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.

Date of Patent:
Oct. 13, 2026

Filed:

Jun. 27, 2023
Applicant:

Amazon Technologies, Inc., Seattle, WA (US);

Inventors:

Erfan M. Fard, Tucson, AZ (US);

Chen Liang, Tucson, AZ (US);

Arkady Bablumyan, Escondido, CA (US);

Assignee:

Amazon Technologies, Inc., Seattle, WA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G03H 1/02 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G03H 1/0272 (2013.01); G02B 2027/0174 (2013.01); G03H 2260/12 (2013.01);
Abstract

Techniques for an optical waveguide with multiple holographic layers are described herein. In an example, a system includes an optical waveguide substrate and a first holographic layer coupled to the optical waveguide substrate. The first holographic layer is configured to diffract a first portion of a light beam at a diffraction angle relative to a surface of the optical waveguide substrate. A remaining portion of the light beam is output from the first holographic layer without being diffracted by the first holographic layer. The system also includes a second holographic layer coupled to the optical waveguide substrate, separated from the first holographic layer by a distance, and configured to receive some or all the remaining portion of the light beam and diffract a second portion of the light beam at the diffraction angle.


Find Patent Forward Citations

Fard, Erfan. (2026). Optical waveguide with multiple holographic layers (U.S. Patent No. 12761478). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12761478

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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