SCANNER WITH FEEDBACK CONTROL

• Main Authors: FISKER, RUNE, PLASCENCIA, ALFREDO CHAVEZ, EDWARDS, CHRISTOPHER SIMON, HOLLENBECK, KARL-JOSEF, OEJELUND, HENRIK
• Format: Patent
• Language: English; French; German
• Published: 17.10.2012
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; PHYSICS; TESTING

The present invention relates to non-contact optical scanning of an object for generation of a three-dimensional surface model of the scanned object. In particular the invention relates to a scanner for obtaining the three-dimensional geometry of at least a part of the surface of an object, said scanner comprising: -at least one light source, preferably a laser light source with adjustable power, -projection means for directing light from the at least one light source to a moving spot on the surface of the object, -at least one image sensor adapted to record at least one image of at least a part of the surface, -detection means, other than the at least one image sensor, for monitoring at least a part of the light reflected from the surface, -regulation means for adjusting the intensity of the at least one light source based on the amount of light reflected from the surface, and-means for transforming the at least one image to a three-dimensional model of the surface.