Lenses; Lens systems

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Optical parts > Lenses; Lens systems

CPC:

Optical parts (characterised by the material G02B1/00) > Lenses; Lens systems

Of 6 combined children, 3 exist in both systems.

3 codes are CPC-only extensions.

1 shared codes have differing titles between IPC and CPC.

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G02C 7/021 CPC only CPC only
G02C 7/022 CPC only CPC only
G02C 7/024 +3 CPC CPC only CPC only
G02C 7/04 Contact lenses for the eyes (disinfection or sterilisation of contact lenses A61L12/00) +5 CPC IPC+CPC Available in IPC and CPC
G02C 7/06 bifocal; multifocal +1 CPC IPC+CPC Available in IPC and CPC
G02C 7/08 Auxiliary lenses; Arrangements for varying focal length +3 CPC IPC+CPC Available in IPC and CPC