ELECTRONIC DEVICE WITH A TUNABLE LENS
    1.
    发明申请

    公开(公告)号:WO2020060716A1

    公开(公告)日:2020-03-26

    申请号:PCT/US2019/047686

    申请日:2019-08-22

    Applicant: APPLE INC.

    Abstract: A lens module in a head-mounted device may include a fluid-filled chamber, a semi- rigid lens element that at least partially defines the fluid-filled chamber, and at least one actuator configured to selectively bend the semi-rigid lens element. The semi-rigid lens element may become rigid along a first axis when the lens element is curved along a second axis perpendicular to the first axis. Six actuators that are evenly distributed around the periphery of the semi-rigid lens element may be used to control the curvature of the semi-rigid lens element. The semi-rigid lens element may initially be planar or non-planar. For example, the semi-rigid lens element may initially have a spherically convex surface and a spherically concave surface. A tunable spherical lens may be incorporated into the lens module to offset a parasitic spherical lens power from the semi-rigid lens element.

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