Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
G02B 9/32

the + lens being a meniscus

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – > having three components only > arranged + – + > the middle component being a – compound meniscus having a + lens > the + lens being a meniscus

CPC:

Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or - (G02B15/00 takes precedence) > having three components only > arranged + - + > the middle component being a - compound meniscus having a + lens > the + lens being a meniscus

No child classifications to compare. This is a leaf node in both IPC and CPC.