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.:

US 11282540 B1

Date of Patent:

Mar. 22, 2022

Filed:

Jan. 09, 2020

Holographic optical elements having lightguides with multiple hologram recordings and methods of making the same

Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Shreyas Potnis, Kitchener, CA;

Jackie Lynn Mills, Kitchener, CA;

Timothy Paul Bodiya, Toronto, CA;

Assignee:

Google LLC, Mountain View, CA (US);

Attorney:

Primary Examiner:

Jennifer D Carruth

Int. Cl.

CPC ...

G03H 1/02 (2006.01); G11B 7/0065 (2006.01); G02B 5/32 (2006.01); G03H 1/26 (2006.01); G03H 1/04 (2006.01);

U.S. Cl.

CPC ...

G11B 7/0065 (2013.01); G02B 5/32 (2013.01); G03H 1/0248 (2013.01); G03H 1/0402 (2013.01); G03H 1/265 (2013.01); G03H 2001/0439 (2013.01); G03H 2260/12 (2013.01);

Abstract

There are provided holographic optical elements (HOEs) and methods of making the same. An example of such methods includes recording a first hologram in a contiguous holographic recording medium of the HOE. The first hologram may receive a beam of light and direct at least a portion of the beam into a light guide to form an incoupled beam. The method also includes recording a second hologram in the contiguous holographic recording medium. The second hologram may receive at least a portion of the incoupled beam and direct the portion of the incoupled beam out of the light guide to form an outcoupled beam. In addition, the method includes affixing the holographic recording medium to the light guide.

Find Patent Forward Citations

Potnis, Shreyas. (2022). Holographic optical elements having lightguides with multiple hologram recordings and methods of making the same (U.S. Patent No. 11282540). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11282540

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