Overview

reflection grating


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A diffraction grating in which the grooves are ruled in a reflective coating. The grating may be either plane or concave, the latter being able to focus light. The advantage of a reflection grating over a transmission grating is that it produces a spectrum extending from the ultraviolet to the infrared, since the light does not pass through the grating material.

Subjects: Astronomy and Astrophysics.


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