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:
Apr. 19, 2022
Filed:
Dec. 13, 2018
Applicant:
Sicpa Holding SA, Prilly, CH;
Inventors:
Frédéric Pierson, Pully, CH;
Joël Bonny, Lausanne, CH;
Samuel Brügger, Tavannes, CH;
Daniel Zahnd, Paudex, CH;
Assignee:
SICPA HOLDING SA, Prilly, CH;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 21/27 (2006.01); G06K 19/06 (2006.01); G01N 21/31 (2006.01);
U.S. Cl.
CPC ...
G01N 21/27 (2013.01); G06K 19/0614 (2013.01); G06K 19/06112 (2013.01); G01N 2021/3181 (2013.01);
Abstract
The disclosed scanner for detecting a decay time of light emitted by a luminescent material has a control unit operable to adapt the drive current, or the value of the drive voltage, powering its light source to accordingly adapt the intensity of excitation light delivered to the luminescent material so that its high sensitivity light sensor can reliably measure the luminescence light emitted in response to the excitation light, and thus accurately determine a corresponding decay time value.