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:
Mar. 19, 2013
Filed:
Feb. 07, 2005
Jean-marc Inglese, Bussy Saint Georges, FR;
Anne C. Croguenec, Rives, FR;
Julien D. Barneoud, Bussy Saint Martin, FR;
Jean-Marc Inglese, Bussy Saint Georges, FR;
Anne C. Croguenec, Rives, FR;
Julien D. Barneoud, Bussy Saint Martin, FR;
Carestream Health, Inc., Rochester, NY (US);
Abstract
The invention relates to a device for measuring dental shade comprising: —illumination means (), for successively illuminating at least one part of a tooth (D) with light of various spectral ranges, —at least one sensor () sensitive to light coming from said tooth part, in response to the illumination, to generate for each different color of illumination, at least one measurement signal, —means () for converting the measurement signals corresponding to said tooth part, into the coordinates of a measurement point (), in a shade space in which 'reference' points () are also defined, corresponding to the preset shades of a dental shade guide, and—search means (), for the tooth part, for a shade corresponding to the reference point closest to the measurement point, in the shade space.