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:
Feb. 01, 2022

Filed:

Feb. 02, 2021
Applicant:

Facebook Technologies, Llc, Menlo Park, CA (US);

Inventors:

Wanli Chi, Sammamish, WA (US);

Yijing Fu, Redmond, WA (US);

Pasi Saarikko, Kirkland, WA (US);

Assignee:

Facebook Technologies, LLC, Menlo Park, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); H04N 5/235 (2006.01); H04N 5/225 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 27/0176 (2013.01); G02B 27/0179 (2013.01); H04N 5/2251 (2013.01); H04N 5/235 (2013.01); G02B 2027/0174 (2013.01); G02B 2027/0178 (2013.01);
Abstract

A scanning display includes a light source and a scanning assembly. The light source is configured to emit source light from a plurality of rows of emitters that are arranged parallel to a first dimension. The scanning assembly includes at least one optical element that conditions the source light. The scanning assembly is configured to scan the conditioned source light along a second dimension that is orthogonal to the first dimension. The scanning assembly configured to output the scanned light over a portion of a target area of an output waveguide. And a brightness of the scanned image light offsets dimming caused by the output waveguide expanding the scanned light in at least one dimension.


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