SCANNER COMPRISING A NOVEL LENS DRIVE MECHANISM

An intra-oral handheld 3D optical scanner includes an illumination module configured to generate an illumination signal to illuminate a dental object, and an image sensor configured to obtain data in response to the illumination of the dental object. The data is configured to be used to generate a 3...

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Bibliographische Detailangaben
Hauptverfasser:	HANSEN, Finn, ANDERSEN, Mads Grønlund
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE DENTISTRY HUMAN NECESSITIES HYGIENE MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MEDICAL OR VETERINARY SCIENCE PHYSICS TESTING
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Beschreibung
Zusammenfassung:	An intra-oral handheld 3D optical scanner includes an illumination module configured to generate an illumination signal to illuminate a dental object, and an image sensor configured to obtain data in response to the illumination of the dental object. The data is configured to be used to generate a 3D dental model of the dental object. The scanner also includes a lens housing comprising an optical lens that is configured to direct the illuminating signal towards the dental object, and a drive comprising a shaft that is configured to rotate around a rotation axis. The scanner also includes a guide extending continuously along at least a part of a length of the shaft and a spring, arranged intermediate between the lens housing and the guide, configured to exert a spring force towards the guide.