Patent ID: 8160334

Claim:
A method for optically measuring a three-dimensional geometry of an object using a triangulation method of a dental intraoral camera including at least one light source, at least one diaphragm unit for producing structured patterns, and at least one recording unit, the method comprising: producing a first pattern by a first diaphragm unit and projecting the first pattern onto the object to be measured as a first projected beam; and producing a further pattern by at least one further diaphragm unit and projecting the further pattern onto the object to be measured as a further projected beam, wherein said first pattern and said further pattern are back-projected from said object as monitoring beams; imaging said monitoring beams, by the at least one recording unit; and acquiring a three-dimensional (3D) data set of said object; simultaneously imaging said projected first pattern and said further pattern; and storing at least one triangulation image using said at least one recording unit.