DIFF Subgroup
G02B 27/50 Optics for phase object visualisation
Introduced: January 1980
Full Title
Full titles differ between systems:
IPC:
Optical systems or apparatus not provided for by any of the groups , > Optics for phase object visualisation
CPC:
Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 > Optics for phase object visualisation
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1980.
Child Classifications
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- G02B 27/52 Phase contrast optics (in microscopes G02B21/14) since 1980 IPC+CPC Available in IPC and CPC