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:
Jan. 09, 2024
Filed:
Mar. 18, 2020
Applicant:
Nikon Corporation, Tokyo, JP;
Inventor:
Akira Tokuhisa, Tokyo, JP;
Assignee:
NIKON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/3586 (2014.01);
U.S. Cl.
CPC ...
G01N 21/3586 (2013.01); G01N 2201/0697 (2013.01); G01N 2201/06113 (2013.01);
Abstract
A terahertz light detector includes: a light reception unit that receives terahertz light from a measured object; a pulse laser that generates pulse light; an optical member which the pulse light enters; and a control unit that controls the energy of the pulse light which enters the optical member, wherein the optical member has anomalous dispersion, and the light reception unit outputs a signal that is dependent on an intensity of terahertz light when the pulse light emitted from the optical member enters the light reception unit.