KR101934738B1 - 3 dimension oral scanner using omnidirectional monitoring optical system and artificial tooth machine device thereof - Google Patents

Abstract

A 3D mouth scanner using an omnidirectional optical system according to an embodiment of the present invention includes a first part in which a part or the whole is inserted into an oral cavity, a second part formed at one side of the first part, and a second part formed at a part of the first part, And a photographing unit installed in the first or second unit for detecting light received from the omnidirectional optical system to generate an image of the oral cavity.

Description

TECHNICAL FIELD [0001] The present invention relates to a 3D mouth scanner using an omnidirectional optical system, and an artificial tooth processing apparatus including the 3D mouth scanner.

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a 3D mouth scanner and an artificial tooth processing apparatus including the 3D mouth scanner. More particularly, the 3D mouth scanner uses an omnidirectional optical system.

Impression taking is an important clinical procedure that is based on identifying the condition of teeth and tissues in the oral cavity, establishing a patient's diagnosis and treatment plan, or building accurate prostheses.

The process of impression making can be repeatedly made by various factors such as impression modification due to wrong choice of impression material or use method, rejection reaction of the patient irrespective of skill of the surgeon. In addition, even in the stage of making the plaster model after the impression taking, the limit of the detailed reproduction of the material and the abrasion may cause errors in the manufacture of the dental prosthesis.

Therefore, accurate impression preparation within a short period of time can provide a great satisfaction to the treatment and prognosis of the dentist and the patient, and various impression methods for this purpose are continuously being sought.

Recently, as digital technology has been applied to the dental clinical and engineering process, impression making has been changed into a new digital working method of designing and manufacturing a prosthesis based on computer after directly converting the inside of the mouth into digital data without using an impression material This is a digital image processing method based on images taken in the oral cavity rather than the X-ray method, which has a problem of radiation exposure, but the nuclear magnetic resonance (NMR) method, which is expensive equipment. And can be manufactured at a relatively low cost.

These digital methods are also positive for the reproducibility of the materials used for impression making, the errors that occur in modeling, the problems of model and record keeping, the sensitivity of manual expressions and the standardization of production Giving effect.

In addition, the oral structure is very complicated, and the area to be examined through the optical image is not a cross-section, but the difficulty of observing the gingival portion supporting the teeth including the front and back surfaces of the teeth and the end surfaces of the teeth And research and development on oral-scan technology is actively under way.

Patent Document 1 (Korean Patent Laid-Open Publication No. 10-2013-0080077) discloses a conventional technology related to a digital scanning technique based on a digital method. In the technique disclosed in Korean Patent Laid-Open No. 10-2013-0080077, an image moving along a rail installed in the oral cavity, Patent Document 2 (US Pat. No. 6,821,161) discloses a device capable of acquiring optical images inside and outside the oral cavity using a sensor module (Image Sensor Module) And a camera for photographing a user's tooth while moving a track.

However, in the case of the 3D oral scanner of Patent Document 1, since the image sensor long in the moving direction must move on the rail, the vertical length of the rail perpendicular to the moving direction of the image sensor module has the same length in all regions. Since the width of the oral cavity becomes narrower from the incisor to the premolar and the molar direction, there is a great difficulty in installing the rail on the oral cavity of the patient, and the feeling of rejection felt by the patient is very large. Also, as in Patent Documents 1 and 2, Or the time required for moving the entire area of the track is increased, and the patient's rejection is further increased. Further, there is a problem in that an incorrect image is acquired according to the motion of the muscles in the oral cavity according to the rejection of the patient.

In the case of the conventional patent documents 1 and 2, the time required for scanning the oral cavity according to the moving time of the image sensor is long As a conventional technique for solving this problem, Japanese Patent Application Laid-Open No. 10-2015-0021310 discloses an oral cavity photographing tray corresponding to the arrangement shape of a tooth so that all the teeth can be photographed by one shot However, in the oral cavity photographing tray of Patent Document 3, there is a problem that a plurality of camera modules must be provided on a tray for photographing all the teeth of the upper and lower teeth, and depending on the oral structure of the patient, Even if it is not installed in the tray, the clearance between the tray and the tooth is different depending on the region, There is a limit in that a proper captured image can not be obtained in the contact area.

In addition, despite the rapid development of a digital data-based oral scanner, the time required for imaging in the oral cavity is on the order of a few minutes longer than ten minutes or longer, requiring a long period of concentration of the surgeon, It is required to know precisely the measurement position and posture at the time of measurement, and the patient is required to hold the scanner for a long time in the oral cavity, causing inconvenience of the patient. However, due to the structural limitations of the conventional oral scanner, which is photographed by complicated oral structures and partial regions within the oral cavity, it is inevitable to take a plurality of photographs of the teeth and gums in the region, In order to obtain the entire tooth shape, It takes a lot of time in the data processing process of measuring the eye, correcting and correcting it, and synthesizing it into one data for obtaining the entire dental image, and it is difficult to confirm the result of the oral image quickly, Rather, it takes more time than traditional impression making and plaster modeling.

Patent Document 1 (Korean Patent Laid-Open Publication No. 10-2013-0080077) Patent Document 2 (U.S. Patent No. 6,821,161) Patent Document 3 (Korean Unexamined Patent Application Publication No. 10-2015-0021310)

SUMMARY OF THE INVENTION It is an object of the present invention to provide a 3D mouth scanner using an omnidirectional optical system capable of minimizing oral scan time.

It is another object of the present invention to provide a 3D mouth scanner using an omnidirectional optical system capable of improving the resolution and resolution of a 3D image to improve the quality of an image.

It is another object of the present invention to provide a 3D mouth scanner using an omnidirectional optical system that minimizes resolution degradation, resolution degradation, and error between actual intraoral information in the synthesis of a plurality of images by minimizing an imaged image.

It is also an object of the present invention to provide a 3D mouth scanner using an omnidirectional optical system capable of observing the entire region of the mandible or the maxilla at a time.

