IPC Subgroup
G02B 5/13 plural curved refracting elements forming part of a unitary body
Introduced: July 1974
Last revised: January 2006
Full Title
Optical elements other than lenses > Reflex reflectors > including curved refracting surface > plural curved refracting elements forming part of a unitary body
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS