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. 31, 2018
Filed:
Jun. 06, 2017
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventor:
Hitoshi Ueno, Shiojiri, JP;
Assignee:
SEIKO EPSON CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); G01R 33/26 (2006.01); G01R 33/032 (2006.01); G01R 33/24 (2006.01);
U.S. Cl.
CPC ...
G01R 33/26 (2013.01); G01R 33/032 (2013.01); G01R 33/243 (2013.01);
Abstract
A magnetic field measuring apparatus includes a first cell and a second cell in which alkali metal atoms are respectively enclosed, a light guide that enters laser light into the first cell and the second cell, and a position adjustment mechanism, and a position of a second reference surface with respect to a first reference surface is adjusted and orientations of optical axes of a beam light relating to the first reference surface and a beam light relating to the second reference surface are the same direction.