DIFF Subgroup
G02B 5/126 including curved refracting surface
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Optical elements other than lenses > Reflex reflectors > including curved refracting surface
CPC:
Optical elements other than lenses (light guides G02B6/00; optical logic elements G02F3/00) > Reflex reflectors > including curved refracting surface
IPC and CPC are identically structured here. All 3 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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- G02B 5/13 plural curved refracting elements forming part of a unitary body since 1974 IPC+CPC Available in IPC and CPC