IPC Subgroup
G02B 11/06 having three lenses only
Introduced: September 1968
Last revised: January 2006
Full Title
Optical objectives characterised by the total number of simple and compound lenses forming the objective and their arrangement > having three lenses only
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
6 direct subcodes
Child Classifications
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- G02B 11/08 arranged L L L
- G02B 11/1 arranged L C L
- G02B 11/12 arranged L L C
- G02B 11/14 arranged C L C
- G02B 11/16 arranged C C L
- G02B 11/18 arranged C C C