Invention Grant
- Patent Title: Offsetting image light aberration due to waveguide movement in display assemblies using information from piezoelectric movement sensors
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Application No.: US17846898Application Date: 2022-06-22
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Publication No.: US11719942B2Publication Date: 2023-08-08
- Inventor: Yuri Toride
- Applicant: Meta Platforms Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Meta Platforms Technologies, LLC
- Current Assignee: Meta Platforms Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Fenwick & West LLP
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G09G3/00

Abstract:
A display assembly monitors movements in a waveguide assembly and corrects for aberrations in image light caused by the monitored movements. For example, an artificial reality headset may include a display assembly that monitors for changes in shape or displacement of waveguide assemblies that generate three dimensional images for display with a real world environment. The display assembly includes movement sensors (e.g., piezoelectric movement sensors) coupled to the waveguide assembly. The movement sensors monitor the movement of the waveguide assembly and provide the monitored movement to a display controller that generates instructions for correcting aberrations in the image light.
Public/Granted literature
- US20220413296A1 OFFSETTING IMAGE LIGHT ABERRATION DUE TO WAVEGUIDE MOVEMENT IN DISPLAY ASSEMBLIES Public/Granted day:2022-12-29
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