Title:
歯科用オブジェクトの３Ｄ測定のための方法およびカメラ
Document Type and Number:
Japanese Patent JP6907125
Kind Code:
B2
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.
Inventors:
Pfeiffer, Joachim
Teal, frank
Teal, frank
Application Number:
JP2017556193A
Publication Date:
July 21, 2021
Filing Date:
May 20, 2016
Export Citation:
Assignee:
Sirona Dental Systems Gesellschaft Mitt Beschlenktel Haftung
International Classes:
G01B11/25; A61C19/04; G01C3/06
Domestic Patent References:
| JP2012530267A | ||||
| JP2000155960A |
Foreign References:
| EP2377464A1 | ||||
| DE102007039981A1 |
Attorney, Agent or Firm:
Ryoichi Takaoka
Nao Oda
Akiyo Iwahori
Kaoru Takahashi
Nao Oda
Akiyo Iwahori
Kaoru Takahashi