Invention Grant
- Patent Title: Method and camera for the three-dimensional measurement of a dental object
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Application No.: US15575871Application Date: 2016-05-20
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Publication No.: US10206558B2Publication Date: 2019-02-19
- Inventor: Joachim Pfeiffer , Frank Thiel
- Applicant: SIRONA DENTAL SYSTEMS GMBH
- Applicant Address: US PA York
- Assignee: DENTSPLY SIRONA Inc.
- Current Assignee: DENTSPLY SIRONA Inc.
- Current Assignee Address: US PA York
- Agency: Dentsply Sirona Inc.
- Priority: DE102015209404 20150522
- International Application: PCT/EP2016/061370 WO 20160520
- International Announcement: WO2016/188881 WO 20161201
- Main IPC: A61B1/00
- IPC: A61B1/00 ; A61C9/00 ; G01B11/25 ; A61B1/247

Abstract:
The invention relates to a method and to a camera for the three-dimensional measurement of a dental object, comprising at least one light source, which emits an illumination beam, at least one projection means, which produces a projection pattern, focusing optics, which display the projection pattern in a plane of sharp focus at a defined focal distance relative to the dental camera. The projection pattern projected onto the object is reflected by the object as an observation beam and is acquired by means of a sensor. In the measurement of the object, the focusing optics are controlled in such a way that the focal distance of the plane of sharp focus relative to the camera is varied incrementally between a plurality of defined scan positions.
Public/Granted literature
- US20180125338A1 METHOD AND CAMERA FOR THE THREE-DIMENSIONAL MEASUREMENT OF A DENTAL OBJECT Public/Granted day:2018-05-10
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