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:
Jul. 14, 2026
Filed:
May. 09, 2022
Applicant:
Visera Technologies Company Limited, Hsin-Chu City, TW;
Inventors:
Assignee:
VisEra Technologies Company Limited, Hsin-Chu City, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); F21V 8/00 (2006.01); G02B 5/18 (2006.01); G02B 27/30 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 5/1871 (2013.01); G02B 6/0026 (2013.01); G02B 27/30 (2013.01);
Abstract
A waveguide structure is provided. The waveguide structure includes waveguide combiners stacked one upon the other. Each waveguide combiner includes a waveguide plate and an input coupler disposed on the waveguide plate. The input coupler of at least one waveguide combiner includes first grating pillars, and each first grating pillar has a gradually changing refractive index.