Invention Grant
- Patent Title: Optical system and method for providing compressed eyebox
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Application No.: US17064567Application Date: 2020-10-06
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Publication No.: US11796813B2Publication Date: 2023-10-24
- Inventor: Ningfeng Huang , Oleg Yaroshchuk , Heeyoon Lee , Giuseppe Calafiore , Barry David Silverstein
- 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: MILLBURN IP PLLC
- Main IPC: G02B27/01
- IPC: G02B27/01 ; G02B27/00 ; F21V8/00 ; G02B3/00

Abstract:
A system includes one or more waveguides, and a plurality of grating sets coupled with the one or more waveguides. A plurality of combinations of gratings from the grating sets are configurable to direct an image light to propagate through a plurality of sub-eyeboxes forming an uncompressed eyebox. The system also includes a controller configured to selectively configure one or more combinations of gratings to operate in a diffraction state to direct the image light to propagate through one or more sub-eyeboxes forming a compressed eyebox having a size smaller than a size of the uncompressed eyebox.
Public/Granted literature
- US20210199970A1 OPTICAL SYSTEM AND METHOD FOR PROVIDING COMPRESSED EYEBOX Public/Granted day:2021-07-01
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