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Title:
METHOD AND DEVICE FOR DETECTING MEDICAL OBJECT, ESPECIALLY MODEL OF TOOTH SPECIMEN
Document Type and Number:
Japanese Patent JP2001153632
Kind Code:
A
Abstract:

To measure a medical object, especially a model of a tooth specimen by a simple method.

In this device for detecting a medical object, especially a model of a tooth specimen, a position detecting sensor having projection units 13-15 and light receiving units 18-21, movable in the projection direction is installed, a specified trigonometrical survey angle α is given between a projection optical path 10 of the projection units 13-15 and an observation light path 11 of the light receiving units 18-21, and the projection light path 10 is oriented in parallel to the moving direction of the position detecting sensor, and in addition, the trigonometrical survey angle α is made smaller than 10° to 5°, a light receiving array having the light receiving units 18-21 positioned in parallel and comprising plural pixels capable of individually evaluating is installed, the pixels cooperate with a signal processing device 21, and a means 19 for extending a beam in the perpendicular direction to the light receiving array is arranged within the observation light path 11.


Inventors:
BASLER FRANZ
HASENZAHL THOMAS
PFEIFFER JOACHIM
SCHWOTZER AXEL
Application Number:
JP2000318184A
Publication Date:
June 08, 2001
Filing Date:
October 18, 2000
Export Citation:
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Assignee:
SIRONA DENTAL SYSTEMS GMBH (DE)
International Classes:
G01B11/24; A61C13/00; A61C13/34; A61C13/36; G01C3/06; A61C9/00; (IPC1-7): G01B11/24; A61C13/00; G01C3/06
Domestic Patent References:
JPH08233519A1996-09-13
JPH10314187A1998-12-02
JPH05180629A1993-07-23
JPH07286845A1995-10-31
JPH11264722A1999-09-28
JPH08233519A1996-09-13
JPH10314187A1998-12-02
JPH05180629A1993-07-23
JPH07286845A1995-10-31
JPH11264722A1999-09-28
Attorney, Agent or Firm:
Toshio Yano (4 outside)