Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
David A. Fattal0
Date of Patent
June 29, 2021
0Patent Application Number
157555350
Date Filed
June 30, 2016
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A light concentrating backlight includes a light guide to guide light and a diffraction grating configured to diffractively couple out a portion of the guided light as diffractively coupled-out light and to concentrate the diffractively coupled-out light into an eyebox. A near-eye display system includes the light guide and the diffraction grating, and further includes a light valve array configured to modulate the diffractively coupled-out light to form an image in the eyebox. The formed image is configured to be viewable within the eyebox by a user.
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