Research Center for Space Optics Engineering, Harbin Institute of Technology, Heilongjiang, Harbin 150001, China.
Opt Lett. 2011 Aug 15;36(16):3021-3. doi: 10.1364/OL.36.003021.
We use a wavefront coding approach to control thermal defocus aberration in an IR imaging system. The design method of athermalized system using a wavefront coding technique is discussed. An athermalized long wave IR optical system, which works at temperatures ranging from -40 °C to 60 °C, is designed by employing a cubic phase mask. Computer simulations and the first experimental demonstration are executed to verify the performance of this wavefront coded athermalized system and to clarify the issues related to its implementation.
我们使用波前编码方法来控制红外成像系统中的热离焦像差。讨论了使用波前编码技术的无热化系统的设计方法。采用立方位相掩模设计了一个工作温度范围为-40°C 至 60°C 的长波红外光学系统。通过计算机模拟和首次实验验证，验证了该波前编码无热化系统的性能，并阐明了与实现相关的问题。
