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:
Feb. 13, 2024
Filed:
Mar. 04, 2021
Applicant:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Inventors:
Gangok Lee, Bothell, WA (US);
Zhiqiang Liu, Redmond, WA (US);
Wei Zhou, Sammamish, WA (US);
Akash Arora, Normandy Park, WA (US);
Angus Wu, Bellevue, WA (US);
Assignee:
Huawei Technologies Co., Ltd., Shenzhen, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/122 (2006.01); G02B 6/132 (2006.01); G03F 7/16 (2006.01);
U.S. Cl.
CPC ...
G02B 6/1223 (2013.01); G02B 6/132 (2013.01); G03F 7/16 (2013.01);
Abstract
Disclosed is an Augmented Reality (AR) optical waveguide. The AR optical waveguide includes a transparent substrate including a user proximate surface and a user distal surface. The AR optical waveguide also includes a slant etched diffractive grating included on the user distal surface of the transparent substrate. The slant etched diffractive grating includes a refractive index of greater than or equal to 2.0.