CN113648094B - Split type oral cavity digital impression instrument - Google Patents
Split type oral cavity digital impression instrument Download PDFInfo
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- CN113648094B CN113648094B CN202110919870.9A CN202110919870A CN113648094B CN 113648094 B CN113648094 B CN 113648094B CN 202110919870 A CN202110919870 A CN 202110919870A CN 113648094 B CN113648094 B CN 113648094B
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- 210000000214 mouth Anatomy 0.000 title claims abstract description 35
- 238000003384 imaging method Methods 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 238000012545 processing Methods 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 claims description 15
- 238000004891 communication Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 abstract description 16
- 230000017525 heat dissipation Effects 0.000 abstract description 11
- 238000005286 illumination Methods 0.000 description 19
- 230000003287 optical effect Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 12
- 230000008569 process Effects 0.000 description 7
- 238000001514 detection method Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010226 confocal imaging Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008030 elimination Effects 0.000 description 2
- 238000003379 elimination reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011505 plaster Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007943 implant Substances 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/004—Means or methods for taking digitized impressions
- A61C9/0046—Data acquisition means or methods
- A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C9/00—Impression cups, i.e. impression trays; Impression methods
- A61C9/004—Means or methods for taking digitized impressions
- A61C9/0046—Data acquisition means or methods
- A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
- A61C9/006—Optical means or methods, e.g. scanning the teeth by a laser or light beam projecting one or more stripes or patterns on the teeth
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Optics & Photonics (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Dentistry (AREA)
- Epidemiology (AREA)
- Physics & Mathematics (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Endoscopes (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
Abstract
The application discloses a split type oral cavity digital impression instrument, which comprises: the imaging sensor module is arranged in the light source channel, is connected with the main control circuit module in a data mode, and is arranged outside the shell and connected with the shell through a transmission cable. The split type oral cavity digital impression instrument effectively reduces the heat dissipation capacity inside the hand piece of the oral cavity digital impression instrument and the weight and the volume of the hand piece through split type design.
Description
Technical Field
The application relates to an oral cavity imaging device, in particular to a split type oral cavity digital impression instrument.
Background
In recent years, attention has been paid to oral health and tooth aesthetics. In the field of orthodontic treatment, implantation and restoration, the dental digital impression instrument is convenient and quick compared with the traditional impression in the use process, and the acceptance of patients is high. In the traditional oral clinic process, a dentist is required to take a die from teeth of a patient, then the die is sent to a processing center, the processing center copies the die into a plaster model, the plaster model is converted into a three-dimensional model by a desk scanner, then the processing center designs orthodontic braces, implants or false teeth and the like for the patient on the basis of the three-dimensional model, and the finished product is sent to a clinical dentist. Traditional clinical methods for taking the model of the teeth of the patient are long in time consumption and low in efficiency, the experience of the patient is poor, the conditions can be improved through digital scanning of the oral cavity, meanwhile, the workload of doctors is reduced, discomfort of the patient is reduced, and the experience of the patient is improved.
At present, digital impression technology which is easy to operate, high in precision and convenient to store is increasingly paid attention to in the oral medical field, and oral digital scanning is divided into two main types according to scanning positions, namely external scanning and internal scanning, wherein a new scanning mode appears at home and abroad in recent years during the internal scanning. Intraoral scanning stretches the device into the mouth of a patient to directly measure the tooth body, and a three-dimensional digital model is obtained in real time. The usage scenario of the digital intraoral scanner, namely the oral digital impression instrument, determines the characteristics of the digital intraoral scanner relative to the traditional extraoral scanner: (1) The oral cavity is narrow, and a small oral cavity digital impression instrument is needed, so that the user can conveniently go deep into the oral cavity to collect information, and meanwhile, the user experience is improved by small equipment; (2) The scanning efficiency is high, and the comfort level of a patient can be influenced by long-time oral opening and closing, so that an intraoral three-dimensional digital model needs to be acquired rapidly; (3) The scanning precision is required to be high, and the obtained digital model can be directly applied to the fields of orthodontics, planting and repairing.
