Light detector having a photodiode with bias control

Details Light detector having a photodiode with bias control Light detector having a photodiode with bias control

1985-09-25

1986-12-02

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250214RC, H01J 4014

Patent

active

046266763

ABSTRACT:
The detector comprises an avalanche photodiode for receiving a light beam, a circuit for measuring the mean current across the avalanche photodiode and a bias voltage source. That source is controlled by the circuit for applying to the photodiode a bias voltage such that the mean current across the diode be substantially equal to an adjustable set value.

REFERENCES:
patent: 3560755 (1971-02-01), Massy
patent: 3911268 (1975-10-01), Mori et al.
patent: 4454418 (1984-06-01), Walker
patent: 4479052 (1984-10-01), Suzuki
patent: 4516019 (1985-05-01), Eertink et al.

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