IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0702753
(2011-06-08)
|
등록번호 |
US-8520925
(2013-08-27)
|
우선권정보 |
FR-10 54483 (2010-06-08) |
국제출원번호 |
PCT/FR2011/051300
(2011-06-08)
|
§371/§102 date |
20121207
(20121207)
|
국제공개번호 |
WO2011/154656
(2011-12-15)
|
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
10 인용 특허 :
0 |
초록
▼
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 o
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.
대표청구항
▼
1. 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
1. 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; andan 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; anda 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. 2. Device according to claim 1, wherein said LEDs are distributed along the imprint tray and are controlled together or specifically depending on the analysis being performed. 3. Device according to claim 1, wherein the electronic system further comprises: a standard supply card capable of operating on USB or on battery; anda miniaturized memory card in the camera, permitting to store the pictures and to transfer said pictures to the computer. 4. Device according to claim 1, further comprising three sensors intended to be positioned uniformly, according to a known geometry, around the object to be studied, fixed focusing lenses positioned in front of each sensor according to a central optical axis, the position and the spatial orientation with respect to each other of which are perfectly known, said lenses in co-linear position with respect to the viewing axis of the sensor forming three image paths, one for each sensor. 5. Device according to claim 1, further comprising: two sensors positioned uniformly around the object being studied, in a known geometry, and focusing lenses placed in front of each sensor according to a central optical axis, the position and spatial orientation with respect to each other of which are perfectly known, said lenses, in a position co-linear with respect to the viewing axis of the sensor, forming two image paths, one for each sensor. 6. Device according to claim 4, wherein the LEDs are of a predetermined wavelength permitting to highlight natural markings or markings made before taking the imprint, made using markers of complementary color. 7. Device according to claim 4, wherein said LEDs are placed around each image-focusing lens placed in front of the sensor. 8. Device according to claim 4, wherein the LEDs are comprised of an association of white LEDs and LEDs of a predetermined wavelength, so that the measurements are made from natural colors, and not from artificial colors. 9. Device according to claim 1, further comprising a micro-mirror associated with the sensors and the LEDs. 10. Device according to claim 1, wherein the optical system comprises at least one endoscope.
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