IPC Subgroup
G02B 5/28 Interference filters
Introduced: September 1968
Last revised: January 2006
Full Title
Optical elements other than lenses > Filters > Interference filters
Classification Context
- Section:
- PHYSICS
- Class:
- OPTICS
- Subclass:
- OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
Scope Notes
Application references: Use of dichroic reflectors in lighting devices Use of dichroic filters in lighting devices
Related Keywords
optical filters using INTERFERENCE