DIFF Subgroup
G02B 9/14 arranged + - +
Introduced: September 1968
Title
Titles differ between systems:
IPC: arranged + – +
CPC: arranged + - +
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 + – +
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 + - +
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
3 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G02B 9/18 only one component having a compound lens (G02B9/30 takes precedence) IPC+CPC Available in IPC and CPC
- G02B 9/24 two of the components having compound lenses (G02B9/30 takes precedence) IPC+CPC Available in IPC and CPC
- G02B 9/30 the middle component being a - compound meniscus having a + lens IPC+CPC Available in IPC and CPC