Light sensor having an integration circuit

Details Light sensor having an integration circuit Light sensor having an integration circuit

1992-05-28

1993-08-03

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214A, H01J 4014

Patent

active

052331806

ABSTRACT:
A light sensor device which uses semiconductors, can assure linearity even with low light intensity, and has a fast response time provides a voltage output proportional to a photoelectric current obtained from the output of an operational amplifier by accumulating the photoelectric current from a photodiode using the operational amplifier and an integration capacitance connected in parallel to the operational amplifier.

REFERENCES:
patent: 4165471 (1979-08-01), Ahrenkeil
patent: 4459475 (1984-07-01), Flint et al.
patent: 4789777 (1988-12-01), Takami et al.

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