In the prior art, the technical scheme of the digital intraoral scanner mainly comprises the following three types:
1. ) Three-dimensional scanning imaging based on structured light imaging
The application patent CN 113100980A proposes an oral scanner comprising: a light source for providing an illumination beam; when the illumination beam is incident to the digital micro-mirror element, the digital micro-mirror element reflects the illumination beam to form a projection image on the surface of the object to be scanned; the image capturing device is used for capturing an image of the object to be scanned to form a scanning image; wherein, the digital dimension mirror is seen at a distance including: a micromirror array; the control unit is coupled to the light source and the micro-mirror array, and is used for controlling the on-off proportion of the micro-mirror array according to the color of the current illumination light beam so as to adjust the projection brightness of the projection image.
2. ) Three-dimensional scanning imaging based on laser confocal
The principle of the confocal imaging technology is that point illumination and point confocal detection are realized by utilizing an illumination pinhole arranged behind a light source and a detection pinhole arranged in front of a detector, light emitted by the light source through the illumination pinhole is focused on a certain point of a focal plane of a sample, a light beam emitted by the point is imaged in the detection pinhole, any emitted light beyond the point is blocked by the detection pinhole, and the illumination pinhole and the detection pinhole are conjugate to the illuminated point or the detected point, so that the detected point is the confocal point. The application patent CN 113040713A proposes an oral cavity scanner and an oral cavity scanning method, wherein the scanner realizes three-dimensional scanning imaging of teeth and other tissues in an oral cavity based on a confocal imaging principle, and has the advantages of simple light path, small volume, convenience and practicability. The device is characterized by comprising a light source module, a beam splitting module, a focusing module, an imaging module and a processing module.
3. ) Binocular vision-based three-dimensional scanning imaging
The application patent CN 112043434A proposes a digital oral cavity scanner and an imaging system, which adopts a binocular imaging principle, and comprises an imaging unit, a projection unit and a peripheral illumination system, wherein the projection unit projects a designed specific pattern on the surface of an oral cavity tissue to be detected, and the imaging unit acquires images of tissues such as teeth in the oral cavity and records related information; and acquiring partial coincident images at different positions by utilizing the two cameras, performing image matching on the two images, calculating the position information of the tissue to be measured according to a triangular algorithm, splicing frame by frame, and finally forming the three-dimensional shape of the whole tooth body. In the application patent CN 112074228A, a three-dimensional oral scanner is proposed, which comprises: a housing which can enter and exit from the oral cavity and is formed with an opening which opens to allow the shape of the interior of the oral cavity to enter the interior in the form of light through one end; a pair of lenses disposed inside the housing and arranged at intervals in a width direction of the housing; a pair of imaging plates including imaging sensors and configured to be closely attached to one side wall in a width direction and the other side wall in the width direction of the housing; a pair of light path changing parts configured to change the light path of the light transmitted through the pair of lenses to face the imaging plate.
Referring to fig. 1, the prior art is realized by integrating a main control circuit board module, a light source module and an oral digital impression instrument hand piece, wherein the main control circuit board module, the light source module and the oral digital impression instrument hand piece are integratedThe control circuit board module is mainly used for processing and transmitting the acquired sensor data. Because the data volume that main control circuit board module needs to handle is great, consequently can inevitably bring great treater consumption, and then brought higher heat dissipation capacity. In addition, the light source module required in the oral digital impression instrument can also bring larger heat dissipation capacity when working. Because the medical instrument product has the special electrical safety requirement, the surface of the medical instrument, which is contacted with a patient, has the temperature requirement, and the medical instrument cannot be overtemperature.In order to solve the problem of main control circuit board module and light in the hand-held piece of oral cavity digital impression instrument The heat dissipation requirement brought by the source module is mainly met by two technical solutions:
1. ) By adding a heat sink or heat sink design to the interior of the handpiece of the oral digital impression instrument
The main principle of the design scheme is that heat emitted from the main control circuit board module and the light source module is conducted to other parts, such as the outer shell of other parts of the oral cavity digital impression instrument, so that the heat is conducted more dispersedly, and the problem of overhigh local temperature in the hand piece is further avoided.
