Abstract: A self-contained light sensor head (10) has a photodiode (18) operable to produce an electrical response proportional to light intensity, and an amplifier (20) that produces an output signal from the photodiode's response. The head (10) further includes a gain control circuit, for suitably controlling the gain of the output signal, and has noise and oscillation control circuits. The latter circuits permit the sensor to generate a low voltage output signal that is compatible for input directly to an analog computer.
Type:
Grant
Filed:
May 15, 1987
Date of Patent:
July 19, 1988
Assignee:
Multipoint Control Systems, Incorporated