公开(公告)号：US07492470B2

公开(公告)日：2009-02-17

申请号：US11399346

申请日：2006-04-07

申请人： Erik Büchler ,  Hartmut Brinkmann ,  Andre Garthaus ,  Philip Von Schroeter

发明人： Erik Büchler ,  Hartmut Brinkmann ,  Andre Garthaus ,  Philip Von Schroeter

IPC分类号： G01B11/24 ,  A61C3/00

CPC分类号： A61C19/04 ,  A61C9/0053 ,  A61C9/0093 ,  G01B11/24

摘要： 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 αGR relative to the surface normal.

摘要翻译： 本发明涉及一种用于通过使用包括光束源的光学传感器装置扫描非接触距离测量的身体或其一部分，特别是诸如模型的牙科物体的三维形状测量的方法，其中 身体的形状以各种入射角（入射光束）再现区域到光束，并且测量相对于光学传感器装置调节身体的反射光束（测量光束）。 为了允许以高精度的身体和底切进行测量，不需要倾斜，提出对于从其反射的光束（测量光束）对分别测量的面积进行形状测量，其描述与对应于 考虑到相应的区域，所述角度等于或小于相对于表面法线的预定临界角度αGR。