Apparatus for separating or synthesizing light signals
US4702548A · kind A · utility
5Cited by
3References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 30, 1985 |
| Grant date | Oct 27, 1987 |
| Priority date | — |
| Expiry date | Jan 30, 2005 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2817
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
First and second dielectric multilayer film filters are disposed along a straight optical axis and inclined about 45.degree. with respect thereto. The second filter is rotated about the optical axis by a predetermined angle with respect to the first filter so as to divide a path of light incident upon or emitting from the first filter into a first path of light transmitting through the first and second filters, and a second path of light reflected by the first filter. The second path is orthogonal to the first path. The apparatus is used for separating or synthesizing light signals.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.