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:
Jul. 13, 2021
Filed:
Mar. 16, 2018
Applicant:
Dentsply Sirona Inc., York, PA (US);
Inventors:
Assignee:
DENTSPLY SIRONA Inc., York, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/73 (2006.01); A61B 1/00 (2006.01); A61B 1/04 (2006.01); A61B 1/24 (2006.01); G01J 3/02 (2006.01); G01J 3/50 (2006.01); G01J 3/52 (2006.01); H04N 17/00 (2006.01); H04N 17/02 (2006.01);
U.S. Cl.
CPC ...
A61B 1/00057 (2013.01); A61B 1/04 (2013.01); A61B 1/24 (2013.01); G01J 3/0297 (2013.01); G01J 3/508 (2013.01); G01J 3/52 (2013.01); H04N 9/735 (2013.01); H04N 17/002 (2013.01); H04N 17/02 (2013.01);
Abstract
The invention relates to a color reference for calibrating a dental color camera comprising a plurality of fields. A surface of the color reference comprises color fields for color calibration as well as white fields and/or gray fields for a white balance and/or a shading correction.