2. ) Radiating fan added in hand-held piece
The design scheme is mainly that a cooling fan is added at the tail part of the hand piece, such as the product of the Hefei Meiya photoelectric technology Co., ltd disclosed in CN 306120008S, and the cooling fan is added at the tail part of the hand piece as shown in figure 2, and the inside of the device is cooled by air cooling.
In summary, the existing oral digital impression apparatus mainly has the following disadvantages:
1. ) The existing integrated design often leads to the characteristic of larger volume of the hand-held piece of the oral digital impression instrument. On the one hand, the addition of the radiating block or the radiating fin in the hand piece inevitably increases the volume, and the volume of the radiating block or the radiating fin is in positive correlation with the internal heat of the equipment to be radiated; on the other hand, in some integrated designs, in order to ensure heat dissipation of the circuit board, a fan is added at the tail part, so that the size of the handheld piece is inevitably increased.
2. ) In the existing integrated design, the weight of the hand piece of the oral digital impression instrument is often increased, and the comfort of long-time handheld operation of an operator is affected. Whether it is a heat sink, or a built-in fan module (including a fan module drive circuit), etc., can add weight to the handpiece.
3. ) In the existing integrated design, as the fan is added, the material cost of the product is increased on one hand; more seriously, the operation of the fan brings operation noise, and the user experience is affected.
Disclosure of Invention
The application aims to provide a split type oral digital impression instrument, which overcomes the defects in the prior art.
In order to achieve the above purpose, the present application provides the following technical solutions: a split digital dental impression apparatus comprising: the imaging sensor module is arranged in the light source channel, is connected with the main control circuit module in a data mode, and is arranged outside the shell and connected with the shell through a transmission cable.
Preferably, the light source transmits light to the light source channel through an optical fiber, and the light source is disposed outside the housing.
Further, the light source transmits light to the light source channel through the low-pass filter and the optical fiber, and the light source is arranged outside the shell.
Preferably, the imaging sensor module and the main control circuit module perform data transmission through differential signal lines such as LVDS or MIPI.
Preferably, the system further comprises an image processing terminal, and the main control circuit module acquires image data through the imaging sensor module and then transmits the image data to the image processing terminal.
Preferably, the device further comprises a projection module, wherein the projection module is arranged in the light source channel and is connected with the main control circuit board through a transmission cable.
Preferably, the device further comprises a base, and the main control circuit module and the light source are arranged in the base.
Further, the base also comprises a communication module, data obtained from the main control circuit module are obtained, and the data are transmitted to the image processing unit in a wired or wireless mode.
Preferably, the light source device further comprises a switching box, and the main control circuit module and the light source are arranged in the switching box.
Further, the adapter box also comprises a communication module, data obtained from the main control circuit module are obtained and transmitted to the all-in-one computer or the image processing unit in a wired or wireless mode.
Compared with the prior art, the split type oral digital impression instrument has at least the following advantages:
1. the main control circuit module is separated from the hand piece through a split design, so that the heat dissipation capacity in the hand piece of the oral cavity digital impression instrument and the weight and the volume of the hand piece are effectively reduced;
2. the image sensor and the main control circuit board module adopt differential signal lines such as LVDS or MIPI for transmission, compared with parallel sensor interfaces, the line sequence is reduced, and the signal transmission distance is increased;
3. the light source module is separated from the hand piece through a split type design, and the light emitted by the light source module is led into the hand piece through the optical fiber, so that the heat dissipation capacity in the hand piece of the oral digital impression instrument and the weight and the volume of the hand piece are further reduced;
4. a low-pass filter is arranged between the optical fiber and the light source to filter infrared light, so that the heat dissipation in the hand piece of the oral cavity digital impression instrument is effectively reduced.
