发明申请
- 专利标题: Double-Sided Measurement of Dental Objects using an Optical Scanner
- 专利标题(中): 使用光学扫描仪双面测量牙科物体
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申请号: US11829471申请日: 2007-07-27
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公开(公告)号: US20070293769A1公开(公告)日: 2007-12-20
- 发明人: Michael Doherty , Yitzhak Daniel , Eli Zeitlin , Karol Sanilevici , Gabriel Sirat , Gregory Agronik
- 申请人: Michael Doherty , Yitzhak Daniel , Eli Zeitlin , Karol Sanilevici , Gabriel Sirat , Gregory Agronik
- 申请人地址: IL JERUSALEM 91450
- 专利权人: OPTIMET, OPTICAL METROLOGY LTD.
- 当前专利权人: OPTIMET, OPTICAL METROLOGY LTD.
- 当前专利权人地址: IL JERUSALEM 91450
- 主分类号: A61N5/06
- IPC分类号: A61N5/06
摘要:
Methods for digitizing complex surfaces of dental objects such as impressions of dental surfaces and shapes. While an impression mold is being scanned by translation along a known trajectory, typically in a plane, the line of sight of a distance probe is directed toward successive positions on the surface of the impression mold, such as by a periodic series of reflecting surfaces characterized by normal vectors at distinct non-orthogonal angles with respect to their axis of symmetry. One or more reference objects are scanned using the same translation and mirror positioning systems. Gathered coordinate data are processed to apply angular corrections and combined to form a single distortion-corrected image of the impression mold. An apparatus and methods are provided for measuring both sides of a dental object separately, and then registering the two sides relative to each other in a digital representation of the object.