Fiber optic input device having a light transmissive body with parallel grooves
US5122656A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 13, 1990 |
| Grant date | Jun 16, 1992 |
| Priority date | — |
| Expiry date | Dec 13, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0386
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A sensor which comprises a light transmitting body having first and second opposing surfaces, the first surface having a first plurality of parallel grooves therein and wall members spacing the first grooves from each other, the second surface having a second plurality of parallel grooves therein extending in a direction substantially perpendicular to the first grooves, each of the second grooves optically coupled to one of the wall members, a first array of photoresponsive devices disposed at one end portion of the first grooves, the first array having a photoresponsive device associated with each groove of the first grooves and a second array of photoresponsive devices disposed at one end portion of the second grooves, the second array having photoresponsive device associated with each groove of the second grooves.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.