Compensated light sensor system

Details Compensated light sensor system Compensated light sensor system

1985-02-15

1987-10-20

Chatmon, Saxfield

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Plural radiant energy responsive devices

250205, 315151, 315156, H05B 3702, H05B 3704, H05B 4136

Patent

active

047016698

ABSTRACT:
A light sensing compensation system is provided for controlling the level of light at a workplane so that the ratio of the light at the ceiling where the sensor means is located to the level of controlled light at the workplane is maintained substantially constant as daylight entering the room varies.

REFERENCES:
patent: 2052146 (1936-08-01), Moore
patent: 2882450 (1959-04-01), McCabe
patent: 3449629 (1969-06-01), Wigert et al.
patent: 3965388 (1976-06-01), Brisk
patent: 4135116 (1979-01-01), Smith
patent: 4236101 (1980-11-01), Luchaco

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