Device for taking three-dimensional and temporal optical imprints in color
OwnerFrançois Duretinventor
Life of this patent
Estimating the term…
Abstract
Device for taking three-dimensional and temporal optical imprints in color, including a three-dimensional dental imaging device that does not employ structured light projection. The device includes a stereo camera having at least two CCD or CMOS color sensors in preset positions, an optical system of fixed and preset focal length, an LED lighting system, and an electronic system located behind or near the sensor, controlling the latter but also the LEDs illuminating the imprint capture region. The system includes a central processing unit and a card for controlling said LEDs. The sensors are distributed over all or part of a dental arch, being placed in a sort of optical impression tray allowing a complete image of the arch to be captured in a single exposure.
Claims10
A three-dimensional and temporal measuring device through optical color imprint usable in the dental field, wherein the device for taking three-dimensional dental pictures does not use structured light projection, the device comprising:
- a stereo camera comprised of at least two CCD or CMOS color sensors in a predetermined position defining, because of resetting speed, the reading speed, thus the speed of taking successive imprints, and permitting a static or dynamic reading;
- an optical system of fixed and preset focal length permitting to transmit to the sensors, without distortion, data displayed on the operating field;
- an LED lighting system for illuminating the area of taking an imprint;
- and
- an electronic system located behind or proximate each of the sensors, ensuring control thereof control of LEDs illuminating the area of taking an imprint,
- wherein said electronic system comprises:
- a central control unit capable of collecting, storing and organizing the data captured by said sensors;
- and
- a card for controlling said LEDs, depending on said central unit,
- wherein said sensors are distributed over a whole or part of a dental arch in order to make an imprint in one single exposure, avoiding clinical scanning of the arch, said sensors being arranged in an optical imprint tray permitting to capture the complete arch in one single exposure.
Dependencies are inferred from the claim text.