Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
November 16, 2021
0Patent Application Number
165974550
Date Filed
October 9, 2019
0Patent Citations Received
Patent Primary Examiner
Patent abstract
An optical coupling structure is disposed on a light output surface of a semiconductor LED to facilitate coupling of light emitted by the semiconductor LED through the light output surface. The optical coupling structures comprise light scattering particles and/or air voids embedded in or coated with a thin layer of a material that has an index of refraction close to or matching the index of refraction of the material forming the light output surface of the semiconductor LED.
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