Opto-electronic device

Details Opto-electronic device Opto-electronic device

Filed on

1997-12-09

Date issued

1999-11-09

Examiner

Westin, Edward P.

Patent Class

Radiant energy

SubClass

Photocells; circuits and apparatus

SubSubClass

Optical or pre-photocell system

Other Related Categories

25022711, 25022714, 25022728, 250221, 359618, G08C 2100

Type

Patent

Status

active

Patent number

059819383

Description

ABSTRACT:
An opto-electronic device that includes a source of a collimated beam of light, a reflector, and at least on partly reflective surface. The partly reflective surface may be a surface of a detector, or alternatively a surface of a partly reflective material behind which one or more detectors are positioned. The partial reflectivity of the surface is exploited to reflect the light beam several times to the same detector, or alternatively among several detectors. Illustrative applications of the device include a pulse sharpener, a touch screen, a serial-to-parallel converter and an opto-electronic switch.

REFERENCES:
patent: Re33213 (1990-05-01), Borden
patent: 3763372 (1973-10-01), Fedotowsky et al.
patent: 4270047 (1981-05-01), Mochizuki et al.
patent: 4346376 (1982-08-01), Mallos
patent: 4484179 (1984-11-01), Kasday
patent: 4673918 (1987-06-01), Adler et al.
patent: 4871232 (1989-10-01), Grinberg et al.
patent: 5177805 (1993-01-01), Groger et al.
patent: 5383016 (1995-01-01), Amir et al.
patent: 5825561 (1998-10-01), Ohguri

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