5. Possible fan designs in conventional integrated digital oral impression apparatus are avoided. Noise in the running process of the equipment is reduced, namely noise brought by the running of the fan is reduced; the fans and the matched driving circuits thereof are reduced, and the material cost is reduced; at the same time, the elimination of the fan module is also beneficial to the reduction of the volume and weight of the oral digital impression instrument.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a prior art digital dental impression apparatus;
FIG. 2 is a schematic diagram of a prior art digital dental impression apparatus incorporating a fan design;
FIG. 3 is a schematic view of a split type digital oral impression apparatus according to a first embodiment of the present application;
FIG. 4 is a schematic view of a split type digital oral impression apparatus according to a second embodiment of the present application;
FIG. 5 is a schematic view of a split type digital oral impression apparatus according to a third embodiment of the present application;
FIG. 6 is a schematic view of a split type digital oral impression apparatus according to a fourth embodiment of the present application;
FIG. 7 is a schematic illustration showing a connection between a split oral digital impression instrument and an image processing unit in accordance with a first embodiment of the present application;
FIG. 8 is a schematic illustration of a computer connection between a split oral digital impression instrument and an integrated computer in accordance with a second embodiment of the present application;
wherein: 1. a hand piece; 2. a base; 3. a housing; 4. an optical lens group; 5. an imaging sensor module; 6. a projection module; 7. a light source module; 8. a transmission cable; 9. a main control circuit board module; 10. touch screen/all-in-one computer; 11. a junction box; 12. an optical fiber; 13. a low pass filter; 14. and an image processing unit.
Detailed Description
The following detailed description of the technical solutions according to the embodiments of the present application will be given with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
Referring to fig. 3, a split oral digital impression apparatus includes: the portable electronic device comprises a handheld piece 1, a base 2, a shell 3, an optical lens group 4, an imaging sensor module 5, a projection module 6, a light source module 7, a transmission line 8 and a main control circuit board module 9; the hand piece 1 comprises a shell 3, an optical lens group 4, an imaging sensor module 5, a projection module 6 and a light source module 7, wherein the optical lens group 4, the imaging sensor module 5, the projection module 6 and the light source module 7 are arranged in the shell 3; the hand piece 1 is connected with the base 2 through a transmission cable 8, and the base 2 at least comprises a main control circuit board module 9
Optionally, the base 2 further includes a communication module, which acquires data obtained from the main control circuit module 9, and transmits the data to the image processing unit 14 in a wired or wireless manner, as shown in fig. 7.
The imaging sensor module 5 can adopt serial interfaces such as LVDS or MIPI and the like and is connected with the main control circuit board module 9 through the transmission cable 8;
the control signal line of the projection module 6 is also connected with the main control circuit board module 9 through the transmission cable 8; the optical lens group 4 ensures that incident or emergent light passes through a specific light path;
the light source module 7 is used for providing illumination light beams, and a control signal line of the light source module is also connected with the main control circuit board module 9 through the transmission cable 8, so that the illumination time sequence and the on-off of the light source are controlled.
After the machine is started, the main control circuit board 9 sequentially controls the sensor module 5, the projection module 6 and the light source module 7 to work, so that image data in the mouth is obtained, the data is preliminarily processed and then transmitted to the image processing unit in a wired or wireless mode, and the data is used for generating final three-dimensional image data in the mouth.
Example 2
Referring to fig. 4, a split oral digital impression apparatus includes: the portable electronic device comprises a handheld piece 1, a transfer box 11, a shell 3, an optical lens group 4, an imaging sensor module 5, a projection module 6, a light source module 7, a transmission line 8 and a main control circuit board module 9; the hand piece 1 comprises a shell 3, an optical lens group 4, an imaging sensor module 5, a projection module 6 and a light source module 7, wherein the optical lens group 4, the imaging sensor module 5, the projection module 6 and the light source module 7 are arranged in the shell 3; the hand piece 1 is connected with the switching box 11 through the transmission cable 8, and the switching box 11 at least comprises a main control circuit board module 9.
