Switch for light conducting fibers
US4204744A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 25, 1978 |
| Grant date | May 27, 1980 |
| Priority date | — |
| Expiry date | Jan 25, 1998 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/3572
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A switch for optically connecting a first light conducting fiber selectively with at least one second light conducting fiber characterized by a first light conducting fiber having a magnetic sleeve adjacent the free end thereof, at least one second light conducting fiber, a substrate having a first flat surface with a layer being disposed on the first flat surface and having a recess with a groove for each of the first and second fibers extending therefrom. Each of the second fibers is disposed in its respective groove with the free end extending into the recess and the first fiber is disposed in its groove with its free end which has the magnetic sleeve being mobile in the recess between a first position forming an optical connection with one of the second fibers and a second position out of optical connection with one of the second fibers so that an application of an external magnetic field causes the free end of the first fiber to move between the first and second positions. One of the preferred methods of forming the switch comprises providing a substrate having a layer of light sensitive material disposed thereon, exposing the light sensitive material through a mask of a desir…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.