High powered light emitter packages with compact optics
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United States of America Patent
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May 30, 2017
Grant Date -
Nov 18, 2004
app pub date -
Apr 29, 2004
filing date -
Apr 30, 2003
priority date (Note) -
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status (Latency Note)
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Abstract
A light emitter includes a planar supporting surface, a light source positioned on the spreader region, and an encapsulant positioned on the spreader region to surround the light source. Except where constrained by adhesion to the planar supporting surface, the encapsulant is capable of expanding and contracting in response to a change in temperature so that forces caused by differences in the coefficient of thermal expansion between the different components is minimized. One or more reflective elements can be positioned proximate to the light source to increase the light emitting efficiency of the light emitter. The reflective elements can include a reflective layer on the spreader region and/or a reflective layer on a portion of the encapsulant.
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