FOCUS SCANNING APPARATUS

• Main Authors: KARL-JOSEF HOLLENBECK, MIKE VAN DER POEL, ARISH A QAZI, RUNE FISKER, RASMUS KJAER, HENRIK OEJELUND
• Format: Patent
• Language: English; Japanese
• Published: 30.04.2015
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; DIAGNOSIS; ELECTROGRAPHY; HOLOGRAPHY; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MEDICAL OR VETERINARY SCIENCE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; SURGERY; TESTING

PROBLEM TO BE SOLVED: To provide a scanner which may be integrated in a manageable housing, such as a handheld housing.SOLUTION: Disclosed is a handheld scanner for obtaining and/or measuring 3D geometry of at least a part of a surface of an object using confocal pattern projection techniques. Specific embodiments are given for intraoral scanning and scanning of an interior part of a human ear. The method and apparatus described in this invention is for providing a 3D surface registration of objects using light as a non-contact probing agent. The light is provided in the form of an illumination pattern to provide a light oscillation on an object. The variation/oscillation in the pattern may be spatial, e.g. a static checkerboard pattern, and/or may be time varying, for example by moving a pattern across the object being scanned. 【課題】手持ち式筐体等の扱いやすい筐体内に組み込まれ得るスキャナを提供する。【解決手段】共焦点パターン投影技術を使用して、対象物の表面の少なくとも一部の３Ｄ幾何学的形状を取得および／または測定するための手持ち式スキャナを開示する。口腔内走査およびヒトの耳の内部の走査の具体的な実施形態を与える。本発明に記載される方法および装置は、非接触型探査媒介物として光を使用して、対象物の３Ｄ表面登録を提供するためのものである。光は、光振動を提供する照射パターンの形態で、対象物上に提供される。パターンの変動／振動は、空間的、例えば、静的な市松模様パターンであってもよく、および／または、例えば、走査されている対象物にわたってパターンを移動させることによって、時変であってもよい。【選択図】図１