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中文摘要：
为了实现大变倍比连续变焦距红外光学系统的光学被动无热化设计,研究了连续变焦距系统的无热化设计基本理论及方法。提出了在大相对孔径大变倍比连续变焦距红外系统中采用光学被动式消热差的方法。推导出了连续变焦距系统光学被动消热差的计算方法。基于这种计算方法,设计了一个焦距30-150mm,长波红外工作波段在8-12μm,相对孔径1∶1.1的大变倍比、大相对孔径连续变焦距系统,并进行光学被动消热差设计,使系统在-30℃-60℃温度范围内MTF大于0.3满足成像要求。系统设计合理,成像质量满足要求,通过系统设计充分验证设计理论的可行性和实用性。
英文摘要：
In order to realize zooming infrared optical passive athermalized design, the theory and design method of continuously zooming infrared athermalized optical system is researched. A new method, optical passive athermalization is proposed to solve the athermalized question in zooming system. Fundamental formula of optical passive athermalization is deduced. Based on the method, a zoom system operating in 8-12μm, EFL 30mm-150mm, F#1.1 is designed. The system achieves good image quality at the temperature ranging from -30℃-60℃, while the MTF reach 0. 3. The sys- tem has a compact structure and reach production standard. The theory of continuously zooming infrared athermalized op- tical design is feasible.
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