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beam splitter

noun, Optics, Photography
1.
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.
Origin
1930-1935
1930-35
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for beam splitter
  • If the photons from the two ions are in the same state, the beam splitter will shunt both to one photodetector.
  • Optical beam splitter method compared to new method of controlling single electron spin.
  • The power is coupled from the laser by a beam splitter.
  • The beam of light produced by the light source is split into left and right beams by a beam splitter.
  • The laser power was monitored with a silicon photodiode radiometer via a beam splitter.
British Dictionary definitions for beam splitter

beam splitter

noun
1.
a system that divides a beam of light, electrons, etc, into two or more paths
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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8
10
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