DIFF Main Group
G02B 15/00 Optical objectives with means for varying the magnification (anamorphotic objectives G02B13/08)
Introduced: September 1968
Title
Titles differ between systems:
IPC: Optical objectives with means for varying the magnification
CPC: Optical objectives with means for varying the magnification (anamorphotic objectives G02B13/08)
Full Title
Full titles differ between systems:
IPC:
Optical objectives with means for varying the magnification
CPC:
Optical objectives with means for varying the magnification (anamorphotic objectives G02B13/08)
IPC and CPC are identically structured here. All 2 subcodes exist in both systems.
Child Classifications
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- G02B 15/02 by changing, adding, or subtracting a part of the objective, e.g. convertible objective IPC+CPC Available in IPC and CPC
- G02B 15/14 by axial movement of one or more lenses or groups of lenses relative to the image plane for continuously varying the equivalent focal length of the objective +5 CPC IPC+CPC Available in IPC and CPC