LIGHT EMITTING ELEMENT STRUCTURE
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United States of America Patent
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Issued Date -
Mar 17, 2016
app pub date -
Dec 24, 2014
filing date -
Sep 15, 2014
priority date (Note) -
Abandoned
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Abstract
A light emitting element structure includes a light emitting unit configured to emit light; a package unit configured to cover the light emitting unit; a transparent light guide structure arranged on the package unit; and a first periodic sub-wavelength microstructure formed on the transparent light guide structure, wherein a plurality of holes of the first periodic sub-wavelength microstructure form a periodic pattern, and a distance between two adjacent holes of the first periodic sub-wavelength microstructure is smaller than λ/n, λ is a peak wavelength of light passing through the package unit from the light emitting unit, and n is a refractive index of the first periodic sub-wavelength microstructure.
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