CN102764163B - Novel optical three-dimensional imaging device - Google Patents
Novel optical three-dimensional imaging device Download PDFInfo
- Publication number
- CN102764163B CN102764163B CN201210263882.1A CN201210263882A CN102764163B CN 102764163 B CN102764163 B CN 102764163B CN 201210263882 A CN201210263882 A CN 201210263882A CN 102764163 B CN102764163 B CN 102764163B
- Authority
- CN
- China
- Prior art keywords
- light
- electro
- optical system
- optical device
- light transmitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 77
- 238000003384 imaging method Methods 0.000 title claims abstract description 39
- 208000016339 iris pattern Diseases 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 19
- 238000013461 design Methods 0.000 abstract description 3
- 238000012634 optical imaging Methods 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000005516 engineering process Methods 0.000 description 6
- 230000010287 polarization Effects 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 3
- 210000000214 mouth Anatomy 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 2
- 230000001427 coherent effect Effects 0.000 description 2
- 238000011960 computer-aided design Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
- 210000004127 vitreous body Anatomy 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229940023487 dental product Drugs 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012014 optical coherence tomography Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 235000014692 zinc oxide Nutrition 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Landscapes
- Microscoopes, Condenser (AREA)
Abstract
A novel optical three-dimensional imaging device is characterized by comprising a master case, a scanning handle and a light transmitting device, wherein the master case is internally provided with a laser generator, a spatial light modulator, an optical imaging system, an image sensor and a control circuit; the scanning handle is internally provided with an array light converting module, a spectroscope, a telecentric mode co-focus optical system, a motor and an emergent/or incident light opening; and the light transmitting device is connected with the master case and the scanning handle and comprises an emergent light transmitting device, a reflected light transmitting device and a first protection cover covered on the emergent light transmitting device and the reflected light transmitting device; the emergent light transmitting device and the reflected light transmitting device respectively comprise a light transmitting component and a second protection cover covered on the light transmitting component; and one end of each light transmitting component is configured into a master case wiring end while the other end is configured into a scanning handle wiring end. With the adoption of the structural design, compared with the prior art, the imaging device has the following characteristics of better imaging effect, more convenience for operation and higher practicability.
Description
Technical field
The present invention relates to dental oral treatment field, being specifically related to a kind of novel non-contact optical 3-dimensional imaging device for obtaining tooth three-dimensional surface character.
Background technology
In dental imaging field and artificial tooth the Automation Design field, there is the method and apparatus of multiple different optical 3-dimensional direct imaging, be different from tradition use impression material get tooth modeling method be, the method of these optics direct imagings adopts digital computer Aided Design (CAD) to the tooth direct imaging in oral cavity usually, obtain corresponding tooth model on computers, afterwards digitized tooth model being transferred to artificial tooth and making laboratory, making (CAM) tooth replacement by adopting area of computer aided.
Wherein, a kind of three-dimensional optical formation method is had to be measure dental surface based on laser triangulation method and the distance extend between the optical detector in patient's cavity obtains dental surface three-dimensional feature.There is following shortcoming: this method hypothesis dental surface has desirable retroreflective feature, and as Lambertian reflectance, but the surface of actual teeth does not have Lambertian reflectance characteristic, and therefore imaging is often not accurate enough.
And other technology, as business-like Siemens GmbH or Sirona dental product CEREC-1 and CEREC-2, optical coherence tomography technology and optical phase is used to move the three-dimensional imaging of technology realization to tooth respectively, these two kinds of imaging systems utilize specially designed hand-held optical detector to obtain tooth three-dimensional surface character information, but weak point is: this method needs to smear one deck particular matter (as measured powder or a kind of Chinese white suspension) at dental surface, its thickness is difficult to being held in the scope of required standard, imaging is caused easily to produce error.
Therefore, how to solve the not foot point that above-mentioned prior art exists, just become problem to be solved by this invention.
Summary of the invention
The object of the invention is to provide a kind of optical 3-dimensional image forming device.
