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. 25, 2016
Filed:
Feb. 27, 2013
National University Corporation Kagawa University, Takamatsu-shi, Kagawa, JP;
Ichiro Ishimaru, Takamatsu, JP;
NATIONAL UNIVERSITY CORPORATION KAGAWA UNIVERSITY, Takamatsu-shi, JP;
Abstract
The present invention causes measurement light, emitted from an object and to be measured, to enter a fixed mirror and a movable mirror forming interfering light between the measurement light reflected by the fixed mirror and measurement light reflected by the movable mirror. Change to the intensity of the interference light of measurement light is obtained by moving the movable mirror unit, acquiring the interferogram of measurement light. Reference light of a narrow wavelength band included in a wavelength band of the measurement light enters the fixed mirror and the movable mirror, forming interference light of the reference light. The movable mirror is moved to correct the interferogram of measurement light, which is at the same wavelength as the reference light in the measurement light, and the reference light, and a spectrum of the measurement light is acquired based on the corrected interferogram.