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:
Sep. 16, 2025
Filed:
Oct. 03, 2024
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Wahei Agemizu, Osaka, JP;
Kazumasa Takata, Osaka, JP;
Abstract
A surface light-emitting device includes a plurality of light sources, a light guide that guides light emitted from the plurality of light sources, and a controller that controls turn-on operations of the plurality of light sources. The light guide includes a plurality of light controllers on which the light from the plurality of light sources are incident. The plurality of light controllers are disposed side by side in a first direction intersecting optical axes of the plurality of light controllers, the plurality of light sources include a first light source and a second light source, the first light source is disposed on one of the optical axes of the plurality of light controllers, the second light source is disposed at a position away from the optical axes of the plurality of light controllers, and the controller turns on at least one of the first light source and the second light source.