For achieving the above object, the technical solution used in the present invention is: a kind of optical 3-dimensional image forming device, comprising: a mainframe box, inside establishes laser generator, spatial light modulator, imaging optical system, imageing sensor and control circuit; One scan handle, inside establishes the confocal optical system of array light modular converter, spectroscope, telecentric iris pattern, motor and in/out to penetrate Guang Kou; One passes electro-optical device, connects described mainframe box and scanning hands handle; This biography electro-optical device comprises utilizing emitted light and passes electro-optical device, reflected light biography electro-optical device and be coated on the first protective sleeve that this utilizing emitted light passes electro-optical device and reflected light biography electro-optical device; Described utilizing emitted light passes electro-optical device and reflected light biography electro-optical device includes the second protective sleeve passing light parts and be coated on these biography light parts, and one end of described biography light parts is mainframe box terminals, and the other end is scanning handle terminals; Wherein, the exit end of described laser generator is connected with the incidence end of spatial light modulator, exit end and the described utilizing emitted light of this spatial light modulator pass the mainframe box terminals passing light parts in electro-optical device and are connected, this utilizing emitted light passes the incidence end that the scanning handle terminals passing light parts in electro-optical device connect described array light modular converter, the exit end of described array light modular converter connects the first end of the confocal optical system of described telecentric iris pattern via described spectroscope, the second end of the confocal optical system of this telecentric iris pattern connects described in/out and penetrates Guang Kou; Described reflected light passes the scanning handle terminals passing light parts in electro-optical device connect the confocal optical system of described telecentric iris pattern first end via described spectroscope, this reflected light passes the incidence end that the mainframe box terminals passing light parts in electro-optical device connect described imaging optical system, and the exit end of this imaging optical system is connected with the receiving terminal of described imageing sensor; The control circuit of described mainframe box is electrically connected described laser generator, motor and imageing sensor.
Related content in technique scheme is explained as follows:
1, in such scheme, described laser generator is in order to produce laser beam.
2, in such scheme, the effect of described spatial light modulator is that described laser beam is become spatial incoherent light, because the laser beam that described laser generator produces is originally as coherent light, (" interference of light " means: two row or several row light wave superpose mutually when meeting in space in easy generation interference of light, all the time strengthen in some region, then weaken all the time in other regions, form the phenomenon of stable strength distribution), and interference of light will reduce the imaging effect of shone thing.
3, in such scheme, the effect of described imaging optical system assembles passing through described reflected light the light passing light parts in electro-optical device, be specially single convex lens or a series of lens combination, and be good with the latter, stress release treatment can be had because select a series of lens combination to compare single convex lens and improve the effect of image quality.
4, in such scheme, the effect of described imageing sensor experiences optical image information and converts the exportable signal of telecommunication to, namely completes the conversion that " light " arrives " electricity "; This imageing sensor is CCD or CMOS.
5, in such scheme, described control circuit is in order to control the work of laser generator, motor, imageing sensor.
6, in such scheme, the effect of described array light modular converter source beam is converted to the consistent light beam of multiply direction of illumination; This array light modular converter specifically can be microlens array, or pinhole array adds lens combination.
7, in such scheme, described spectroscopical effect is: one, reflect and pass by described utilizing emitted light the light beam passing light parts in electro-optical device; Two, (namely being penetrated) light beam by the confocal optical system of described telecentric iris pattern is transmitted.
8, in such scheme, the confocal optical system of described telecentric iris pattern (telecentric lens) is specifically made up of a series of lens, precise pinhole, slit, can produce orthographic projection view to image, namely the amplification of image is independent mutually to the Distance geometry position of confocal optical system with image.
9, in such scheme, described motor is subjected to displacement in order to the confocal optical system controlling described telecentric iris pattern and changes its focal position, to help it to form three-dimensional image, and if without the driving of motor, then can only form two dimension even one dimensional image to irradiated area.
10, in such scheme, described in/out is penetrated Guang Kou and is specially an endoscope, and comprise vitreous body and be arranged on the minute surface of tool total internal reflection function of end, its effect sends the reflected light emitting light into tooth and gather tooth.
