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:
Mar. 08, 2022
Filed:
May. 29, 2017
Applicant:
Kowa Company, Ltd., Aichi, JP;
Inventor:
Katsumi Yabusaki, Tokyo, JP;
Assignee:
Kowa Company, Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61B 6/00 (2006.01); A61B 5/05 (2021.01); A61B 3/00 (2006.01); A61B 3/14 (2006.01); A61B 3/10 (2006.01);
U.S. Cl.
CPC ...
A61B 3/101 (2013.01); A61B 3/0025 (2013.01); A61B 3/14 (2013.01); A61B 3/145 (2013.01);
Abstract
Provided are a method and a device for evaluating a tear fluid to objectively evaluate and determine the severity of dry eye or the like. Color information is acquired in a predetermined region of a tear fluid interference fringe image, a numerical value representing a color diversity is calculated from the color information acquired, and the numerical value representing the color diversity thus calculated is used as an index for evaluating a tear fluid state.