LIGHT-EMITTING PANEL
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United States of America Patent
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Issued Date -
Apr 14, 2016
app pub date -
May 19, 2014
filing date -
May 23, 2013
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Abstract
The present invention relates to a light-emitting panel (1) comprising a first plurality of light-sources (11a-d) arranged in a first light-source layer (12) and a second plurality of light-sources (14a-d) arranged in a second light-source layer (15), with a light-diffusing layer (13) being arranged and configured to substantially only diffuse light emitted by light-sources in the first plurality of light-sources (11a-d) so that the light-emitting panel (1) is arranged to provide diffused illumination from the first light-source layer (12) and substantially un-diffused illumination from the second light-source layer (15). The light-emitting panel (1) also comprises a light sensor for sensing light that is emitted by light-sources in the first plurality of light-sources (11a-d) following reflection at an object arranged in front of the light-emitting panel (1), so that the operation of the light-emitting panel (1) can be controlled based on the signal provided by the light-sensor.
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