The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 14, 2020
Filed:
Oct. 12, 2017
Meta View, Inc., San Mateo, CA (US);
Ashish Ahuja, Mountain view, CA (US);
Jie Xiang, Mountain view, CA (US);
Meta View, Inc., San Mateo, CA (US);
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.