Light-emitting device
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United States of America Patent
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Issued Date -
Oct 15, 2009
app pub date -
Apr 14, 2009
filing date -
Apr 15, 2008
priority date (Note) -
Abandoned
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Abstract
Light-emitting device (1) comprising a body which is at least substantially transparent in the visible spectral range and a light-generating device (5) which is arranged outside the body, wherein a light-emitting region is formed inside the body and wherein there is formed in the body, as a result of the arrangement of a medium having a lower index of refraction, at least in certain portions a substantially polyhedral, cylindrical or conical interface (6) which totally reflects radiation (4) which has been emitted by the light-generating device and entered the body, at least in certain portions, wherein this totally reflected radiation (4') issues from the body so as to at least partly form the light-emitting region, wherein the interface (6) forms a cavity (3) inside the body.
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