Patent ID: 8982200
Filing Date: 2015-03-17
Classification: A61B

Abstract:
1. An intraoral camera, comprising: a main body case; an intraoral insertion component that is provided on the distal end side of the main body case and is inserted into the oral cavity of a patient; an imaging window that is provided near the distal end of the intraoral insertion component and optically opens with respect to an imaging object within the oral cavity; an imaging device that is optically linked to the imaging window and captures an image of the imaging object, and that is disposed inside the main body case or inside the intraoral insertion component; first and second illumination elements that are provided on an outer peripheral wall face of the imaging window at the intraoral insertion component, and are disposed opposite each other with the imaging window in between, in a state of being inclined toward the center of the imaging window so that light shines on the imaging object disposed near the imaging window during imaging with the imaging device; and first and second light collecting faces that are part of the outer peripheral wall face, and that are disposed in front of the first and second illumination elements, respectively, and that are inclined toward the center of the imaging window so as to guide light emitted from the first and second illumination elements through the first and second light collecting faces, respectively, to the imaging object disposed near the imaging window during imaging with the imaging device, wherein the first and second light collecting faces deflect some of the light by a prism effect such that light that is perpendicular to the faces moves straight through, while other light is bent closer to the imaging window.