Light emitting apparatus
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United States of America Patent
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May 8, 2012
Grant Date -
Dec 17, 2009
app pub date -
Aug 21, 2009
filing date -
Sep 4, 2007
priority date (Note) -
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Abstract
In a light-emitting apparatus using a silicone resin as a sealant of its light-emitting element, it is intended to prevent discoloration of its lead frame. A light-emitting element fixed to a lead frame is sealed with a sealed portion formed by a silicone resin. An average spin-spin relaxation time of the silicone resin is equal to or smaller than 100 microseconds at 25° C. at a resonance frequency of 25 MHz.
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