11, in such scheme, described biography light parts are specially optical fiber or free space, and are good with optical fiber.
12, in such scheme, also comprise one first polariser and the second polariser, this first, second polariser in order to light generation polarization, finally to improve the effect of imaging; Between the exit end that described laser generator is located at by described first polariser and the incidence end of spatial light modulator; Described second polariser is located in described reflected light biography electro-optical device and is passed between the scanning handle terminals of light parts and the incidence end of imaging optical system.
13, in such scheme, also comprise a relay optical system, this relay optical system is located at the confocal optical system of described telecentric iris pattern and in/out is penetrated between light mouth, its role is to transfer to in/out from confocal optical system penetrate Guang Kou by undistorted for image.
Operation principle of the present invention and advantage as follows: a kind of optical 3-dimensional image forming device of the present invention, by arranging laser generator in mainframe box, first polariser, spatial light modulator, second polariser imaging optical system, imageing sensor and control circuit, in scanning handle, array light modular converter is set, spectroscope, the confocal optical system of telecentric iris pattern, motor, relay optical system and in/out penetrate Guang Kou, and connect this mainframe box and scanning hands handle by a biography electro-optical device, this biography electro-optical device then has independently utilizing emitted light and passes electro-optical device and reflected light biography electro-optical device, to make the present invention's structure compared to existing technology, there is imaging effect better and operate more convenient practical improvement.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of preferred embodiment;
Accompanying drawing 2 is the structural principle block diagram of preferred embodiment;
Accompanying drawing 3 is the cross-sectional view passing electro-optical device in preferred embodiment;
Accompanying drawing 4 is the structural representation of the external equipment of preferred embodiment.
In above accompanying drawing: 1, pass electro-optical device; 2, utilizing emitted light passes electro-optical device; 3, reflected light passes electro-optical device; 4, the first protective sleeve; 5, the second protective sleeve; 6, optical fiber; 7, spectroscope; 8, tooth.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described:
Embodiment: as shown in Figure 1, a kind of optical 3-dimensional image forming device, comprising:
One mainframe box, inside establishes laser generator, the first polariser, spatial light modulator, the second polariser imaging optical system, imageing sensor and control circuit;
One scan handle, inside establishes the confocal optical system of array light modular converter, spectroscope 7, telecentric iris pattern, motor, relay optical system and in/out to penetrate Guang Kou;
Also comprise a biography electro-optical device 1, as shown in figures 2-3, this biography electro-optical device 1 connects described mainframe box and scanning handle, and comprises utilizing emitted light biography electro-optical device 2, reflected light biography electro-optical device 3 and be coated on the first protective sleeve 4 that this utilizing emitted light passes electro-optical device 2 and reflected light biography electro-optical device 3; Described utilizing emitted light passes electro-optical device 2 and reflected light biography electro-optical device 3 includes the second protective sleeve 5 passing light parts and be coated on these biography light parts, and described biography light parts are specially optical fiber 6, and one end of this optical fiber 6 is mainframe box terminals, and the other end is scanning handle terminals; Make this biography electro-optical device 1 have flexible speciality by said structure design, therefore user can control described scanning handle by flexible operating.
As shown in Figure 1, the exit end of described laser generator is connected with the incidence end of the first polariser, the exit end of the first polariser is connected with the incidence end of spatial light modulator, the mainframe box terminals that exit end and the described utilizing emitted light of this spatial light modulator pass optical fiber 6 in electro-optical device 2 are connected, see Fig. 3, in this utilizing emitted light biography electro-optical device 2, the scanning handle terminals of optical fiber 6 connect the incidence end of described array light modular converter, the exit end of described array light modular converter connects the first end of the confocal optical system of described telecentric iris pattern via described spectroscope 7, second end of the confocal optical system of this telecentric iris pattern connects the first end of described relay optical system, second end of relay optical system connects described in/out and penetrates Guang Kou,
In described reflected light biography electro-optical device 3, the scanning handle terminals of optical fiber 6 connect the first end of the confocal optical system of described telecentric iris pattern via described spectroscope 7, this reflected light passes the incidence end of described second polariser of mainframe box terminals connection of optical fiber 6 in electro-optical device 3, the exit end of the second polariser is connected with the incidence end of described imaging optical system, and the exit end of this imaging optical system is connected with the receiving terminal of described imageing sensor;
The control circuit of described mainframe box is electrically connected described laser generator, motor and imageing sensor.
