Article
Article
Color filter
Article By:
Wolfe, William L. College of Optical Sciences, The University of Arizona, Tucson, Arizona.
Last reviewed:January 2020
DOI:https://doi.org/10.1036/1097-8542.149600
An optical element that partially absorbs incident radiation, often called an absorption filter. The absorption is selective with respect to wavelength, or color, limiting the colors that are transmitted by limiting those that are absorbed. Color filters absorb all the colors not transmitted. They are used in photography, optical instruments, and illuminating devices to control the amount and spectral composition of the light.
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