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:
Oct. 13, 2026
Filed:
Dec. 07, 2023
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Satoshi Kuzuhara, Osaka, JP;
Kazuhiro Minami, Osaka, JP;
Abstract
An optical system includes a light guide for guiding an image light ray output from a display element to a field of view region as a virtual image. The light guide includes a periodic structure defined in a body having a plate shape. The periodic structure has periodicity in three predetermined directions intersecting each other within a predetermined plane perpendicular to a thickness direction of the body. The periodic structure includes an in-coupling region configured to divide the image light ray into a plurality of image light rays and allow the plurality of image light rays to propagate within the body in a plurality of branch directions parallel to the three predetermined directions, respectively, and an exit region configured to allow the plurality of image light rays propagating in the plurality of branch directions within the body to emerge from the body toward the field of view region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile