PLANAR WAVEGUIDE APPARATUS WITH DIFFRACTION ELEMENT(S) AND SYSTEM EMPLOYING SAME
    5.
    发明申请
    PLANAR WAVEGUIDE APPARATUS WITH DIFFRACTION ELEMENT(S) AND SYSTEM EMPLOYING SAME 有权
    具有衍射元件的平面波导装置和使用其的系统

    公开(公告)号:US20150016777A1

    公开(公告)日:2015-01-15

    申请号:US14331218

    申请日:2014-07-14

    申请人: Magic Leap, Inc.

    IPC分类号: G02B6/34

    摘要: A waveguide apparatus includes a planar waveguide and at least one optical diffraction element (DOE) that provides a plurality of optical paths between an exterior and interior of the planar waveguide. A phase profile of the DOE may combine a linear diffraction grating with a circular lens, to shape a wave front and produce beams with desired focus. Waveguide apparati may be assembled to create multiple focal planes. The DOE may have a low diffraction efficiency, and planar waveguides may be transparent when viewed normally, allowing passage of light from an ambient environment (e.g., real world) useful in AR systems. Light may be returned for temporally sequentially passes through the planar waveguide. The DOE(s) may be fixed or may have dynamically adjustable characteristics. An optical coupler system may couple images to the waveguide apparatus from a projector, for instance a biaxially scanning cantilevered optical fiber tip.

    摘要翻译: 波导装置包括平面波导和至少一个在平面波导的外部和内部之间提供多条光路的光学衍射元件(DOE)。 DOE的相位曲线可以将线性衍射光栅与圆形透镜组合,以形成波前,并产生具有期望焦距的光束。 波导装置可以组装成多个焦平面。 DOE可能具有低衍射效率,并且平面波导在正常观看时可以是透明的,允许来自在AR系统中有用的周围环境(例如真实世界)的光的通过。 光可以在时间上依次通过平面波导返回。 DOE可以是固定的或可以具有动态可调特性。 光耦合器系统可以从投影仪将图像耦合到波导装置,例如双轴扫描悬臂光纤尖端。