Wherein, described laser generator is in order to produce laser beam; First, second polariser described in order to light generation polarization, finally to improve the effect of imaging; The effect of described spatial light modulator is that described laser beam is become spatial incoherent light, to avoid easily interference of light occurring due to laser beam for coherent light and reducing the problem of imaging effect; Described imaging optical system is specially a series of lens combination, to assemble passing through described reflected light the light passing light parts in electro-optical device, and energy stress release treatment, raising image quality; Described imageing sensor is specially a CCD(and sees Fig. 1), its effect experiences optical image information and converts the exportable signal of telecommunication to; Described control circuit gives off laser beam in order to control laser generator, and the confocal optical system that energy drive motors controls described telecentric iris pattern is subjected to displacement its focal position of change (with the image helping it to form three-dimensional, if and without the driving of motor, then can only form two dimension even one dimensional image to irradiated area), can also the work of control figure image-position sensor, and, this control circuit is also connected with an external equipment (PC), and Direct driver image capture module work wherein, see Fig. 4, and signal also directly can be sent to this image capture module by imageing sensor;
Described array light modular converter is specially microlens array, source beam to be converted to the consistent light beam of multiply direction of illumination; The light beam that the effect of described spectroscope 7 can reflect by passing light parts in described utilizing emitted light biography electro-optical device can transmit again (namely being penetrated) light beam by the confocal optical system of described telecentric iris pattern; The confocal optical system of described telecentric iris pattern (telecentric lens) is specifically made up of a series of lens, these a series of lens have different parameters, therefore there is different optical characteristics, can produce orthographic projection view to image, namely the amplification of image is independent mutually to the Distance geometry position of confocal optical system with image; The effect of described relay optical system is to transfer to in/out from described confocal optical system penetrate Guang Kou by undistorted for image; Described in/out is penetrated Guang Kou and is specially an endoscope, and comprise vitreous body and be arranged on the minute surface of tool total internal reflection function of end, its effect sends the reflected light emitting light into tooth 8 and gather tooth 8.
Now just operation principle of the present invention is described: when device of the present invention is started working, first, the control instruction that the laser generator in mainframe box receives control circuit is started working, and gives off laser beam, laser beam injects the first polariser, injects spatial light modulator, so that described laser beam is become spatial incoherent light via after the polarization of this first polariser, subsequently, light beam enters the utilizing emitted light be plugged in the biography electro-optical device 1 of this mainframe box and passes electro-optical device 2, and be conveyed into by the optical fiber 6 that this utilizing emitted light passes in electro-optical device 2 the array light modular converter be made up of microlens array in described scanning handle, light beam converts the consistent light beam of multiply direction of illumination to by this microlens array, and after refraction by described spectroscope 7, enter the confocal optical system of the telecentric iris pattern be made up of a series of lens, then described relay optical system is entered, again by the transmission of this relay optical system, light beam enters the described in/out be made up of endoscope and penetrates Guang Kou, and penetrate light mouth by beam emissions by this in/out, to irradiate the tooth 8 of patient, when irradiating the tooth 8 of patient, operator can carry out comprehensive and omnibearing scanning by the tooth 8 of mobile described scanning handle to patient, and due to the setting of described biography electro-optical device 1, this work can become comparatively easy and convenient, simultaneously, the motor in the control circuit gated sweep handle in mainframe box drives described confocal optical system to carry out displacement, its objective is that carrying out real-time three-dimensional to the tooth 8 of irradiated area irradiates scanning, finally, penetrate Guang Kou by the light beam of tooth 8 surface reflection by described in/out and get back to relay optical system, and after transferring to confocal optical system, directly enter through described spectroscope 7 reflected light passing electro-optical device 1 and pass electro-optical device 3, pass the optical fiber 6 of electro-optical device 3 through reflected light again and transfer to the second polariser in mainframe box, polarize via this second polariser equally, light beam after polarization is injected in the imaging optical system be made up of a series of lens combination, to assemble light beam, stress release treatment, enter CCD(and imageing sensor again), so far imaging device of the present invention is finished the work.It should be noted that: control circuit can according to the data of the image capture module Real-time Feedback of PC external in CCD, motor and Fig. 4 or signal, the work schedule of above-mentioned CCD, motor and image capture module is adjusted in real time, to obtain comparatively satisfied imaging when device works.
