27 August 1999 Compact multispectral optic with switchable fields of view
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A compact coaxial optical system is described that employs a Cassegrain telescope with switchable primary mirrors plus a catadioptric relay. The system can operate in the visible, near/thermal IR, and millimeter wavebands, is athermal, and provides multispectral compensation for a protective dome.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Philip J. Rogers, Philip J. Rogers, } "Compact multispectral optic with switchable fields of view", Proc. SPIE 3737, Design and Engineering of Optical Systems II, (27 August 1999); doi: 10.1117/12.360016; https://doi.org/10.1117/12.360016

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