IPC Main Group
G02B 11/00 Optical objectives characterised by the total number of simple and compound lenses forming the objective and their arrangement
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
6 direct subcodes
Child Classifications
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- G02B 11/02 having two lenses only
- G02B 11/06 having three lenses only
- G02B 11/2 having four lenses only
- G02B 11/3 having five lenses only
- G02B 11/32 having six lenses only
- G02B 11/34 having more than six lenses