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:
Sep. 25, 2018
Filed:
Feb. 12, 2016
Applicant:
Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;
Inventors:
Assignee:
Yokogawa Electric Corporation, Musashino-shi, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/00 (2006.01); G02B 17/00 (2006.01); G01N 21/59 (2006.01); G01N 21/85 (2006.01); G01N 21/03 (2006.01);
U.S. Cl.
CPC ...
G01N 21/59 (2013.01); G01N 21/8507 (2013.01); G02B 17/006 (2013.01); G01N 2021/0307 (2013.01); G01N 2201/0637 (2013.01); G01N 2201/08 (2013.01); G01N 2201/086 (2013.01);
Abstract
An optical element includes a main body formed of a light transmissive material and including an arc-shaped optical path, and a gap formed on the arc-shaped optical path in the main body. The gap may have a notch shape. The main body may have a semicircular plate shape. The main body may have a hemispherical shape.