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. 05, 2021
Filed:
Mar. 17, 2018
Applicant:
Machine Vision Lighting Inc., Tokyo, JP;
Inventor:
Shigeki Masumura, Tokyo, JP;
Assignee:
Machine Vision Lighting Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/88 (2006.01); G01N 21/25 (2006.01); G01N 21/47 (2006.01); G01N 21/956 (2006.01); G01N 21/21 (2006.01);
U.S. Cl.
CPC ...
G01N 21/8806 (2013.01); G01N 21/21 (2013.01); G01N 21/255 (2013.01); G01N 21/47 (2013.01); G01N 21/8851 (2013.01); G01N 21/956 (2013.01); G01N 2021/8845 (2013.01); G01N 2021/8854 (2013.01); G01N 2021/95676 (2013.01);
Abstract
Provided is an inspection lighting device with which, even when changes in light that occur at respective feature points on an object to be inspected are small, the amounts of those changes in light can be determined across the entire field-of-view range, and the feature points can be detected under exactly the same conditions.