Invention Grant
- Patent Title: Optical system having a return planar waveguide
- Patent Title (中): 具有返回平面波导的光学系统
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Application No.: US14707354Application Date: 2015-05-08
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Publication No.: US09541383B2Publication Date: 2017-01-10
- Inventor: Rony Abovitz , Brian T. Schowengerdt , Mathew D. Watson
- Applicant: Magic Leap, Inc.
- Applicant Address: US FL Dania Beach
- Assignee: MAGIC LEAP, INC.
- Current Assignee: MAGIC LEAP, INC.
- Current Assignee Address: US FL Dania Beach
- Agency: Vista IP Law Group LLP
- Main IPC: G02B6/10
- IPC: G02B6/10 ; G01B11/30 ; G06F3/01 ; G06F3/00 ; G06F3/0488 ; G06K9/00 ; G06T19/00 ; G06K9/62 ; G06T7/00 ; G02B27/01 ; G02B6/34 ; H04B10/25 ; G06F19/00 ; G06Q30/06 ; G02B27/42 ; G06F3/03 ; G06F3/0487 ; G06F3/0481 ; G06F3/0484 ; G06F3/0485 ; A63F13/00 ; A63F13/428 ; A63F13/213

Abstract:
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.
Public/Granted literature
- US09488474B2 Optical system having a return planar waveguide Public/Granted day:2016-11-08
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