Request InfoEdmund Optics Inc.Edmund Optics Inc.’s infrared right-angle prisms are used to achieve a 90° light path bend. They are available in three substrates. Calcium fluoride provides good transmission from 190 nm to 7 μm and is suitable for applications throughout the ultraviolet, visible and infrared regions. Germanium’s high index of refraction suits applications in the 3- to 12-μm region, and zinc selenide features high transmission from 1 to 16 μm. The uncoated prisms are suitable for use with well-collimated light sources. 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