1989-10-27
1990-12-11
Jackson, Jr., Jerome
357 17, H01L 29205, H01L 3106
Patent
active
049774336
ABSTRACT:
An optoelectronic device having an optical switch which can be turned on and off optically by a beam of light. The device includes the optical switch having a first optically variable resistance device connected in series with the switch and one side of a source of current, and a second optically variable resist device connected in series with the switch and one side of a source of current, and a second optically variable resistance device connected in series with the switch and the other side of the current source. The switch is capable of emitting light when a voltage above a threshold is applied thereto. By directing a light into the first optically variable resistance device the voltage applied across the switch is increased to a level just below the threshold and is raised to at least the threshold by directing a light into the switch so as to turn on the switch. The switch is turned off by directing a beam of light into the second optically variable resistance device which reduces the voltage applied across the switch below a holding voltage.
REFERENCES:
patent: 4152713 (1979-05-01), Copeland, III et al.
patent: 4163241 (1979-07-01), Hutson
patent: 4910571 (1990-03-01), Kasahara et al.
Cohen Donald S.
Hancock Earl C.
Jackson, Jr. Jerome
Jr. Carl Whitehead
University of Colorado Foundation Inc.
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