Invention Grant
- Patent Title: Varifocal optical assembly providing astigmatism compensation
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Application No.: US16780770Application Date: 2020-02-03
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Publication No.: US11243448B2Publication Date: 2022-02-08
- Inventor: Afsoon Jamali , Brian Wheelwright , Douglas Robert Lanman
- Applicant: Facebook Technologies, LLC
- Applicant Address: US CA Menlo Park
- Assignee: Facebook Technologies, LLC
- Current Assignee: Facebook Technologies, LLC
- Current Assignee Address: US CA Menlo Park
- Agency: Shumaker & Sieffert, P.A.
- Main IPC: G02F1/29
- IPC: G02F1/29 ; G02B27/01

Abstract:
An astigmatism compensation optical assembly includes a first liquid crystal layer disposed between opposing substrates. The astigmatism compensation optical assembly also includes a first electrode pattern disposed on at least one substrate. The first electrode pattern includes a set of parallel conductors each having a length proportional to the longest dimension of the clear aperture of the liquid crystal lens, and the parallel conductors are configured to generate a voltage distribution within the liquid crystal layer that results in the liquid crystal layer exhibiting cylindrical focal power.
Public/Granted literature
- US20210240051A1 VARIFOCAL OPTICAL ASSEMBLY PROVIDING ASTIGMATISM COMPENSATION Public/Granted day:2021-08-05
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