Abstract: A 3D scanner system includes a scanner and a processor. The scanner includes a wand comprising a distal end configured for insertion into an oral cavity, wherein the wand comprises an opening in a sidewall of the distal end; and at least one of a window arranged in the opening of the wand or a sleeve mounted on an outside of the wand such that the sleeve covers the opening. The processor is configured to receive 2D images generated by the scanner, the 2D images comprising a) captured structured light reflected off of an intraoral object and b) captured additional light arising from reflections from at least one of the window or the sleeve; and perform 3D image reconstruction using the captured structured light in the 2D images while excluding the captured additional light in the 2D images based on processing of the 2D images using one or more algorithms.

Abstract: An apparatus for intraoral scanning comprises an elongate wand comprising a probe at a distal end of the elongate wand, one or more structured light projectors coupled to the elongate wand at a distal end of the elongate wand, the one or more structured light projectors configured to project a light pattern comprising a plurality of structured light features, one or more cameras coupled to the elongate wand at the distal end of the elongate wand, a window through which light exits and enters the probe, wherein the window reflects structured light features of the projected light pattern responsive to exposure of the window to the projected light pattern, and a processor.

Abstract: An apparatus for intraoral scanning comprises an elongate wand comprising a probe at a distal end of the elongate wand, one or more structured light projectors coupled to the elongate wand at a distal end of the elongate wand, the one or more structured light projectors configured to project a light pattern comprising a plurality of structured light features, one or more cameras coupled to the elongate wand at the distal end of the elongate wand, a window through which light exits and enters the probe, wherein the window reflects structured light features of the projected light pattern responsive to exposure of the window to the projected light pattern, and a processor.

Abstract: An apparatus for intraoral scanning includes an elongate handheld wand comprising a probe at a distal end of the handheld wand, one or more light projectors coupled to the handheld wand, and one or more cameras coupled to the handheld wand. Each camera comprises a camera sensor and objective optics comprising one or more lenses. Each camera is configured to focus at an object focal plane that is located between 1 mm and 30 mm from the lens that is farthest from the camera sensor. The apparatus further includes a fluorescent transparent film deposited on a surface selected from the group consisting of: a window of the probe through which light exits and enters the probe, and a transparent surface that is not integral to the probe.

Abstract: An apparatus for intraoral scanning includes an elongate handheld wand comprising a probe at a distal end of the handheld wand, one or more light projectors coupled to the handheld wand, and one or more cameras coupled to the handheld wand. Each camera comprises a camera sensor and objective optics comprising one or more lenses. Each camera is configured to focus at an object focal plane that is located between 1 mm and 30 mm from the lens that is farthest from the camera sensor. The apparatus further includes a fluorescent transparent film deposited on a surface selected from the group consisting of: a window of the probe through which light exits and enters the probe, and a transparent surface that is not integral to the probe.