crown lens
noun Optics.
a lens made of crown glass, usually used as the converging lens component of an achromatic lens.
Origin of crown lens
First recorded in 1825–35
Words nearby crown lens
crown graft,
crown green,
crown imperial,
crown jewels,
crown land,
crown lens,
crown octavo,
crown of thorns,
crown office,
crown point,
crown post
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