Method for driving a photo-sensor by applying a pulse voltage to

Details Method for driving a photo-sensor by applying a pulse voltage to Method for driving a photo-sensor by applying a pulse voltage to

1988-09-12

1989-12-12

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

357 30, H01J 4014

Patent

active

048869627

ABSTRACT:
A method for driving a photo-sensor to produce an improved, stable output which exactly represents the incident light is disclosed. The photo-sensor has a pair of main electrodes found on a semiconductor layer with a photo-sensing area arranged therebetween. A semiconductor layer and an auxiliary electrode are formed on at least the photo-sensing area with an insulating area being interleaved therein. The auxiliary electrode is used for stabilizing the photosensing output and providing a signal proportional to the incident light. The method of driving such a photo-sensor includes applying a bias voltage to the auxiliary electrode in accordance with the carriers carrying a current of the semiconductor layer. A voltage of the same polarity as that of the bias voltage, but smaller in absolute value, is applied to the auxiliary electrode for a predetermine period of time in a non-read period of the photo-sensor to cause a next photo-sensor output to be read while a previous photo-sensor has been erased.

REFERENCES:
patent: 4040076 (1987-08-01), Kosonocky et al.
patent: 4096512 (1978-06-01), Polinsky
patent: 4141024 (1979-02-01), Kano et al.
patent: 4213137 (1980-07-01), Pines
patent: 4366503 (1982-12-01), Terakawa et al.
patent: 4532549 (1985-07-01), Ozaki et al.
patent: 4638361 (1987-01-01), Takeshita
patent: 4663535 (1987-05-01), Nakai et al.
patent: 4672221 (1987-06-01), Saito et al.
patent: 4719348 (1988-01-01), Saito et al.

Affiliated with

Also associated with

Rating

Method for driving a photo-sensor by applying a pulse voltage to does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for driving a photo-sensor by applying a pulse voltage to, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for driving a photo-sensor by applying a pulse voltage to will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2122974