Invention Grant
- Patent Title: Method and system for generating a virtual user interface related to a totem
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Application No.: US16410617Application Date: 2019-05-13
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Publication No.: US11060858B2Publication Date: 2021-07-13
- Inventor: Rony Abovitz , Brian T. Schowengerdt , Mathew D. Watson
- Applicant: MAGIC LEAP, INC.
- Applicant Address: US FL Plantation
- Assignee: MAGIC LEAP, INC.
- Current Assignee: MAGIC LEAP, INC.
- Current Assignee Address: US FL Plantation
- Agency: Vista IP Law Group, LLP
- Main IPC: G01B11/30
- IPC: G01B11/30 ; G06F3/01 ; G06F3/00 ; G06F3/0488 ; G02B27/42 ; G02B6/10 ; G06F16/783 ; G06K9/00 ; G06F3/0484 ; A61B34/10 ; A63F13/428 ; A63F13/213 ; G16H40/67 ; H04B10/25 ; G06T19/00 ; G06K9/62 ; G02B27/01 ; G02B6/34 ; G06Q30/06 ; G06F3/03 ; G06F3/0487 ; G06F3/0481 ; G06F3/0485 ; A63F13/00 ; G06T7/60 ; G16H40/20 ; G16H40/00

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
- US1237848A Condenser. Public/Granted day:1917-08-21
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