Illumination control system for light emitters
AssigneeRadiant Research Limited
InventorsGeoffrey Howard Gillet Archenhold, Keith Anderson
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Abstract
A lighting fixture (1010) has a fluorescent tube (1012) and a plurality of emitters (1022-1032). A color sensor (1016) detects light that has been totally internally reflected within a diffuser (1014) and provides a color feedback signal to a feedback control circuit (1020) to control the light output from the fixture (1012).
Claims19
A lighting fixture comprising at least two emitters having different wavelength characteristics and a cover consisting of a diffuser through which light from said at least two emitters travels when they are activated, an optical sensor arranged to sample the combined output of said at least two emitters by detecting light that has been totally internally reflected in the cover, wherein the optical sensor is directly connected to said diffuser, and the optical sensor comprises a sensor responsive to color and intensity of the internally reflected light.
Dependencies are inferred from the claim text.