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    Annular axial flux motors
    1.
    发明授权
    Annular axial flux motors 有权

    公开(公告)号：US11973375B2

    公开(公告)日：2024-04-30

    申请号：US17612658

    申请日：2019-12-23

    Applicant: Magic Leap, Inc.

    Inventor： Arno Leon Konings ,  Charles Robert Schabacker ,  Jason Donald Mareno

    IPC: H02K1/27 ,  H02K1/2792 ,  H02K1/2795 ,  H02K3/26

    CPC classification number: H02K1/2795 ,  H02K1/2792 ,  H02K3/26 ,  H02K2211/03

    Abstract: An annular axial flux motor includes a rotor mounted on an annular subsection of a rotatable cam ring and a stator mounted on an annular subsection of a carrier frame. The rotor includes two Halbach arrays of permanent magnets spaced from each other on the cam ring along an axial direction. The stator includes multiple phase electrical windings printed on multiple layers of a printed circuit board (PCB) that are stacked along the axial direction. The multiple layers are positioned between the Halbach arrays, with active side of the Halbach arrays facing to opposite sides of the multiple layers. The Halbach arrays are configured to generate a symmetrical magnetic field and the multiple phase electrical windings are configured to have a same rotor-dependent torque constant, such that the stator can generate a constant torque to rotate the rotor and the cam ring within a finite travel range.

    ANNULAR AXIAL FLUX MOTORS
    3.
    发明公开
    ANNULAR AXIAL FLUX MOTORS 审中-公开

    公开(公告)号：US20240235299A1

    公开(公告)日：2024-07-11

    申请号：US18616809

    申请日：2024-03-26

    Applicant: Magic Leap, Inc.

    Inventor： Arno Leon Konings ,  Charles Robert Schabacker ,  Jason Donald Mareno

    IPC: H02K1/2795 ,  H02K1/2792 ,  H02K3/26

    CPC classification number: H02K1/2795 ,  H02K1/2792 ,  H02K3/26 ,  H02K2211/03

    Abstract: An annular axial flux motor includes a rotor mounted on an annular subsection of a rotatable cam ring and a stator mounted on an annular subsection of a carrier frame. The rotor includes two Halbach arrays of permanent magnets spaced from each other on the cam ring along an axial direction. The stator includes multiple phase electrical windings printed on multiple layers of a printed circuit board (PCB) that are stacked along the axial direction. The multiple layers are positioned between the Halbach arrays, with active side of the Halbach arrays facing to opposite sides of the multiple layers. The Halbach arrays are configured to generate a symmetrical magnetic field and the multiple phase electrical windings are configured to have a same rotor-dependent torque constant, such that the stator can generate a constant torque to rotate the rotor and the cam ring within a finite travel range.

    VARIABLE FOCUS ASSEMBLIES
    5.
    发明申请
    VARIABLE FOCUS ASSEMBLIES 审中-公开

    公开(公告)号：US20200371360A1

    公开(公告)日：2020-11-26

    申请号：US16882075

    申请日：2020-05-22

    Applicant: Magic Leap, Inc.

    Inventor： Timothy Mark Dalrymple ,  David Tinch ,  Michael Anthony Klug ,  Clinton Carlisle ,  Jason Donald Mareno ,  Arno Leon Konings ,  Christopher Peter Couste ,  Charles Robert Schabacker ,  Bach Nguyen

    IPC: G02B27/01 ,  G02B3/12

    Abstract: An example head-mounted display device includes a light projector, an optical assembly arranged to direct light from a light projector to a user, and an actuator module. The optical assembly includes a variable focus lens assembly including a rigid refractive component, a shaper ring defining an aperture, and a flexible lens membrane between the shaper ring and the rigid refractive component and covering the aperture. The refractive component, the shaper ring, and the lens membrane are arranged along an axis. The refractive component and the lens membrane define a chamber containing a volume of fluid. The actuator module is configured to adjust an optical power of the variable focus lens by moving the shaper ring relative to the refractive component along the axis, such that a curvature of the lens membrane in the aperture is modified.

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