It is also an object of the present invention to provide an omnidirectional optical system capable of solving the inconvenience that a patient feels as he or she repeatedly and continuously proceeds with an awkward or inconvenient oral movement when the 3D mouth scanner is inserted into a patient's mouth, The present invention provides a 3D mouth scanner using the 3D mouth scanner.

It is also an object of the present invention to provide a 3D mouth scanner using an omnidirectional optical system capable of photographing the inside and outside of the entire dentition without missing teeth.

A 3D oral scanner using an omnidirectional optical system according to an exemplary embodiment of the present invention includes a first portion in which a part or all of the 3D scanner is inserted into an oral cavity, a second portion formed at one side of the first portion, and an omnidirectional optical system provided at a portion of the first portion. And a photographing unit installed in the first unit or the second unit for detecting light received from the omnidirectional optical system to generate an image of the oral cavity. The present invention also provides a 3D mouth scanner using the omnidirectional optical system.

The 3D ophthalmologic scanner of the 3D oral scanner using the omnidirectional optical system according to another embodiment of the present invention may further include a omnidirectional lens exposed to the outside of the first unit, and may provide a 3D oral scanner using the omnidirectional optical system .

Further, the 3D mouth scanner using the omnidirectional optical system according to another embodiment of the present invention further includes a position control unit connecting the first unit and the second unit to each other and controlling the flow of the first unit, A 3D mouth scanner may also be provided.

According to still another aspect of the present invention, there is provided a 3D mouth scanner using the omnidirectional optical system including an image sensor, wherein the photographing unit of the 3D oral scanner using the omnidirectional optical system.

The image sensor of the 3D oral scanner using the omnidirectional optical system according to another embodiment of the present invention may also provide a 3D oral scanner using an omnidirectional optical system as a positional displacement detecting element.

According to still another aspect of the present invention, there is provided a 3D mouth scanner using an omnidirectional optical system, wherein the 3D mouth scanner further comprises a light source unit for supplying light to the oral cavity, and the light source unit irradiates laser light. A scanner may be provided.

According to another aspect of the present invention, there is provided a 3D oral scanner using an omnidirectional optical system, which further comprises a plurality of light sources installed in the first unit for irradiating light to the oral cavity, using the omnidirectional optical system You may.

In addition, the plurality of light sources of the 3D oral scanner using the omnidirectional optical system according to another embodiment of the present invention may provide a 3D oral scanner using an omnidirectional optical system that is sequentially or selectively driven.

According to still another aspect of the present invention, there is provided a 3D oral scanner using an omnidirectional optical system, wherein the 3D ophthalmologic scanner further comprises a projector installed in the first or second unit for irradiating patterned light to the oral cavity A 3D mouth scanner may also be provided.

According to still another aspect of the present invention, there is provided a 3D oral scanner using an omnidirectional optical system, further comprising a light output omnidirectional optical system for irradiating the pattern structure light to the oral cavity using the omnidirectional optical system You may.

In the 3D mouth scanner using the omnidirectional optical system according to another embodiment of the present invention, the optical outgoing omnidirectional optical system includes a light exit omnidirectional lens, and the optical outgoing omnidirectional lens has the same refractive index as the omnidirectional lens doing

A 3D mouth scanner using an omnidirectional optical system may be provided.

Further, the 3D oral scanner using the omnidirectional optical system according to another embodiment of the present invention may be provided with a 3D angle scanner using the omnidirectional optical system, wherein the omnidirectional optical system and the optical outgoing omnidirectional optical system form a predetermined angle with each other .

The 3D mouth scanner using the omnidirectional optical system according to another embodiment of the present invention may be provided with a 3D lens scanner using the omnidirectional optical system, wherein the omnidirectional lens is a liquid lens.

According to still another aspect of the present invention, there is provided a 3D oral scanner using an omnidirectional optical system, further comprising: a mirror part installed on the second part to cover a part of the outer surface of the first part, And the light reflected from the oral cavity is re-reflected and provided as the omnidirectional lens.

In addition, the omnidirectional lens of the 3D mouth scanner using the omnidirectional optical system according to another embodiment of the present invention may further include: a first omnidirectional area for receiving light reflected in the oral cavity; And a second omnidirectional area for receiving the reflected light from the mirror unit. The 3D omnidirectional scanner may be provided with the omnidirectional optical system.

Further, the photographing unit of the 3D oral scanner using the omnidirectional optical system according to another embodiment of the present invention simultaneously or sequentially or selectively detects light received in the first omnidirectional region and the second omnidirectional region, A 3D mouth scanner using an optical system may be provided.

Further, the photographing unit of the 3D mouth scanner using the omnidirectional optical system according to another embodiment of the present invention photographs a continuous image corresponding to the flow of the omnidirectional optical system, and calculates the depth of the image based on the minutiae from the continuous image The 3D mouth scanner using the omnidirectional optical system may be provided.

Further, the photographing unit of the 3D mouth scanner using the omnidirectional optical system according to another embodiment of the present invention may acquire an image according to the irradiation position of the light source and calculate the depth of the image from the obtained image to generate an intraoral model A 3D mouth scanner using the omnidirectional optical system may be provided.

According to still another aspect of the present invention, there is provided an artificial tooth processing apparatus comprising: a 3D mouth scanner using an omnidirectional optical system; digital data received from a 3D mouth scanner using the omnidirectional optical system into three-dimensional data to generate production data; And a milling device for generating an artificial tooth on the basis of the milling strip received from the data conversion device.

The 3D mouth scanner using the omnidirectional optical system according to the embodiment of the present invention can improve the accuracy and efficiency of the diagnosis because the omnidirectional lens can confirm the entire dentition at a glance.

In addition, by using the omnidirectional optical system capable of shooting the whole area of 360 degrees, it is possible to minimize the inconvenience of the patient and the surgeon by reducing the shooting time and the number of shooting times by taking the entire dental image at one time.

In addition, it is possible to prevent degradation of the image quality due to the composition of a plurality of images, and to obtain a 3D image having high resolution and high resolution.

