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:
Jul. 23, 2024

Filed:

Sep. 09, 2020
Applicant:

Google Llc, Mountain View, CA (US);

Inventors:

Bergen Fletcher, Kitchener, CA;

Antanas Matthew Broga, Kitchener, CA;

Assignee:

GOOGLE LLC, Mountain View, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 27/01 (2006.01); G02B 26/08 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0172 (2013.01); G02B 26/0833 (2013.01); G02B 2027/0178 (2013.01); G09G 2320/0626 (2013.01);
Abstract

A system includes a light source to generate a source light, a spatial modulator to receive the source light. A display element to receive the source light from the spatial modulator and to direct the source light towards an eye, and a controller. The controller is to receive initial image data for an image to be displayed, the image comprising a plurality of pixels having a plurality of brightness levels, determine an image power based on the brightness levels, and determine an excess power status based on a comparison of the image power to a specified power threshold. Responsive to the excess power status indicating the image power is to exceed the specified power threshold, the controller is to reduce the brightness levels to generate updated image data, and control the light source and the spatial modulator to project the image using the updated image data.


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