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:
Jul. 16, 2019
Filed:
Apr. 12, 2017
Applicant:
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Inventors:
Yuichi Sasaki, Tokyo, JP;
Takumi Yamane, Tokyo, JP;
Assignee:
USHIO DENKI KABUSHIKI KAISHA, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 61/30 (2006.01); H01J 61/16 (2006.01); H01J 61/36 (2006.01); H01J 61/04 (2006.01);
U.S. Cl.
CPC ...
H01J 61/30 (2013.01); H01J 61/16 (2013.01); H01J 61/36 (2013.01); C03B 2201/075 (2013.01); H01J 61/04 (2013.01);
Abstract
A discharge lamp includes a discharge vessel. A xenon gas is sealed within the discharge vessel so as to serve as a light emitting gas, the discharge vessel is made from quartz glass, a pair of electrodes are arranged so as to face each other in the discharge vessel, and the discharge vessel has a chip portion. The chip portion is made from a glass member that has a composition different from that of the discharge vessel, and the glass member has a transmittance of 50% or more over a wavelength range from 170 nm to 300 nm.