In addition, it is possible to perform precise scanning by acquiring a specific region and a surrounding region including the specific shape in a single image, instead of photographing a region such as a palatable palatal region with an unusual tooth shape and reflection, .

In addition, by receiving the retroreflected light of the mirror through the omnidirectional optical system, all the inner and outer regions of the entire dentition can be photographed without missing teeth.

In addition, the zone scanning method scans the teeth one by one and matches with the whole dentition structure, resulting in errors in registration errors and dental structure. This problem can be solved by high precision 3D model generation of the entire dentition without deformation by the single scan by the 3D mouth scanner.

1 and 2 are perspective views of a 3D oral scanner using an omnidirectional optical system according to an embodiment of the present invention.
3 to 5 are perspective views of a 3D oral scanner using an omnidirectional optical system according to another embodiment.
7 is a perspective view of a 3D mouth scanner using an omnidirectional optical system according to still another embodiment.
FIG. 8 is a perspective view of a 3D mouth scanner further comprising a light output omniazimuth optical system, which is a 3D mouth scanner using an omnidirectional optical system according to still another embodiment.
FIG. 9 is a perspective view of a 3D mouth scanner using a omnidirectional optical system according to still another embodiment of the present invention, further comprising a protection unit.
10 is a schematic view of a case where a 3D oral scanner using an omnidirectional optical system including a bit unit is inserted into the oral cavity.
11 is a top view of a 3D mouth scanner further comprising a mirror portion;
12 is a schematic diagram showing that light reflected by the mirror portion is incident on the omnidirectional optical system when the 3D mouth scanner is inserted into the oral cavity.
13 is a sectional view of the omnidirectional lens.
14 and 15 are views showing a mandible image photographed by the omnidirectional optical system.
16 is a sectional view of the omnidirectional lens according to another embodiment;
17 is a sectional view of the omnidirectional lens and the lens array.
18 is a perspective view of a spherical scanner including an information input unit, according to another embodiment of the present invention, which is a 3D oral scanner using an omnidirectional optical system.
19 is a perspective view of a spherical scanner including a lens protector, according to another embodiment of the present invention, which is a 3D mouth scanner using an omnidirectional optical system.
20 is a view showing a heating member provided in a lens protecting portion and a lens protecting portion;
21 is a block diagram of an artificial tooth machining apparatus having a 3D mouth scanner according to an embodiment of the present invention;
Fig. 22 is a view schematically showing the structure of a 3D mouth scanner of a pattern mask system; Fig.
FIG. 23 is a view schematically showing a configuration diagram of a 3D mouth scanner of a projector type.
FIG. 24 is a schematic view showing a configuration of a 3D mouth scanner of a photometric stereo system; FIG.
FIG. 25 is a schematic diagram of a 3D mouth scanner based on a multiple image-based three-dimensional image reconstruction method; FIG.
26 and 27 are sectional views of a liquid lens;
28 is a view of a mandible arch.
29 is a view showing the angle of the mandibular arch, and Fig. 30 is a view showing the dental arch of each type.
31 is a view showing distances between maxillary and mandibular teeth;
32 is a longitudinal sectional view of the dental arch;
Fig. 33 is a view showing the shape of a Monson sphere and a cog dental arch and a crown inclination angle. Fig.
Figures 34 and 35 are views showing the shape and size of the clinical crown of the mandibular molar.
Fig. 36 is a view showing a tooth standard value.

Hereinafter, a 3D mouth scanner using an omnidirectional optical system according to an embodiment of the present invention and an artificial tooth processing apparatus including the 3D mouth scanner will be described in detail with reference to the drawings. The following embodiments are provided by way of example so that those skilled in the art can fully understand the spirit of the present invention. Therefore, the present invention is not limited to the embodiments described below, but may be embodied in other forms. In the drawings, the size and thickness of an apparatus may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and the manner of achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. However, it should be understood that the present invention is not limited to the embodiments disclosed herein but may be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification. The dimensions and relative sizes of the layers and regions in the figures may be exaggerated for clarity of illustration.

The terminology used herein is for the purpose of describing embodiments only and is not intended to be limiting of the invention. In the present specification, the singular form includes plural forms unless otherwise specified in the specification. &Quot; comprise "and / or" comprising ", as used in the specification, means that the presence of stated elements, Or additions.

1 and 2 are perspective views of a 3D mouth scanner using an omnidirectional optical system according to an embodiment of the present invention, and FIGS. 3 to 6 are perspective views of a 3D mouth scanner using an omnidirectional optical system according to another embodiment.

Referring to FIGS. 1 and 2, a 3D oral scanner 10 using an omnidirectional optical system according to an embodiment of the present invention may include a first unit 30 and a second unit 50.

The omnidirectional optical system 100 may include a lens for forming an image of an object or transmitting light energy using reflection or refraction of light. The lens may be a lens having an angle of view of 360 degrees, such as a omnidirectional lens, A lens having a 360 degree angle of view such as a mirror-type lens, a fish-eye lens, and the like. The omnidirectional optical system 100 may further include at least one of a reflector, an additional lens, and a prism in addition to a lens having a 360 degree view angle.

The first portion 30 and the second portion 50 may be integrally formed, separated from each other, and coupled to each other.

The first portion 30 may be formed on one side of the second portion 50.

At least one region of the first portion 30 may be inserted into the patient's mouth, that is, part or all of the first portion 30 may be inserted into the patient's mouth.

The first portion 30 may have a size smaller than the average oral size, so that the first portion 30 may be inserted into the oral cavity.

The second portion 50 may be connected to the first portion 30 to fix and support the first portion 30. A user who is a surgeon may capture the second portion 50, The second portion 50 may be provided with a knob structure.

The second portion 50 may have a shape of a gun type, a handle type or a pen type with a handle, and when the second portion 50 is a handle type, More specifically, it may be a power grip type or a grooming brush type. However, the present invention is not limited thereto. Any size and shape that the user can grip the second portion 50 can be used Do.