As shown in Figure 4, this external PC comprises image capture module, CPU, display, modem, wherein display can external user's control module, modem then can the communication module such as external network/bluetooth/WIFI, directly manufactures tooth mould to send image information to such as tooth mould process equipment.
A kind of optical 3-dimensional image forming device of the present invention, by arranging laser generator in mainframe box, first polariser, spatial light modulator, second polariser, imaging optical system, imageing sensor and control circuit, in scanning handle, array light modular converter is set, spectroscope, the confocal optical system of telecentric iris pattern, motor, relay optical system and in/out penetrate Guang Kou, and connect this mainframe box and scanning hands handle by a biography electro-optical device, this biography electro-optical device then has independently utilizing emitted light and passes electro-optical device and reflected light biography electro-optical device, to make the present invention's structure compared to existing technology, there is imaging effect better and operate more convenient practical improvement.
Above-described embodiment, only for technical conceive of the present invention and feature are described, its object is to person skilled in the art can be understood content of the present invention and implement according to this, can not limit the scope of the invention with this.All equivalences done according to spirit of the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (3)
1. an optical 3-dimensional image forming device, is characterized in that: comprising:
One mainframe box, inside establishes laser generator, spatial light modulator, imaging optical system, imageing sensor and control circuit;
One scan handle, inside establishes the confocal optical system of array light modular converter, spectroscope, telecentric iris pattern, motor and in/out to penetrate Guang Kou;
One passes electro-optical device, connects described mainframe box and scanning hands handle; This biography electro-optical device comprises utilizing emitted light and passes electro-optical device, reflected light biography electro-optical device and be coated on the first protective sleeve that this utilizing emitted light passes electro-optical device and reflected light biography electro-optical device; Described utilizing emitted light passes electro-optical device and reflected light biography electro-optical device includes the second protective sleeve passing light parts and be coated on these biography light parts, and one end of described biography light parts is mainframe box terminals, and the other end is scanning handle terminals;
Wherein, the exit end of described laser generator is connected with the incidence end of spatial light modulator, exit end and the described utilizing emitted light of this spatial light modulator pass the mainframe box terminals passing light parts in electro-optical device and are connected, this utilizing emitted light passes the incidence end that the scanning handle terminals passing light parts in electro-optical device connect described array light modular converter, the exit end of described array light modular converter connects the first end of the confocal optical system of described telecentric iris pattern via described spectroscope, the second end of the confocal optical system of this telecentric iris pattern connects described in/out and penetrates Guang Kou;
Described reflected light passes the scanning handle terminals passing light parts in electro-optical device connect the confocal optical system of described telecentric iris pattern first end via described spectroscope, this reflected light passes the incidence end that the mainframe box terminals passing light parts in electro-optical device connect described imaging optical system, and the exit end of this imaging optical system is connected with the receiving terminal of described imageing sensor;
The control circuit of described mainframe box is electrically connected described laser generator, motor and imageing sensor.
2. imaging device according to claim 1, is characterized in that: also comprise one first polariser and the second polariser; Between the exit end that described laser generator is located at by described first polariser and the incidence end of spatial light modulator; Described second polariser is located in described reflected light biography electro-optical device and is passed between the scanning handle terminals of light parts and the incidence end of imaging optical system.
