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:
Apr. 27, 2021
Filed:
Nov. 20, 2020
Omron Corporation, Kyoto, JP;
OMRON Corporation, Kyoto, JP;
Abstract
An illumination device according to one or more embodiments may include flat light guide plate units each including: a light guide plate, a light source unit, a cover covering a light emission surface of the light guide plate, and a case positioned on a back surface side of the light guide plate; and a base to which the light guide plate units are attached. The attachment surface may be divided into sections for attaching the light guide plate units such that the light guide plate units are laid over the attachment surface. Each of the sections may be provided with a circuit board for driving the light source unit, and a fixing portion for detachably fixing the light guide plate unit to the base. Each of the light guide plate units includes a visible sheet positioned between the light guide plate and the case.