Branching device
US4285571A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 20, 1979 |
| Grant date | Aug 25, 1981 |
| Priority date | — |
| Expiry date | Aug 20, 1999 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2817
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A branching device for optical waveguides by which a component of light is coupled out of the main light path which is formed by a first and second waveguide into a subsidiary third waveguide comprises a simplified construction which reduces material costs as well as assembly costs. For this purpose, the invention provides that between two coaxially aligned optical waveguides there is arranged only one beam divider reflector which is in the form of a coating or layer and that in the region of the group of light beams which is emitted from the end surface of one of the waveguides and is reflected by the beam divider reflector there is a gradient lens which focuses the end surface of the one waveguide onto the end surface of a third waveguide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.