US Patent 11994588 Three-dimensional surface scanning

A three-dimensional scan of an object may be performed by a three-dimensional scanning device to obtain a three-dimensional representation of the object. A coherent beam of light is emitted towards and reflected by the object with the reflected light being measured to form a set of light measurements at each of a plurality of data acquisition points. A sensor array in the device tracks and measures movement of the device and a linear displacement with respect to a fixed anchor point that is external to the device. The tracked movement of the device and the reflected light measurements are synchronized according to when they were measured with this synchronized data being used to generate a three-dimensional representation of the object.