IPC Main Group
G02B 17/00 Systems with reflecting surfaces, with or without refracting elements
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
Related Keywords
mirrors producing DISTORTIONLOOKING-GLASSES as optical elements
2 direct subcodes
Child Classifications
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- G02B 17/02 Catoptric systems, e.g. image erecting and reversing system
- G02B 17/08 Catadioptric systems