Lighting source using solid state emitter and phosphor materials
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United States of America Patent
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Sep 20, 2016
Grant Date -
Apr 30, 2015
app pub date -
Jan 9, 2015
filing date -
May 5, 2004
priority date (Note) -
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Abstract
A light-emitting apparatus includes a substrate, a light source configured to emit light and arranged on the substrate, a phosphor layer being apart from the light source and configured to convert the light into forward transmitted light and backward transmitted light, and an optic device, being narrower than the substrate and having a transparent side wall, configured to direct at least a portion of the backward transmitted light through the transparent side wall and toward the substrate. In another aspect, a light-emitting apparatus includes a transparent base, a light source on the transparent base, a transparent material covering the light source, a phosphor layer on the transparent material, and a transparent wall on the phosphor layer.
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