Optionally, the adapter box 11 further includes a communication module, and the data obtained from the main control circuit module 9 is transmitted to the all-in-one computer 10 in a wired or wireless manner, as shown in fig. 8.
The imaging sensor module 5 can adopt serial interfaces such as LVDS or MIPI and the like and is connected with the main control circuit board module 9 through the transmission cable 8;
the control signal line of the projection module 6 is also connected with the main control circuit board module 9 through the transmission cable 8;
the optical lens group 4 ensures that incident or emergent light passes through a specific light path;
the light source module 7 is used for providing illumination light beams, and a control signal line of the light source module is also connected with the main control circuit board module 9 through the transmission cable 8, so that the illumination time sequence and the on-off of the light source are controlled.
After the machine is started, the main control circuit board 9 sequentially controls the sensor module 5, the projection module 6 and the light source module 7 to work, so that image data in the mouth is obtained, the data is preliminarily processed and then transmitted to the image processing unit in a wired or wireless mode, and the data is used for generating final three-dimensional image data in the mouth.
Example 3
Referring to fig. 5, a split oral digital impression apparatus includes: the portable electronic device comprises a handheld piece 1, a base 2, a shell 3, an optical lens group 4, an imaging sensor module 5, a projection module 6, a light source module 7, a transmission line 8 and a main control circuit board module 9; the hand piece 1 comprises a shell 3, an optical lens group 4, an imaging sensor module 5 and a projection module 6, wherein the optical lens group 4, the imaging sensor module 5 and the projection module 6 are arranged in the shell 3; the hand piece 1 is connected with the base 2 through a transmission cable 8, and the base 2 at least comprises a main control circuit board module 9 and a light source module 7.
Optionally, the base 2 further includes a communication module, which acquires data obtained from the main control circuit module 9, and transmits the data to the image processing unit 14 in a wired or wireless manner, as shown in fig. 7.
The imaging sensor module 5 can adopt serial interfaces such as LVDS or MIPI and the like and is connected with the main control circuit board module 9 through the transmission cable 8;
the control signal line of the projection module 6 is also connected with the main control circuit board module 9 through the transmission cable 8;
the optical lens group 4 ensures that incident or emergent light passes through a specific light path;
the light source module 7 is used for providing illumination light beams, and a control signal line of the light source module is also connected with the main control circuit board module 9 through the transmission cable 8, so that the illumination time sequence and the on-off of the light source are controlled. The light source module 7 comprises a light source, an optical fiber 12 and a low-pass filter 13, wherein the light emitted by the light source filters out the infrared light rays in the light source through the low-pass filter 13, and then is conducted into the hand piece 1 through the optical fiber 12 to provide illumination.
After the machine is started, the main control circuit board 9 sequentially controls the sensor module 5, the projection module 6 and the light source module 7 to work, so that image data in the mouth is obtained, the data is preliminarily processed and then transmitted to the image processing unit in a wired or wireless mode, and the data is used for generating final three-dimensional image data in the mouth.
Example 4
Referring to fig. 6, a split oral digital impression apparatus includes: the portable electronic device comprises a handheld piece 1, a transfer box 11, a shell 3, an optical lens group 4, an imaging sensor module 5, a projection module 6, a light source module 7, a transmission line 8 and a main control circuit board module 9; the hand piece 1 comprises a shell 3, an optical lens group 4, an imaging sensor module 5 and a projection module 6, wherein the optical lens group 4, the imaging sensor module 5 and the projection module 6 are arranged in the shell 3; the hand piece 1 is connected with the base 2 through a transmission cable 8, and the adapter box 11 at least comprises a main control circuit board module 9 and a light source module 7.
Optionally, the adapter box 11 further includes a communication module, and the data obtained from the main control circuit module 9 is transmitted to the all-in-one computer 10 in a wired or wireless manner, as shown in fig. 8.