The first portion 30 may have various shapes such as a quadrangle, a circle, an ellipse, and the like. The second portion 50 may have various shapes, for example, But it is not limited thereto.

The 3D oral scanner 10 may include an omnidirectional optical system 100 and a photographing unit 300 and a light source unit 500 for detecting light received from the omnidirectional optical system 100 to generate a mouth image of a patient.

The omnidirectional optical system 100 may be installed on one side of the first unit 30 and the photographing unit 300 may be installed on at least one of the first unit 30 and the second unit 50. [ The light source unit 500 may be installed on at least one of the first and second units 30 and 50 or may be provided separately from the first and second units 30 and 50 and may include the first and second units 30 and 50, Or the like.

The light source unit 500 can generate light to be irradiated to a subject such as oral teeth, gums, tongue, palate, and posterior triangle, and the light reflected from the subject passes through the omnidirectional optical system 100, 300, the photographing unit 300 can photograph the subject. The light source unit 500 may be any one of a laser light source, a light emitting diode light source, a fluorescent lamp light source, an incandescent lamp light source, and a halogen lamp light source, but is not limited thereto and any light source capable of providing light to the oral cavity can be used .

Referring to FIG. 3, the 3D oral scanner 10 using the omnidirectional optical system according to the embodiment of the present invention may include a position controller 51.

The position control unit 51 may be installed at one end of the second unit 50 and the position control unit 51 may physically connect the first unit 30 and the second unit 50 to each other.

However, the position control unit 51 shown in the figure is merely an example, and the first unit 30 and the second unit 50 are coupled to each other, and the first unit 30 is connected to the second unit 50 ) Can be used as long as it is possible to perform the position change exercise independently of the position change.

The first unit 30 can change its position in various directions around the position control unit 51 by the position control unit 51 in a state where the second unit 50 is fixed.

In addition, the omnidirectional optical system 100 is installed in the first unit 30, and a part of the omnidirectional optical system 100 can be exposed to the outside, and a subject corresponding to the exposed surface can be photographed through the exposed surface.

For example, when the first portion 30 of the 3D mouth scanner 10 is inserted into the oral cavity of the patient in the direction of the arrow, the omnidirectional optical system 100 exposed at the back surface of the first portion 30 has at least the mandible You can take a picture of the area of the mouth that contains it.

Referring to FIG. 4, the first unit 30 of the 3D mouth scanner 10 using the omnidirectional optical system according to the embodiment of the present invention may include a plurality of omnidirectional optical systems 100.

For example, as shown in FIG. 4, it may include two omnidirectional optical systems 100 in which at least one region is exposed on the upper side and the lower side of the first portion 30, When the first portion 30 is inserted into the patient's mouth, the oral cavity region including the mandible and the upper jaw can be photographed from the two omnidirectional optical systems 100. After the first portion 30 is inserted into the patient's mouth , All of the oral region including the mandible and the maxilla can be photographed at once, or the oral region including the mandible and the oral region including the maxilla can be simultaneously or sequentially or selectively photographed.

5 and 6, the first part 30 of the 3D mouth scanner 10 using the omnidirectional optical system according to the embodiment of the present invention can rotate in the direction of the arrow about the position control part 51. [

When the first portion 30 of the 3D mouth scanner 10 shown in FIG. 5 or 6 is inserted into the oral cavity of the patient, one omnidirectional optical system 100 is used in accordance with the rotation of the first portion 30 All areas of the mouth can be photographed.

Particularly, a rail 52 is formed on a part of the circumference of the first part 30 of the 3D mouth scanner 10 of FIG. 6, and as the position control part 51 moves along the rail 52, (30) may rotate in the direction of the arrow.

5, the first part 30, which is rotatable, is inserted into the oral cavity of the patient and the first part 30 is rotated in the oral cavity of the patient, An area in the oral cavity facing the subject 100 can be continuously shot with a still cut or moving picture.

In addition, as shown in FIG. 6, the rotatable first portion 30 can photograph the oral cavity image and the oral cavity image in real time in the moving region toward the patient's mouth.

However, it is not limited that the first unit 30 is rotated as shown in FIGS. 5 and 6, but both of the rotational movements of FIGS. 5 and 6 may be performed, and the rotational movement of the first unit 30 may be performed .

Meanwhile, the position control unit 51 may be driven by a drive unit included in the 3D mouth scanner 10, and the drive unit may be, for example, a small motor, Any method can be used as long as it can control the movement of the second unit 50 independently of the second unit 50.

7 is a perspective view of a 3D oral scanner using an omnidirectional optical system according to another embodiment.

Referring to FIG. 7, the 3D oral scanner 10 using the omnidirectional optical system may include an omnidirectional optical system 100 rotatable in a predetermined direction inside the first unit 30. In this case, as shown in FIG.

The omnidirectional optical system 100 can be rotated in a predetermined direction based on the driving force from the position control unit 51. In this case, the first unit 30 can be kept stationary.

It is possible to prevent the first part 30 from rotating in the oral cavity to reduce the patient's feeling of rejection and to increase the size of the size of the first part 30 compared to the first part of the embodiment of FIGS. Can be greatly increased.

FIG. 8 is a perspective view of a 3D mouth scanner using a omnidirectional optical system according to still another embodiment, further comprising a light exit omnidirectional optical system.

8, the first part 30 of the 3D oral scanner 10 may include an omnidirectional optical system 100 and a light exit omnidirectional optical system 800, and the omnidirectional optical system 100 and the optical exit / The light emitted from the light output omnidirectional optical system 800 is irradiated to the subject and the light reflected by the subject is incident on the omnidirectional optical system 100 .

The omnidirectional optical system 100 and the optical outgoing omnidirectional optical system 800 may be provided on the first unit 30 in a plurality of positions. In this case, as shown in Fig. 4, May be installed.

7, the omnidirectional optical system 100 and the optical outgoing omnidirectional optical system 800 can be rotated in the predetermined direction in the first unit 30 while the first unit 30 is fixed .

