beam splitter
noun Optics, Photography.
a mirror or prism that divides a beam of light into two parts by reflecting a part of the beam, used in camera range finders.
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Nearby words
beam lights, beam mill, beam reach, beam riding, beam sea, beam splitter, beam trawl, beam weapon, beam wind, beam-ends, beam-power tube
Origin of beam splitter
First recorded in 1930–35
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for beam splitter
beam splitter
noun
a system that divides a beam of light, electrons, etc, into two or more paths
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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