The imaging sensor module 5 can adopt serial interfaces such as LVDS or MIPI and the like and is connected with the main control circuit board module 9 through the transmission cable 8;
the control signal line of the projection module 6 is also connected with the main control circuit board module 9 through the transmission cable 8;
the optical lens group 4 ensures that incident or emergent light passes through a specific light path;
the light source module 7 is used for providing illumination light beams, and a control signal line of the light source module is also connected with the main control circuit board module 9 through the transmission cable 8, so that the illumination time sequence and the on-off of the light source are controlled. The light source module 7 comprises a light source, an optical fiber 12 and a low-pass filter 13, wherein the light emitted by the light source filters out the infrared light rays in the light source through the low-pass filter 13, and then is conducted into the hand piece 1 through the optical fiber 12 to provide illumination.
After the machine is started, the main control circuit board 9 sequentially controls the sensor module 5, the projection module 6 and the light source module 7 to work, so that image data in the mouth is obtained, the data is preliminarily processed and then transmitted to the image processing unit in a wired or wireless mode, and the data is used for generating final three-dimensional image data in the mouth.
Compared with the prior art, the split type oral digital impression instrument has at least the following advantages: 1. the main control circuit module is separated from the hand piece through a split design, so that the heat dissipation capacity in the hand piece of the oral cavity digital impression instrument and the weight and the volume of the hand piece are effectively reduced;
2. the image sensor and the main control circuit board module adopt differential signal lines such as LVDS or MIPI for transmission, compared with parallel sensor interfaces, the line sequence is reduced, and the signal transmission distance is increased;
3. the light source module is separated from the hand piece through a split type design, and the light emitted by the light source module is led into the hand piece through the optical fiber, so that the heat dissipation capacity in the hand piece of the oral digital impression instrument and the weight and the volume of the hand piece are further reduced;
4. a low-pass filter is arranged between the optical fiber and the light source to filter out the infrared optical fiber, so that the heat dissipation in the hand piece of the oral cavity digital impression instrument is effectively reduced.
5. Possible fan designs in conventional integrated digital oral impression apparatus are avoided. Noise in the running process of the equipment is reduced, namely noise brought by the running of the fan is reduced; the fans and the matched driving circuits thereof are reduced, and the material cost is reduced; at the same time, the elimination of the fan module is also beneficial to the reduction of the volume and weight of the oral digital impression instrument.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is merely exemplary of the application and it will be appreciated by those skilled in the art that variations and modifications may be made without departing from the principles of the application, and it is intended that the application also be limited to the specific embodiments shown.
Claims (4)
1. A split type oral cavity digital impression instrument, which is characterized in that: comprising the following steps: the imaging sensor module is arranged in the light source channel, is in data connection with the main control circuit module, and is arranged outside the shell and connected with the shell through a transmission cable;
the light source module comprises a light source and an optical fiber, wherein the light source transmits light to a light source channel through the optical fiber, and the light source is arranged outside the shell;
the light source module further comprises a low-pass filter, and the low-pass filter is arranged between the light source and the optical fiber;
the imaging sensor module and the main control circuit module perform data transmission through differential signal lines such as LVDS or MIPI;
the main control circuit module acquires image data through the imaging sensor module and then transmits the image data to the image processing terminal;
the light source channel is arranged in the main control circuit board, and the light source channel is connected with the main control circuit board through a transmission cable;
the main control circuit module and the light source are arranged in the base.
2. The split oral digital impression apparatus according to claim 1, wherein: the base also comprises a communication module which acquires data obtained from the main control circuit module and transmits the data to the image processing unit in a wired or wireless mode.
3. The split oral digital impression apparatus according to claim 1, wherein: the light source is arranged in the main control circuit module, and the light source is arranged in the light source.
4. A split digital oral impression apparatus according to claim 3, wherein: the adapter box also comprises a communication module which acquires data obtained from the main control circuit module and transmits the data to the all-in-one computer or the image processing unit in a wired or wireless mode.
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