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ultraviolet filter

noun, Photography
1.
a filter used on a lens to absorb ultraviolet radiation that may impart an undesirable blue cast to a photograph.
Also called UV filter.
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for ultraviolet filter
  • It is also used to pump the water through the ultraviolet filter.
  • Consider ultraviolet filter treatments on windows in areas that house library materials.
  • Finally, an ultraviolet filter kills any remaining bacteria that might have survived.

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