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 |
WO2010068538(A1) |
申请公布日期 |
2010.06.17 |
申请号 |
WO2009US66373 |
申请日期 |
2009.12.02 |
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 |
主分类号 |
H05B33/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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