Rotary optical coupler
US4165913A · kind A · utility
13Cited by
5References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 1977 |
| Grant date | Aug 28, 1979 |
| Priority date | — |
| Expiry date | May 18, 1997 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3604
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Binary information developed on a rotating member is applied in the form of light signals to one end of an optical fiber which is disposed about the rotating member and positioned adjacent a stationary light detector. The surface of the optical fiber is roughened so that a portion of the light that axially propagates along the optical fiber is transmitted through the roughened wall of the fiber and is received at the light detector. The latter converts the thus received light signals into corresponding binary signals. In accordance with one aspect of the present invention, plural independent data coupling channels may be employed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.