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crown lens

noun Optics.

a lens made of crown glass, usually used as the converging lens component of an achromatic lens.

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Origin of crown lens

First recorded in 1825–35

Words nearby crown lens

crown imperial, crowning, crown-jewel option, crown jewels, crown land, crown lens, crown octavo, Crown Office, crown-of-jewels, crown of thorns, crown-of-thorns starfish
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for crown lens

crown lens

noun

a lens made of optical crown, esp the optical-crown part of a compound achromatic lens
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