3D-image oral scanner with stereo optical system configured using single camera

A 3D-image oral scanner with a stereo optical system configured using a single camera, the 3D-image oral scanner comprising a stereo image optical unit 3-dimensionally photographing measurement objects in an oral cavity through one camera,

• wherein the stereo image optical unit includes:
• a first light path changer changing paths of a first light image and a second light image traveling inside at different angles after reflecting from a measurement object in an oral cavity to an image light path;
• and
• one camera sensor taking the first light image and the second light image together that have traveled inside at different angles and of which the paths have been changed by the first light path changer,
• wherein the first light path changer includes:
• a first reflective mirror and a second reflective mirror spaced apart from each other to reflect beams of light traveling inside at different angles after reflecting from a measurement object in an oral cavity to a double-sided prism positioned on an image light path;
• and
• a double-sided prism reflecting a first light image and a second light image reflecting from the first reflective mirror and the second reflective mirror, respectively, while changing paths of the first and second light images to the image light path on a first surface and a second surface thereof, and
• the one camera sensor takes the first light image and the second light image together which have traveled inside at different angles and of which the paths have been changed on the first surface and the second surface of the double-sided prism.