到衍射极限的成像质量更多还原

【Abstract】 The development of a cryogenic optical system is presented including the system design, manufacturing and cryogenic test at near liquid nitrogen temperature. The test results show that there is little wavefront error difference between the optical system at room temperature and cooled to 100 K. In both cases the optical system all can achieve diffraction limited imaging quality.更多还原