Illumination – Light source and modifier – Condition responsive
Reexamination Certificate
2008-04-21
2010-11-09
Choi, Jacob Y (Department: 2885)
Illumination
Light source and modifier
Condition responsive
C362S431000, C362S153100, C362S642000
Reexamination Certificate
active
07828463
ABSTRACT:
A method and apparatus to control a lighting source such as a streetlight and modulate the output of the lighting source so that artificial illumination is reduced when moonlight is available to illuminate the area. The apparatus includes a sensor assembly for detecting moonlight in the night sky, an electronic circuit for processing the sensor signals in combination with moonrise and moonset data, and modulating the power applied to the lighting source in response to the intensity of the incident moonlight.
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Choi Jacob Y
Cohen Howard
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