Illumination device with wake-up function
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United States of America Patent
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Apr 26, 2016
Grant Date -
Jun 11, 2015
app pub date -
Feb 20, 2015
filing date -
Oct 29, 2009
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Abstract
An illumination device with wake-up and/or fall-asleep functionality is disclosed. The illumination devices comprises at least one controllable light source; a control device for controlling the light source, wherein in a steady mode, color and intensity of the output light are maintained constant at a steady color value and a steady intensity value and in a wake-up mode, the intensity of the output light is gradually increased from zero to the steady intensity value and in a fall-asleep mode, the intensity of the output light is gradually decreased from the steady intensity value to zero.
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