Apparatus for digitizing a three-dimensional surface

Details Apparatus for digitizing a three-dimensional surface Apparatus for digitizing a three-dimensional surface

1989-12-04

1991-03-05

Wilson, John J.

Dentistry

Apparatus

Having gauge or guide

128776, 364560, 33503, 33513, A61C 1904

Patent

active

049973690

ABSTRACT:
Apparatus for digitizing the contour of a three-dimensional surface of an object includes a handle, a probe carried by the handle and movable along three independent axes to contact sample points on the three-dimensional surface, and a positional sensor for sensing the position of the handle along the three axes and for outputting positional values. The probe includes an arm deflectable during the movement of the probe, which deflections are sensed by a sensor. A digital processor processes the positional values only when one of the deflection sensors senses a deflection in its respective arm above a predetermined threshold value, and modifies the positional values by the deflection values.

REFERENCES:
patent: 4167066 (1979-09-01), Cooper et al.
patent: 4192312 (1980-01-01), Mushabac
patent: 4333238 (1982-06-01), McMurtry
patent: 4581826 (1986-04-01), Ernst

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