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About: Wadsworth constant deviation system     Goto   Sponge   NotDistinct   Permalink

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Type: softwareyago:WikicatOpticalDevicesyago:Artifact100021939yago:Device103183080yago:Instrumentality103575240yago:Object100002684yago:OpticalDevice103851341yago:PhysicalEntity100001930yago:Whole100003553 New Facet based on Instances of this Class

In optics, Wadsworth's constant-deviation prism-mirror system (or Wadsworth constant deviation mounting) is a method to arrange a prism or diffraction grating and a mirror on a turntable to ensure that rays of light emerge in a fixed direction. Typically, light entering via a slit is directed into the prism by a lens. A particular wavelength can be chosen for analysis by setting the angle of the prism, and hence the part of the spectrum that exits by a mirror and lens combination. Rotating the prism through its entire range of motion enables the entire spectrum to be analyzed.