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concave lens

   Also found in: Medical, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.concave lensconcave lens - a lens such that a parallel beam of light passing through it is caused to diverge or spread out
diverging lens
lens, lens system, lense - a transparent optical device used to converge or diverge transmitted light and to form images


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Canon engineers achieved the high magnification of 15x/18x, as well as the compact optical system length by incorporating four elements in three groups and strategically positioning a concave lens within the objective lens section.
Canon Expands Line of Binoculars With Introduction of 15x50IS and ... by Business Wire
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