FIG. 9 is a perspective view of a 3D mouth scanner using a omnidirectional optical system according to still another embodiment of the present invention, further comprising a protection unit.

Referring to FIG. 9, the 3D oral scanner 10 using the omnidirectional optical system may include a protective portion 31.

The protective portion 31 may be disposed so as to surround at least one region of the outer surface of the first portion 30.

The protector 31 may have an elastic material, but is not limited thereto.

The protection unit 31 prevents damage to the skin in the oral cavity when the 3D mouth scanner 10 is inserted into the oral cavity and causes oral pain to the patient due to impact with the teeth, It is possible to prevent the scanner 10 from being damaged.

The protective portion 31 may be installed on the first portion 30 in a removable manner.

10 is a schematic view of a case where a 3D mouth scanner using an omnidirectional optical system further including a bit unit is inserted into the oral cavity.

Referring to FIG. 10, the 3D oral scanner 10 using the omnidirectional optical system may further include a byte unit 52 installed in the second unit 50.

The byte portion 52 may be provided in an area adjacent to the first portion 30 of the upper surface and the back surface region of the second portion 50 so that the first portion 30 is inserted into the patient's mouth, The central incisor of the maxilla and the central incisor of the mandible can contact the bite 52.

The bite portion 52 may further include a groove into which the central teeth of each of the upper and lower mandible can be inserted.

The bite portion 52 may be a groove formed on the upper surface and the lower surface of the second portion 50 for allowing the central teeth of the upper and lower mandible to be inserted.

The 3D mouth scanner 10 can be fixed and supported by the pressure from the upper and lower mandibles of the patient applied to the bite portion 52 and the movement of the 3D mouth scanner 10 unintended during the photographing of the oral cavity and the movement of the patient The unnecessary flow of the maxilla and mandible can be minimized.

However, the present invention is not limited to the configuration in which the bite portion 52 is provided in the second portion 50 as shown in the drawing, but the bite 52 may be formed in the upper surface of the second portion 5, So that the byte portion can be formed.

FIG. 11 is a top view of a 3D mouth scanner further including a mirror part, and FIG. 12 is a schematic diagram showing that light reflected by a mirror part enters into an omni-directional optical system when a 3D mouth scanner is inserted into an oral cavity.

Referring to FIGS. 11 and 12, the 3D oral scanner 10 using the omnidirectional optical system may further include a mirror unit 200.

When the 3D oral scanner 10 is inserted into the oral cavity, teeth may be arranged between the first portion 30 and the mirror portion 200.

The mirror unit 200 is disposed outside the oral cavity and includes a mechanism capable of retroreflecting the light reflected from the side of the teeth that is exposed to the outside when the patient opens his mouth, for example, from one side of the teeth, Can be added.

The mirror unit 200 may include a first mirror unit 210 and a second mirror unit 220.

Reflective materials may be formed on inner regions of the first and second mirror parts 210 and 220 facing the first part 30.

The first and second mirror units 210 and 220 may be integrally formed and separately manufactured separately from each other. The first and second mirror units 210 and 220 may be formed as a U- But the present invention is not limited thereto.

The first mirror part 210 may be formed on one side of the second part 50 and the second mirror part 220 may be formed on the other side of the second part 50.

The first mirror portion 210 may extend from the second portion 50 and extend along one direction around the first portion 30 in a spaced-apart relationship with the first portion 30, The mirror portion 220 may extend from the second portion 50 and extend in the other direction around the first portion 30 in a spaced apart relationship with the first portion 30. That is, Each of the second mirror portions 210 and 220 may cover a part of the outer surface of the first portion 30.

The extended length of each of the first and second mirror portions 210 and 220 may be the length from the average central tooth to the molar of the patient's teeth but is not limited thereto and may be the length of the light reflected by the central teeth to the molar It can be long enough to reach this mirror.

In the first omnidirectional region 100a of the omnidirectional optical system 100, the reflected light may be incident on the inner enamel region of the tooth, the upper region of the enamel of the tooth, and the region including the oral gingival region, The second reflected light from the inside of the mirror unit 200 may be incident on the second omnidirectional region 100b of the second omnidirectional region 100b.

However, the present invention is not limited to this. Light reflected from the enamel region of the teeth may be incident on the first omnidirectional region 100a according to the curvature of the lens of the omnidirectional optical system 100, The light from the region in the mouth that reflects light that does not reach one omnidirectional region 100a may be reflected back to the second omnidirectional region 100b.

On the other hand, the first omnidirectional region 100a shown in the figure is a region including the center region of the omnidirectional optical system 100 exposed in the first unit 30 and the second omnidirectional region 100b is an area including the central region of the omnidirectional optical system 100 exposed in the first omnidirectional region 100a , But the present invention is not limited thereto. For example, the second omnidirectional region 100b may be a region adjacent to the oral cavity in the oral cavity.

That is, the first omnidirectional region 100a is a region where the reflected light enters when the mirror unit 200 is absent and the second omnidirectional region 100b is a region excluding the first omnidirectional region 100a Thus, a region in which no light is incident in the area of the omnidirectional optical system 100 and can not be a photographed region can be utilized as the second omnidirectional region 100b.

Also, the photographing unit 300 may sequentially progress, selectively progress, or simultaneously perform a detection operation of the light coming from the first omnidirectional region 100a and a detection operation of the light coming from the second omnidirectional region 100b.

Each of the first and second mirror parts 210 and 220 may extend in the back direction of the second part 50 and may be connected to each other at the back surface of the second part 50. Accordingly, The reflected light from the incisor can reach the area corresponding to the back surface of the second part 50 of the area of the mirror part 200 even when the cutting tool 50 mounted on the cutting tool 50 is caught, The entire image of the teeth can be photographed without missing areas.

The first and second mirror units 210 and 220 may simultaneously move in response to the movement of the first unit 30 or the omnidirectional optical system 100, The angle can be changed independently of the angle.

