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Optical Design of Infrared Camera CASCAM

机译：红外摄像机CASCAM的光学设计

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摘要

The optical design of the optical-infrared camera, CASCAM, developed by Purple Mountain Observatory, is described here. CASCAM employs an infrared array HAWAII-1 and a CCD, simultaneously covers the wavelength range of 0.4-2.5 fim, and is designed for imaging and polarimetric imaging with the 2.16m and 1.26m telescopes at Xinglong Station. The camera optics consists of a focal reducer and Offner reflection system. The results of optimization with ZEMAX software show that the design satisfies the proposed observational requirements. The camera design is implemented by the achromatic focal reducer well designed for very wide wavelength band from the optical to the near-infrared, and makes some new attempts with wedged dichroic beam splitter, unrefriger-ated optical-filter wheels and a refraction dithering system.
机译：这里描述了由紫金山天文台开发的光学红外相机CASCAM的光学设计。 CASCAM使用红外阵列HAWAII-1和CCD，同时覆盖0.4-2.5 fim的波长范围，并通过兴隆站的2.16m和1.26m望远镜进行成像和偏振成像。摄像机光学系统由一个焦距减少器和Offner反射系统组成。 ZEMAX软件的优化结果表明，该设计满足了拟议的观测要求。相机的设计是通过消色差焦距衰减器实现的，该消色差焦距衰减器设计得非常好，适用于从光学到近红外的非常宽的波段，并且对楔形二向色分束器，非制冷滤光轮和折射抖动系统进行了新的尝试。

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