LED with patterned surface features based on emission field patterns

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United States of America Patent

PATENT NO 9876141
SERIAL NO

14900143

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The escape surface of a light emitting element includes features (310) that include sloped surfaces (312, 314) that have angles of inclination that are based on the direction of peak light output from the light emitting element. If the light output exhibits a number of lobes at different directions, the sloped surfaces (312, 314) may have a corresponding number of different angles of inclination (as in FIGS. 3b and 3c). To minimize the re-injection of light into adjacent features, adjacent features may be positioned to avoid having surfaces that directly face each other. The features may be shaped or positioned to provide a pseudo-random distribution of inclined surfaces across the escape surface, and multiple roughening processes may be used.

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Patent Owner(s)

Patent OwnerAddress
LUMILEDS LLC370 WEST TRIMBLE ROAD SAN JOSE CA 95131

International Classification(s)

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  • 2014 Application Filing Year
  • H01L Class
  • 23828 Applications Filed
  • 21803 Patents Issued To-Date
  • 91.51 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances2014201520162017201820192020202120222023202420250255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Lopez, Toni Eindhoven, NL 82 346

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Patent Citation Ranking

  • 5 Citation Count
  • H01L Class
  • 23.71 % this patent is cited more than
  • 7 Age
Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges3689997611243481558461392216162801 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +05001000150020002500300035004000450050005500600065007000750080008500900095001000010500

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