16 is a cross-sectional view of an omnidirectional lens according to another embodiment, and Fig. 17 is a sectional view of an omnidirectional lens according to another embodiment of the present invention. Fig. Sectional view of the lens array.

13 and 15, the omnidirectional optical system 100 of the 3D oral scanner 10 according to the embodiment of the present invention may include a omnidirectional lens 110. [

The omnidirectional lens 110 may be an aspherical lens.

The photographing unit 300 can receive an omnidirectional image from the omnidirectional lens 110. [

In the state where the first portion 30 of the 3D oral scanner 10 is inserted into the oral cavity, the photographing unit 300 can photograph at least one of the upper and lower jaws.

In Figs. 14 and 15, the central region of the image may be defined as a non-imaging region, which is a non-imaging region.

The omnidirectional lens 110 may include a plurality of refracting surfaces and a plurality of reflective coating surfaces.

The omnidirectional lens 110 may include two refracting surfaces and two reflecting coated surfaces.

And may include a refractive portion 111, a horizontal portion 113, a reflective coating 114, an inner depression 115, an inner refractive portion 116 and an inner reflective coating 117.

The reflective portion 111 may be formed to refract incident light and the horizontal portion 113 may be formed horizontally at the end of the refracting portion 111. The reflective coating 114 may be formed on the horizontal portion 113, The reflective coating 114 may reflect incident light reflected from the inner reflective coating 117 to provide incident light to the inner recess 115. The inner recess 115 may reflect the reflective coating 114 The inner reflection coating 117 is formed on the inner refraction portion 116 so that incident light incident from the refraction portion can be reflected by the reflection coating.

The omnidirectional lens 110 itself is formed as a spherical surface rather than an aspherical surface, thereby enhancing the ease of processing and reducing manufacturing cost.

In addition, the refracting portion 111, the inner concave portion 115, and the inner refracting portion 116 are formed as spherical surfaces, so that it is possible to perform omnidirectional photographing while solving the problem of difficult machining at the time of aspherical surface.

The inclination of the inner refracting portion 116 may be steeper than the inclination of the refracting portion 111 based on the imaginary central axis CL of the omnidirectional lens 110. [

The inner concave portion 115 may also be formed to focus.

The omnidirectional optical system 100 may further include a lens array 150 for receiving incident light provided rearward by the inner concave portion 115.

In addition, since the entire area of the tooth can be photographed by one shot without having to synthesize a plurality of photographed images by photographing a plurality of times for each region of the tooth, distortion caused by image synthesis can be prevented, It is possible to greatly reduce the time required for the examination and inspection.

Referring to FIGS. 16 and 17, the omnidirectional lens 110 according to another embodiment has a first incident surface 121 convex on one surface thereof and a first emitting surface 123 formed on the other surface thereof, A first lens 120 having a first reflection surface 125 formed at the center of a surface 121 and a second reflection surface 131 formed on one surface and a convex second reflection surface 133 formed on the other surface, And a second lens 130 having a second exit surface 135 formed at the center of the second reflection surface 133.

The light rays incident through the first incident surface 121 are reflected by the second reflection surface 133 via the joining surfaces of the first emission surface 123 and the second incident surface 131 and reflected by the second reflection surface 133 Is reflected by the first reflecting surface 125 through the joining surfaces of the first emitting surface 123 and the second incident surface 131 and then reflected by the first emitting surface 123 and the second incident surface 131. [ The light can be emitted through the second exit surface 135 via the joining surface of the light guide plate 131.

The first lens 120 and the second lens 130 are reflection refraction lenses that use reflection and refraction of light rays and can acquire a 360 degree omni-directional image through the first lens 120 and the second lens 130 have.

It is preferable that the first reflective surface 125 and the second reflective surface 133 are coated with a material capable of reflecting visible light, such as aluminum or silver. Further, although the first reflecting surface 125 and the second emitting surface 135 are shown flat on the drawing, they may be convex or concave only in one embodiment.

The first lens 120 is a lens to which an external light beam is incident. The first incident surface 121 may be convex on one surface, and an external ray may be incident on the first incident surface 121. A first exit surface 123 is formed on the other surface of the first lens 120 so that light rays incident on the first incident surface 121 can be emitted to the first exit surface 123. In addition, the first reflecting surface 125 may be formed at the center of the first incident surface 121.

The second lens 130 is a lens that is bonded to the first lens 120. Specifically, a second incident surface 131 is formed on one surface of the second lens 130, 1 exit surface 123 of the light guide plate. A convex second reflecting surface 133 is formed on the other surface of the second lens 130 and a second reflecting surface 133 is formed in the center of the second reflecting surface 133, An exit surface 135 may be formed.

The light rays incident from the outside are refracted at a predetermined angle and gathered by forming the first incident surface 121 to be convex. For this reason, it is preferable that the diameter of the second lens 130 is smaller than the diameter of the first lens 120.

Further, the joining surfaces of the first exit surface 123 and the second incident surface 131 are formed so as not to be flat, but may be formed so as to correspond to each other, and then they may be closely contacted to each other.

The omnidirectional lens 110 may also include at least one lens disposed behind the second exit surface 135.

The lenses of the lens array 150 are arranged in a line with the same optical axis, and as described above, the crown series C and the Flint series lens may be combined for chromatic aberration correction, but the present invention is not limited thereto. For example, crown series can be made of NBK7 material, Flint series can be made of NSF15, NSF8 material, but not limited thereto. As shown in the above example, if the lens material is limited to three types, it is possible to reduce the kinds of materials, which is advantageous for mass production.

In addition, the lens array 150 may include a shutter type infrared filter, but the present invention is not limited thereto. Also, the infrared filter can be closed to block the infrared ray, and the infrared ray filter can be opened to pass the infrared ray.

On the other hand, the refraction angles of the outer surface and the inner surface of the omnidirectional lens 110 are not limited to those described above, and can be designed differently for each area of each surface.

