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:
Dec. 28, 2021
Filed:
Apr. 15, 2020
Facebook Technologies, Llc, Menlo Park, CA (US);
Matthieu Charles Raoul Leibovici, Seattle, WA (US);
Jasmine Soria Sears, Kirkland, WA (US);
Christophe Antoine Hurni, Seattle, WA (US);
Nathan Matsuda, Seattle, WA (US);
Guohua Wei, Redmond, WA (US);
Yu Shi, Redmond, WA (US);
John Goward, Redmond, WA (US);
Facebook Technologies, LLC, Menlo Park, CA (US);
Abstract
An optical assembly is configured to receive visible scene light at a backside of the optical assembly and to direct the visible scene light on an optical path toward the eyeward side. The optical assembly also includes a dimming layer disposed on the optical path, where the dimming layer includes a photochromic material that is configured to darken in response to exposure to a range of light wavelengths. An activation layer, included in the optical assembly, is also disposed on the optical path and includes an in-field dimmer. The in-field dimmer is configured to selectively emit an activation light within the range of light wavelengths to activate a darkening of a region of the dimming layer to dim the visible scene light within the region.