3. imaging device according to claim 1, is characterized in that: also comprise a relay optical system, and this relay optical system is located at the confocal optical system of described telecentric iris pattern and in/out is penetrated between light mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210263882.1A CN102764163B (en) | 2012-07-27 | 2012-07-27 | Novel optical three-dimensional imaging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210263882.1A CN102764163B (en) | 2012-07-27 | 2012-07-27 | Novel optical three-dimensional imaging device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102764163A CN102764163A (en) | 2012-11-07 |
| CN102764163B true CN102764163B (en) | 2015-01-21 |
Family
ID=47091900
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210263882.1A Active CN102764163B (en) | 2012-07-27 | 2012-07-27 | Novel optical three-dimensional imaging device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102764163B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107106277B (en) * | 2014-10-29 | 2020-09-04 | 皇家飞利浦有限公司 | Teeth Whitening Systems and Kits |
| CN105125162B (en) * | 2015-09-17 | 2017-04-12 | 苏州佳世达光电有限公司 | Oral cavity scanner |
| CN106482663A (en) * | 2016-12-10 | 2017-03-08 | 巫献 | Based on 3-D scanning rifle in the hand-held cavity of common focusing principle |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1578646A (en) * | 2001-10-31 | 2005-02-09 | 画像诊断株式会社 | Medical simulation apparatus and method for controlling 3-dimensional image display in the medical simulation apparatus |
| CN201295298Y (en) * | 2008-11-25 | 2009-08-26 | 上海上远义齿有限公司 | Remote false-tooth data processing system |
| CN101918199A (en) * | 2007-10-26 | 2010-12-15 | 想象科技有限公司 | Process and freeform fabrication system for producing a three-dimensional object |
| CN202714941U (en) * | 2012-07-27 | 2013-02-06 | 艾博莱特（苏州）科技有限公司 | Novel optical three-dimensional image imaging device |
-
2012
- 2012-07-27 CN CN201210263882.1A patent/CN102764163B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1578646A (en) * | 2001-10-31 | 2005-02-09 | 画像诊断株式会社 | Medical simulation apparatus and method for controlling 3-dimensional image display in the medical simulation apparatus |
| CN101918199A (en) * | 2007-10-26 | 2010-12-15 | 想象科技有限公司 | Process and freeform fabrication system for producing a three-dimensional object |
| CN201295298Y (en) * | 2008-11-25 | 2009-08-26 | 上海上远义齿有限公司 | Remote false-tooth data processing system |
| CN202714941U (en) * | 2012-07-27 | 2013-02-06 | 艾博莱特（苏州）科技有限公司 | Novel optical three-dimensional image imaging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102764163A (en) | 2012-11-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11843222B2 (en) | Guidance for intraoral scanning | |
| US10764557B2 (en) | Method and apparatus for imaging a three-dimensional structure | |
| EP3028003B1 (en) | Methods and systems for generating color images | |
| US20200169649A1 (en) | Oral Endoscope | |
| CN109475394A (en) | Three-dimensional scanner and artifact processing device using the above three-dimensional scanner | |
| US7099732B2 (en) | Sanitary sleeve or tip for intra-oral three-dimensional camera | |
| KR101648970B1 (en) | Three-dimensional intraoral scanning apparatus using a tunable lens and the piezoelectric element of the pattern-based module | |
| CA2430674A1 (en) | Method and system for imaging and modeling a three dimensional structure | |
| CN102764163B (en) | Novel optical three-dimensional imaging device | |
| CN202714941U (en) | Novel optical three-dimensional image imaging device | |
| KR20230062444A (en) | Intraoral scanner | |
| CN202776619U (en) | Optical three-dimensional image imaging device | |
| CN202875522U (en) | Device for imaging optical three-dimensional color image | |
| WO2024046800A1 (en) | An intraoral scanning device with a hygienic implementation of leds |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |