LIGHTING DEVICE, LIGHTING KIT AND LUMINAIRE
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United States of America Patent
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Issued Date -
Apr 21, 2016
app pub date -
Mar 26, 2014
filing date -
Mar 26, 2013
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Abstract
Disclosed is a lighting device comprising a solid state lighting element (20, 21, 101,102); a reflective arrangement (10) for reflecting luminous output of the solid state lighting element, the reflective arrangement comprising: a reflective conical central section (12) on a central axis of the lighting device; and an annular reflective body around the reflective conical central section, said body comprising an ellipsoid surface (14) having a first focal point lying inside the reflective conical central section and a second focal point, wherein the solid state lighting element is located at the second focal point; wherein the reflective conical central section (12) is movably mounted along said central axis. A lighting kit and luminaire including such a lighting device are also disclosed.
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