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:
May. 06, 2014
Filed:
Feb. 16, 2011
Hayato Tobe, Mito, JP;
Yoichi Sato, Hitachinaka, JP;
Hiroyasu Ishida, Tokai, JP;
Takayuki Wakui, Hitachinaka, JP;
Hayato Tobe, Mito, JP;
Yoichi Sato, Hitachinaka, JP;
Hiroyasu Ishida, Tokai, JP;
Takayuki Wakui, Hitachinaka, JP;
Hitachi High-Technologies Corporation, Tokyo, JP;
Abstract
A spectrophotometer includes a xenon flash lamp, a spectroscope, and a light detector, wherein the spectrophotometer is configured to arrange a low-pressure mercury lamp on a bundle of light rays between the xenon flash lamp and the spectroscope on an as needed basis upon a performance determination of the spectrophotometer, and has a shutter mechanism that switches between shielding the bundle of light rays emitted from the low-pressure mercury lamp and allowing the bundle of light rays to pass through. A processing unit determines the performance of the spectrophotometer by detecting each of the light intensities with the light detector at the time when shielding the bundle of light rays and at the time when allowing the bundle of light rays by operating the shutter mechanism.