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:
Apr. 18, 2023
Filed:
Jan. 08, 2020
Google Llc, Mountain View, CA (US);
Shreyas Potnis, Kitchener, CA;
Timothy Paul Bodiya, Toronto, CA;
GOOGLE LLC, Mountain View, CA (US);
Abstract
There is provided an optical element which includes a medium including a diffractive optical element (DOE). The medium is to receive a beam of light via a light guide. If the beam is incident upon the medium at an incidence angle within a first range of angles, the DOE is to direct a first portion of the beam out of the light guide along a second direction to form an outcoupled beam, and cause a second portion of the beam to propagate towards a surface of the light guide. Furthermore, if the incidence angle is within a second range of angles, the DOE is to split from the beam a third portion and a fourth portion each propagating towards the surface of the light guide. The third and fourth portions are to propagate along a third and a fourth direction respectively, which third direction is different than the fourth direction.