Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Ashish Ahuja0
Jie Xiang0
Date of Patent
January 14, 2020
Patent Application Number
15782613
Date Filed
October 12, 2017
Patent Citations Received
0
...
Patent Primary Examiner
Patent abstract
Systems and methods of image projection are presented herein. Image projection may be facilitated by a layered waveguide and/or other components. The layered waveguide may have an input portion and a presentation portion. Light may be received from a display at the input portion and output at the presentation portion. Th input portion may include coupling optical features. The presentation portion ma include presentation optical features forming Bragg diffraction gratings. Relative proportions of light emitted by the display and coupled onto the layers may be controlled adjust a cumulative focal length of the layered waveguide.
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