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:
Feb. 02, 2021
Filed:
Jan. 10, 2018
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
The present invention has as its object the provision of an ultraviolet sterilizer that can reduce ultraviolet light in a wavelength region of 230 to 300 nm, which is harmful to the human body, and can output effective light in a wavelength region of 200 to 230 nm with high emission intensity. The ultraviolet sterilizer of the present invention is an ultraviolet sterilizer comprising: an ultraviolet light source; a lamp storage chamber for storing the ultraviolet light source; and a light guiding part for guiding light from the ultraviolet light source, in which a band pass filter for reducing ultraviolet light in a wavelength region harmful to a human body is provided at least one of a position between the light guiding part and the lamp storage chamber and a position of a light outputting leading end of the light guiding part, and an inner surface of the light guiding part is formed from an ultraviolet absorbing member that absorbs the ultraviolet light in the wavelength region harmful to the human body.