IPC Subgroup
G02B 27/46 Systems using spatial filters
Introduced: January 1980
Last revised: January 2006
Full Title
Optical systems or apparatus not provided for by any of the groups , > Diffraction optics > Systems using spatial filters
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS