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:
Oct. 27, 2020
Filed:
Feb. 08, 2017
Inter-university Research Institute Corporation High Energy Accelerator Research Organization, Tsukuba-shi, Ibaraki, JP;
Osamu Tajima, Tsukuba, JP;
Taketo Nagasaki, Tsukuba, JP;
INTER-UNIVERSITY RESEARCH INSTITUTE CORPORATIONHIG, Tsukuba-shi, JP;
Abstract
The present invention separates radiation from an object by a polarization filterinto polarized light beams, causes one of the beams to enter a spectrum analyzerthrough a first optical path, causes the other to enter the spectrum analyzerthrough a second optical path, and measures the two-color ratio, while causes radiation of a blackbodyplaced in a vacuum ultralow temperature thermostatic chamberin a quasi-thermal equilibrium state at an ultralow temperature in vacuo to enter the polarization filterthrough a third optical path, separates the radiation into polarized light beams, causes the beams to each enter the same optical paths as the respective optical paths for the radiation of the object, causes the beams to enter the spectrum analyzer, measures the two-color ratio, and accurately obtains the temperature of the object on the basis of these two two-color ratios.