发明名称 Light emitting diode based lighting system with time division ambient light feedback response
摘要 A lighting system includes time division light output sensing and adjustment for ambient light. In at least one embodiment, time division light output sensing involves modulating power to a light emitting diode (LED) set, and the set of LEDs includes one or more LEDs. In at least one embodiment, each LED in the LED set is included in a single lamp, and, in at least one embodiment, the set of LEDs is contained in multiple lamps. In at least one embodiment, for each lamp, a controller modulates power to the LED set by selectively reducing power to the LED set using time division algorithm to allow a light sensor to sense the brightness of ambient light with a reduced contribution from the LED set. In at least one embodiment, a lighting system also includes time division light output sensing and adjustment for different spectra LEDs.
申请公布号 US8362707(B2) 申请公布日期 2013.01.29
申请号 US20090495206 申请日期 2009.06.30
申请人 CIRRUS LOGIC, INC.;DRAPER WILLIAM A.;MELANSON JOHN L. 发明人 DRAPER WILLIAM A.;MELANSON JOHN L.
分类号 H05B33/08;H05B37/02 主分类号 H05B33/08
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