Fig. 28 is a view showing the mandible arch, Fig. 29 is a view showing the angle of the mandible, Fig. 30 is a view showing the dental arch of each form, Fig. 31 is a view showing the distance between teeth of the maxilla and mandible FIG. 32 is a view showing the long diameter of the dental arch, FIG. 33 is a view showing the shape and crown angle of the Monson and hammer teeth, FIGS. 34 and 35 are views showing the shape and size of the mandibular molar clinical crown, Is a view showing a tooth standard value.

The refraction angle and outward curvature of each of the outer and inner surfaces of the omnidirectional lens 110 can be determined in consideration of the average measurement value of the human arch, the measurement values of the upper and lower arches and the tooth size, and the combined widths of the child canine and premolar.

More specifically, it can be determined in consideration of the arithmetic measurement values of FIG. 28 and Tables 1 to 3.

Here, the canine height (CH) means the distance from the midpoint between the left and right central teeth to the point where the lateral line and the baseline meet, and the second molar height (M2H) (CW) means the distance between the right and left canine cusps, the first molar width (M1W) of the first molar is the distance between the first molar and the first molar And the second molar width (M2W) of the second molar means the distance between the distal and second molar distal centers of the distal caudal cusps.

(Mm) CH M2H CW M1W M2W Overall average 5.19 39.81 27.16 46.93 56.09 man 5.34 40.19 27.41 47.72 57.27 Woman 4.95 39.21 26.67 45.70 54.32

Table 2 shows the mean values of men and women regarding the width of the arch.

In this case, IC denotes the intercanine distance, CH denotes the canine-labial height of the cot, IM denotes the distance between the mesial lips of the first molar (Intercanine distance means the distance between the lingual cusps on the basis of the lingual cusp of the first interchange of the first interchange and M2 is the distance between the lateral lingual cusps on the basis of the lingual cusp of the second interchange lingual socket. , And IH denotes the distance between the hamular notch (Interhamular notch distance).

(Mm) IC CH IM M1 M2 IH Overall average 36.44 40.08 43.14 64.89 68.58 49.80 man 36.67 40.29 43.56 65.58 69.29 50.70 Woman 35.83 39.52 42.05 62.92 66.30 48.20

Table 3 shows the mean values of men and women regarding the distance and vertical height of the arch.

In this case, IP - CI means the distance from incidive papilla to central inciaor, and P - ICL is the distance between the Incidive papilla and Intercanine Iine. CI - LI means the distance from the central incisor to the labial vestibule to the anterior wing war (Central incisor). (HN - OP) is the vertical distance from the hamstring to the occlusal plane (MI - BV), and MI - BV is the vertical distance from the mesial lingual bridge of the first accessory to the buccal vestibule. And PV - OP is the vertical distance from the Palatal vault to the occlusal surface.

(Mm) IP - CI P - ICL F - CI CI - LV MI - BV HN - OP PV - OP all
Average 9.52 53.27 0.40 21.84 17.45 6.84 19.95 man 9.46 53.93 0.51 22.01 17.56 6.91 20.19 Woman 9.63 52.08 0.11 21.00 17.08 6.70 19.12

Also, the refraction angle and the outer curvature of each of the outer and inner surfaces can be determined in consideration of Tables 4 to 6.

Table 4 shows the measurements of the parameters of the face and teeth.

Here, FW means the face width, WMCI means the maxillary central incisal width, ICD means the maxillary canine width, and IAW means the wing distance.

Table 5 shows the correlation analysis values using the parameter measurements of the face and teeth according to Table 4.

Table 6 shows the equations for the correlation among the four measurement items described above.

The angle of refraction and the outer curvature of the outer surface and the inner surface of the inner surface are respectively the angle formed between the teeth according to FIGS. 29 and 30, Table 7 and Table 8, the average root core diameter of the adult male and female according to Table 10, The average upper and lower arch and tooth size measurements of the average person, and the width controversy of the child canine and premolar according to Table 12 and Table 13.

(º) IA CA Overall average 138.32 133.57 man 137.54 134.48 Woman 139.54 132.17

The right canine angle (RCA) in FIG. 29 and Table 7 means the angle of aeg, the right canine angle (LCA) in the right canine angle (RCA) (CA) means the average of the sum of the left and right canine angles (angle of ace + angle of egi) / 2.

Table 8 shows the results of the determination of the coefficient of determination (R-square) by means of the least squares method, which is the cubic function formula of the three curved arches using the measured points. The dental arches obtained by the U and O shapes and the least squares method can be shown in FIG.

In Fig. 9, the dentition represents the dentition, Central incisor represents the central incisor, lateral incisor represents the lateral incisor, Canine represents the canine, 1st premolar represents the first premolar, 2nd premolar represents the second premolar, 1st molar represents the first molar, and 2nd molar represents the second molar .

Table 11 shows the results of comparing the average of the width contours of the upper and lower left and right permanent canines and premolars according to the sex measured in the gypsum model and the size of the left and right teeth.

Table 12 shows the results of width comparisons and width comparisons of width comparisons and mandibular permanent 4 anterior teeth in male and female maxillary teeth.

The refraction angle and the outer curvature of the outer surface and the inner surface of each region are the average of male and female genders of the distance between the two canine crown tongues of FIGS. 31, 32 and 14, the average of male and female gender of the distance of the first molar tongue- The average value of the first premolar's buccal cuspid gender, the mean value of the second molar buccal cusp of the second molar, the average value of the male and female dental arches of Table 18, the shape and cusp angle of the monson and mandibular dental arches of FIGS. 33 and 19, The sizes of mandibular molars in Figs. 35 and 20, and the tooth standard measurement tables in Figs. 36 and 21.

Tables 14 to 18 are the average values measured based on the seven survey communities shown in Table 13.

