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1. 发明公开

EP1825217A1 VERMESSUNGSEINRICHTUNG UND VERFAHREN NACH DEM GRUNDPRINZIP DER KONFOKALEN MIKROSKOPIE 有权
标题翻译：测量装置和方法的基本原理激光共聚焦显微镜
公开(公告)号：EP1825217A1
公开(公告)日：2007-08-29
申请号：EP05813473.5
申请日：2005-12-01
申请人： Sirona Dental Systems GmbH
发明人： SCHWOTZER, Axel
IPC分类号： G01B11/24 , G02B21/00
CPC分类号： G02B21/0064 , G02B21/0028
摘要： The invention relates to a measuring device for the confocal measurement of an object. Said device comprises a light source (1), imaging optics (4) and an image detector (10). The device is equipped with elements (11) for modifying the optical path length in the beam path between the diaphragm assembly (3) and the object (6), the optical distance of the image plane being modifiable in a predetermined manner and elements for influencing at least one characteristic (intensity, frequency, spectrum) of the light (5) that is emitted from the light source (1) to the object (6) or the light (7) that is reflected by the object (6) and that strikes the sensor (10), during an exposure period (tB1) of an exposure. According to the invention, a predetermined relationship, (in the form of a profile), between the characteristic of the light (5, 7) and the optical distance of the image plane from the imaging optics (4) is produced during the exposure period (tB1). The device is also equipped with elements, which supply a measured value for the exposure period (tB1) that is dependent on the characteristics of the light of the viewing beam path (7). A height co-ordinate (zs) of the object (6) can be reconstructed from the measured value of the exposure period (tB1) and a reference value.

2. 发明授权

EP2375967B1 CAMERA FOR RECORDING SURFACE STRUCTURES, SUCH AS FOR DENTAL PURPOSES 有权
标题翻译：照相机记录表面结构，如牙科的
公开(公告)号：EP2375967B1
公开(公告)日：2016-08-31
申请号：EP09805923.1
申请日：2009-12-18
申请人： Sirona Dental Systems GmbH
发明人： SCHWOTZER, Axel , SCHMIDT, Volker
IPC分类号： A61B5/00 , A61B1/24
CPC分类号： A61C9/006 , A61B1/00163 , A61B1/00193 , A61B1/04 , A61B1/0646 , A61B1/0669 , A61B1/24 , A61B5/0084 , A61B5/4547 , A61C1/088

3. 发明公开

EP2382442A1 VERFAHREN ZUR 3D-VERMESSUNG DER OBERFLÄCHE EINES OBJEKTS, INSBESONDERE FÜR ZAHNMEDIZINISCHE ZWECKE 有权
标题翻译： 3D方法测量的物体的表面，尤其是对于牙科的
公开(公告)号：EP2382442A1
公开(公告)日：2011-11-02
申请号：EP09802145.4
申请日：2009-12-23
申请人： Sirona Dental Systems GmbH & Co.KG
发明人： SCHWOTZER, Axel , KLEIN, Konrad
IPC分类号： G01B11/25 , G01B21/04
CPC分类号： G01B11/2513 , A61B1/24 , A61B5/0088 , A61B5/1077 , A61C9/0053 , A61C13/0004 , G01B21/042
摘要： For the purposes of 3D measurement of the surface of an object using optical Doppler triangulation utilizing the phase shift method, in particular for dental purposes, at least two 3D measurements of the same object (1) are carried out at different triangulation angles (θ1, θ2), the first angle of which is known and the second of which is at least approximately known. For each image point (B1) of the phase image (φ1(x, y) ), a wave number (Wz (x
i , y
i ) ) is determined using the second phase image (φ2 (x, y) ), the whole number portion of said wave number corresponding to the order (n) of the unambiguous range (E1) in which the respective image point (B1) is located. Said wave number (wz (x, y)) is optimized by minimizing a non whole-number portion of the wave number ( wz (x
i , y
i ) - [ wz (x
i , y
i ) ] ) at least for a random sample of m image points (B1).

4. 发明授权

EP2382442B1 VERFAHREN ZUR 3D-VERMESSUNG DER OBERFLÄCHE EINES OBJEKTS, INSBESONDERE FÜR ZAHNMEDIZINISCHE ZWECKE 有权
标题翻译： 3D方法测量的物体的表面，尤其是对于牙科的
公开(公告)号：EP2382442B1
公开(公告)日：2017-06-07
申请号：EP09802145.4
申请日：2009-12-23
申请人： Sirona Dental Systems GmbH
发明人： SCHWOTZER, Axel , KLEIN, Konrad
IPC分类号： G01B11/25 , G01B21/04
CPC分类号： G01B11/2513 , A61B1/24 , A61B5/0088 , A61B5/1077 , A61C9/0053 , A61C13/0004 , G01B21/042

5. 发明授权

EP1825217B1 VERMESSUNGSEINRICHTUNG UND VERFAHREN NACH DEM GRUNDPRINZIP DER KONFOKALEN MIKROSKOPIE 有权
标题翻译：测量装置和方法的基本原理激光共聚焦显微镜
公开(公告)号：EP1825217B1
公开(公告)日：2015-11-11
申请号：EP05813473.5
申请日：2005-12-01
申请人： Sirona Dental Systems GmbH
发明人： SCHWOTZER, Axel
IPC分类号： G01B11/24 , G02B21/00
CPC分类号： G02B21/0064 , G02B21/0028

6. 发明公开

EP2375967A1 CAMERA FOR RECORDING SURFACE STRUCTURES, SUCH AS FOR DENTAL PURPOSES 有权
标题翻译：照相机记录表面结构，如牙科的
公开(公告)号：EP2375967A1
公开(公告)日：2011-10-19
申请号：EP09805923.1
申请日：2009-12-18
申请人： Sirona Dental Systems GmbH
发明人： SCHWOTZER, Axel , SCHMIDT, Volker
IPC分类号： A61B5/00 , A61B1/24
CPC分类号： A61C9/006 , A61B1/00163 , A61B1/00193 , A61B1/04 , A61B1/0646 , A61B1/0669 , A61B1/24 , A61B5/0084 , A61B5/4547 , A61C1/088
摘要： A 3-D camera for obtaining an image of at least one surface of at least one object 1(14)1. The camera comprises a light source (3), arranged to illuminate the object, wherein a light beam emitted from the light source defines a projection optical path. The camera also includes at least one first aperture (9a, 21a) having a first predetermined size, interposed in the projection optical path such that the light beam passes through it. An image sensor receives light back-scattered by the object, the back-scattered light defining an observation optical path. At least one second aperture (9b, 21b) having a second predetermined size, is interposed in the observation optical path such that the back- scattered light passes through it. In one example embodiment of the invention, the first predetermined size is greater than the second predetermined size, and at least one optic is arranged in both the projection and observation optical paths.

7. 发明授权

EP3618752B1 VERFAHREN ZUR KONSTRUKTION EINER BOHRSCHABLONE 有权转让
公开(公告)号：EP3618752B1
公开(公告)日：2020-10-21
申请号：EP19731706.8
申请日：2019-06-17
申请人： Sirona Dental Systems GmbH , Dentsply Sirona Inc.
发明人： SCHNEIDER, Sascha , THIEL, Frank , SCHWOTZER, Axel
IPC分类号： A61C1/08

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