IPC Subgroup
G02B 17/02 Catoptric systems, e.g. image erecting and reversing system
Introduced: September 1968
Last revised: January 2006
Full Title
Systems with reflecting surfaces, with or without refracting elements > Catoptric systems, e.g. image erecting and reversing system
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
Related Keywords
CATOPTRIC systems
2 direct subcodes
Child Classifications
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- G02B 17/04 using prisms only
- G02B 17/06 using mirrors only