DIFF Subgroup
G02B 23/02 involving prisms or mirrors (G02B23/14 takes precedence)
Introduced: September 1968
Title
Titles differ between systems:
IPC: involving prisms or mirrors
CPC: involving prisms or mirrors (G02B23/14 takes precedence)
Full Title
Full titles differ between systems:
IPC:
Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices > involving prisms or mirrors
CPC:
Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices > involving prisms or mirrors (G02B23/14 takes precedence)
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
2 shared codes have differing titles between IPC and CPC.
Child Classifications
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- G02B 23/04 for the purpose of beam splitting or combining, e.g. fitted with eyepieces for more than one observer (G02B23/10 takes precedence) IPC+CPC Available in IPC and CPC
- G02B 23/10 reflecting into the field of view additional indications, e.g. from collimator +1 CPC IPC+CPC Available in IPC and CPC