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:
Dec. 27, 2022
Filed:
Sep. 20, 2019
Applicant:
Ventana Medical Systems, Inc., Tucson, AZ (US);
Inventors:
Michael J. Thompson, Tucson, AZ (US);
Charles Nathan Hassen, Tucson, AZ (US);
Assignee:
Ventana Medical Systems, Inc., Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 35/00 (2006.01); G01N 1/31 (2006.01); G02B 21/34 (2006.01); G01J 1/02 (2006.01); G02B 1/11 (2015.01); B65H 7/14 (2006.01);
U.S. Cl.
CPC ...
G01N 1/312 (2013.01); G01J 1/0238 (2013.01); G01N 35/00029 (2013.01); G02B 1/11 (2013.01); G02B 21/34 (2013.01); B65H 7/14 (2013.01); G01N 2035/00039 (2013.01); G01N 2035/00059 (2013.01); G01N 2035/00079 (2013.01);
Abstract
A system is capable of detecting substrates and can differentiate between zero, one, or multiple transparent or semi-transparent substrates in a stack. The system can include an optical sensor, an optically anti-reflective element, and a detector. The optical sensor outputs light towards the optically anti-reflective element. The light detector is positioned to detect light from the light source that is reflected by substrates, if any, positioned within a detection zone between the optically anti-reflective element and the detector.