Compensated light sensor system
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United States of America Patent
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-
Oct 20, 1987
Grant Date -
N/A
app pub date -
Feb 15, 1985
filing date -
May 14, 1984
priority date (Note) -
Expired
status (Latency Note)
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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.
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