Invention Grant
- Patent Title: Light projection system including an optical assembly for correction of differential distortion
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Application No.: US17217107Application Date: 2021-03-30
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Publication No.: US11598966B2Publication Date: 2023-03-07
- Inventor: Michael Patrick Schaub , Byron Taylor , Yijing Fu
- 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: G02B26/08
- IPC: G02B26/08 ; G02B27/01 ; G02B26/10

Abstract:
A light projection system includes a light source configured to emit image light and an optical assembly configured to provide positive optical power to the image light and optically correct the image light. The optical assembly comprises a plurality of optical elements configured to correct differential distortion related to the image light across a field of view (FOV) within a threshold amount. The differential distortion is corrected based in part on asymmetry of the plurality of optical elements relative to an optical axis shared by the plurality of optical elements.
Public/Granted literature
- US20210215937A1 LIGHT PROJECTION SYSTEM INCLUDING AN OPTICAL ASSEMBLY FOR CORRECTION OF DIFFERENTIAL DISTORTION Public/Granted day:2021-07-15
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