Photosensor

Details Photosensor Photosensor

2005-12-13

2005-12-13

Allen, Stephone B. (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S214100, C257S080000

Reexamination Certificate

active

06974945

ABSTRACT:
A photosensor comprises an emitter that emits light when a forward voltage is applied to a junction between semiconductor regions different in conduction type, wherein the photosensor detects visible light from a current or a voltage from the emitter based on the wavelength of the visible light applied to the emitter.

REFERENCES:
patent: 3427460 (1969-02-01), Kleinknecht
patent: 4349906 (1982-09-01), Scifres et al.
patent: 4847846 (1989-07-01), Sone et al.
patent: 355086174 (1980-06-01), None
patent: 2000-124484 (2000-04-01), None
patent: 2001-305976 (2001-11-01), None

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