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:
Feb. 17, 2009
Filed:
Apr. 07, 2006
Erik Büchler, Frankfurt am Main, DE;
Hartmut Brinkmann, Bohmte, DE;
Andre Garthaus, Osnabrueck, DE;
Philip Von Schroeter, Rodenbach, DE;
Erik Büchler, Frankfurt am Main, DE;
Hartmut Brinkmann, Bohmte, DE;
Andre Garthaus, Osnabrueck, DE;
Philip Von Schroeter, Rodenbach, DE;
Degudent GmbH, Hanau, DE;
Abstract
The invention relates to a method for three-dimensional shape measurement of a body or of a part thereof, in particular of a dental object such as a model, by scanning non-contact distance measurement using an optical sensor device comprising a beam source, where the shape of the body subjects reproducing areas to a beam at various incidence angles (impinging beam), and the reflected beam (measuring beam) is measured, with the body being adjusted relative to the optical sensor device. To permit measurement with high precision of the body and undercuts thereof, without tilting being necessary, it is proposed that for shape measurement of the respectively measured area the beam (measuring beam) reflected therefrom, which describes an angle α to a surface normal corresponding to the respective area, is taken into account, said angle being equal to or smaller than a predefined critical angle αrelative to the surface normal.