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. 14, 2021
Filed:
Aug. 22, 2018
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Takeo Matsushima, Tokyo, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
This light irradiation device is provided with: an LED substrate, on which a plurality of LED chips that emit ultraviolet light are arrayed in a first direction; and a cover capable of transmitting the ultraviolet light emitted from the LED chips. When a plane, on which an intersection point that the light emitted from the LED chips positioned at both ends in the first direction reach is positioned, said plane being parallel to an LED substrate surface, is specified as a reference plane Z, the distance between the LED substrate surface and the reference plane Zis represented by D (mm), and the distance between the LED substrate surface and a cover outer surface is represented by W (mm), W satisfies formula W<D.