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PCE
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IPC Subgroup
G02B 3/02

with non-spherical faces

Introduced: September 1968

Last revised: January 2006

Full Title

Simple or compound lenses > with non-spherical faces

Classification Context

Section:
PHYSICS
Class:
OPTICS
Subclass:
OPTICAL ELEMENTS, SYSTEMS OR APPARATUS

3 direct subcodes

Child Classifications

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  • G02B 3/04 with continuous faces that are rotationally symmetrical but deviate from a true sphere
  • G02B 3/06 with cylindrical or toric faces
  • G02B 3/08 with discontinuous faces, e.g. Fresnel lens