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. 20, 2026
Filed:
Aug. 26, 2022
Applicant:
Yokogawa Electric Corporation, Tokyo, JP;
Inventors:
Assignee:
Yokogawa Electric Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/18 (2015.01); G01J 3/02 (2006.01); G02B 5/02 (2006.01); G02B 5/10 (2006.01);
U.S. Cl.
CPC ...
G02B 1/18 (2015.01); G01J 3/0254 (2013.01); G02B 5/0226 (2013.01); G02B 5/0284 (2013.01); G02B 5/10 (2013.01);
Abstract
An integrating sphere () of the present disclosure includes a hollow member () and a diffusive coating (), on the inner surface of the hollow member (), configured to scatter and reflect light from a light source within the hollow member () to yield diffused light. The diffusive coating () is coated with a hydrophobic coating (). The accuracy of optical measurements using the integrating sphere () is improved by suppressed moisture absorption of the integrating sphere () and suppressed fluctuations in the efficiency of the integrating sphere ().