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:
Oct. 29, 2019
Filed:
Mar. 14, 2016
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventor:
Johannes Fink, Bergheim, DE;
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 3/50 (2006.01); H04N 5/225 (2006.01); F21V 8/00 (2006.01); G02B 27/14 (2006.01); G03B 9/08 (2006.01); G01J 3/52 (2006.01); G01J 3/02 (2006.01); A61B 1/04 (2006.01); A61B 1/06 (2006.01); A61B 1/24 (2006.01); A61B 5/103 (2006.01); A61C 13/08 (2006.01); A61B 5/00 (2006.01);
U.S. Cl.
CPC ...
G01J 3/508 (2013.01); A61B 1/04 (2013.01); A61B 1/06 (2013.01); A61B 1/24 (2013.01); A61B 5/0088 (2013.01); A61B 5/1034 (2013.01); A61C 13/082 (2013.01); G01J 3/0272 (2013.01); G01J 3/52 (2013.01); G01J 3/524 (2013.01); G02B 6/0096 (2013.01); G02B 27/144 (2013.01); G03B 9/08 (2013.01); H04N 5/2256 (2013.01); A61B 2560/0456 (2013.01); H04N 2005/2255 (2013.01);
Abstract
A dental imaging and illumination device. The device has an optical interface for emitting light from the device and for receiving light into the device. The device has a light source, a camera, a beam splitter and a color reference. The color reference and the light source are optically coupled via an optical path so that the light source can illuminate the color reference. This optical path bypasses the beam splitter. The device facilitates color measuring particularly in the field of dentistry.