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:
Aug. 11, 2026
Filed:
Jan. 26, 2022
Sony Group Corporation, Tokyo, JP;
Sony Group Corporation, Tokyo, JP;
Abstract
An image display apparatus capable of achieving uniform image quality while improving the use efficiency of incident light, including: an image forming unit that emits image light and converts the image light into parallel light for an angle of view; a light guide plate that allows the image light converted by the image forming unit to enter, to travel inside the light guide plate, and to be emitted outward from the light guide plate; a first diffraction grating in the light guide plate that diffracts the image light and causes the image light to travel inside the light guide plate; a second diffraction grating in the light guide plate that diffracts the image light traveling inside the light guide plate and emits the image light outward from the light guide plate; and a recycler diffraction grating that diffracts and recycles the image light emitted from the second diffraction grating.