Optical comparator

Details Optical comparator Optical comparator

1978-11-27

1981-03-31

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

250231SE, H01J 4014

Patent

active

042595703

ABSTRACT:
An optical comparator having a transimpedance amplifier with feedback diodes coupled to a differential pair of transistors which have transfer functions matching those of the feedback diodes provides a linear interpolated signal in response to the comparison of two light signals.

REFERENCES:
patent: 3604941 (1971-09-01), Crum
patent: 3943367 (1976-03-01), Baker
patent: 4117320 (1978-09-01), Tomlinson et al.

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