optical filter

Also contains definition of: interference filter
https://doi.org/10.1351/goldbook.O04307
A device which reduces the spectral range (bandpass, cut-off, and interference filter) or @R05046@ of incident radiation (neutral density or @A00514@) upon @T06477@ of radiation.
Source:
PAC, 1996, 68, 2223. (Glossary of terms used in photochemistry (IUPAC Recommendations 1996)) on page 2257 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014