To provide a three-dimensional shape measuring method and device capable of accurately measuring a three-dimensional shape independently of the shape of the measuring object, in the noncontact measurement of the three- dimensional shape of the measuring object such as a tooth pattern.
The device is a three-dimensional shape measuring device that is used for noncontactly measuring the three-dimensional shape of a measuring object M such as a tooth pattern required for designing and manufacturing a dental prosthesis, and also that is basically provided with a laser light source, lenes, and PSDs. The device is provided with a laser light source 1 for emitting laser beams L to the measuring point P of a measuring object M, and also at least two combinations of lenses 2a to 2d for converging the reflected light rays Ra to Rd from the measuring point P and the PSDs that receive the converged reflected light for outputting light-receiving position information at the light receiving surface.
IWASAKI HIDEKI
SAKAMAKI YOSHIO
ISHIWAKA TAKUO
