The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 29, 2024
Filed:
Jun. 27, 2019
Applicant:
Lumileds Llc, San Jose, CA (US);
Inventors:
Assignee:
Lumileds LLC, San Jose, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 33/46 (2010.01); H01L 33/04 (2010.01); H01L 33/20 (2010.01); H01L 33/32 (2010.01);
U.S. Cl.
CPC ...
H01L 33/46 (2013.01); H01L 33/04 (2013.01); H01L 33/20 (2013.01); H01L 33/32 (2013.01); H01L 2933/0083 (2013.01);
Abstract
An LED structure includes an epi layer grown on a substrate and a plurality of dielectric nanoantennas positioned within the epi layer. The dielectric antennas can be periodically arranged to reduce reabsorption of light and redirect oblique incident light to improve overall light coupling efficiency. Each of the dielectric nanoantennas can have a top, a bottom, a height less than 1000 nm and greater than 200 nm and a diameter less than 2000 nm and greater than 300 nm.