Cluster number Male (person / age) Female (person / age) Total (persons) age One 176 64 240 21-26 2 138 19-29 87 17-28 225 3 20 20 40 15-22 4 20 20 40 5 237 131 368 Average 16.3 6 43 Average 24.40 28 Average 24.36 23-27 7 210 210

Unit: mm The distance between the two dogs' pyloric pylons (① in Figure 31) One 2 3
(Canine palatal suture is the center point of the Yan) 5 6 7 division Maxilla Mandatory Maxilla Mandatory Mandatory Mandatory Maxilla Mandatory man 36.67 27.41 27.36 20.07 30.63 Woman 35.83 26.77 27.61 20.56 30.73 34.38 26.42 all 36.44 27.16 26.59 20.36 26.75

The distance between the lingual cusp of the first molar (Fig. 31 ②) Article number One 2 3 5 6 7 division Maxilla Mandatory Maxilla Mandatory Mandatory Mandatory Maxilla Mandatory man 43.56 47.72 36.04 35.6 51.15 Woman 42.05 45.7 34.79 34.6 52.12 52.05 44.83 all 43.14 46.93 36.74 34.57 54.61

First premolar angle bridge pylon (③ in Figure 31) 4 division Maxilla Mandatory man 44.8 41.16 Woman 44.55 36.41

Second Daegu Confiscation Crossing Pillar (④ in Figure 31) 2 Mandatory man 57.24 Woman 54.32 all 56.09

Long arches Article number One 2 3 4 5 6 7 division Maxilla Mandatory Maxilla Mandatory Maxilla Mandatory Mandatory Mandatory Maxilla Mandatory man 53.93 40.19 27.33 22.95 38.78 36.22 26.77 Woman 52.08 39.21 26.63 22.73 38.67 33.15 26.98 28.69 24.38 all 53.27 39.81 26.84 22.49 25.53 standard Location Second molar First molar First molar First molar First molar First molar First molar

Measurement parameters Mean (SD) Arch form ICR (mm) 23.37 (7.84) IMR (mm) 27.48 (1.26) IMA (°) 141.71 (9.98) ICA (°) 95.02 (4.04)

① ② ③ ④ ⑤ ⑥ ⑦ ⑧ teeth Length of crown Length of root Root of crown Root of cervical spine Crown Sagittal plane of cervical area Anxious
Height line height Centipede
Height line height Maxilla Central incisor 10.5 13.0 8.5 7.0 7.0 6.0 3.5 2.5 Lateral incisal 9.0 13.0 6.5 5.0 6.0 5.0 3.0 2.0 Canine 10.0 17.0 7.5 5.5 8.0 7.0 2.5 1.5 1 premolar 8.5 14.0 7.0 5.0 9.0 8.0 1.0 0.0 2 premolars 8.5 14.0 7.0 5.0 9.0 8.0 1.0 0.0 1 molar 7.5 12.5 10.0 8.0 11.0 10.0 1.0 0.0 2 molars 7.0 11.5 9.0 7.0 11.0 10.0 1.0 0.0 3 molars 6.5 11.0 8.5 6.5 10.0 9.5 1.0 0.0 Mandatory Central incisor 9.0 12.5 5.0 3.5 6.0 5.3 3.0 2.0 Lateral incisal 9.5 14.0 5.5 4.0 6.5 5.8 3.0 2.0 Canine 11.0 16.0 7.0 5.5 7.5 7.0 2.5 1.0 1 premolar 8.5 14.0 7.0 5.0 7.5 6.5 1.0 0.0 2 premolars 8.0 14.5 7.0 5.0 8.0 7.0 1.0 0.0 1 molar 7.5 14.0 11.0 9.0 10.5 9.0 1.0 0.0 2 molars 7.0 13.0 10.5 8.0 10.0 9.0 1.0 0.0 3 molars 7.0 11.0 10.0 7.5 9.5 9.0 1.0 0.0

18 is a perspective view of a spherical scanner including an information input unit, which is a 3D oral scanner using an omnidirectional optical system according to another embodiment of the present invention.

Referring to FIG. 18, the 3D oral scanner 10 using the omnidirectional optical system according to another embodiment of the present invention may include at least one information input unit 70.

The information input unit 70 may be a physical button or a touch input button.

The information input unit 70 may be a display device.

The display device may be a liquid crystal display (LCD) device, a field emission display (FED) device, a plasma display panel (PDP) device, an electroluminescence device (EL) An electrophoretic display system, and an organic light emitting diode display system.

When the information input unit 70 is a display device, the display device may include a touch panel, and the user may input information using the touch function of the touch panel.

The information input unit 70 is disposed in one area of the upper surface of the second unit 50 but the present invention is not limited thereto and the information input unit 70 may include at least one of the first and second units 30 and 50 And may be disposed to be exposed to any surface of any one of the first and second portions 30,

When the information input unit 70 is a physical button, the physical button is located in the second unit 50 and the display unit can be located in the first unit 30 or the second unit 50. Also, When the apparatus is provided separately from the information input unit 70, the display apparatus may be installed on the second unit 50 in a detachment manner, and an image photographed by the omnidirectional optical system 100 may be displayed on the display unit ≪ / RTI >

On the other hand, the touch panel can be divided into an add-on type, an on-cell type, and an in-cell type according to its structure. Specifically, the attachment type is a method of separately manufacturing a display device and a touch panel, attaching a touch screen to an upper glass substrate constituting a display device, and an upper type is a method of attaching a touch screen Are formed directly on the substrate. In addition, the integrated type has a touch panel built in a display device.

In addition, the touch panel can be divided into a light type and a capacitance type touch panel. The optical touch panel is a method of forming a light sensing layer on a thin film transistor substrate array of a display device and recognizing light reflected through an object existing in a touched portion by using light from a backlight unit or infrared light. When the display device includes the organic light emitting diode panel, the backlight unit is omitted. The capacitance type touch panel may be one of a self capacitance type and a mutual capacitance type.

The processor 20 incorporated in the 3D oral scanner 10 receives the user's command signal from the information input unit 70 and controls the photographing unit 300 and the light source unit 500 And the position control unit 51. For example, the command signal of the user can be a photographing command signal, and the processor 20 photographs the mouth in accordance with the photographing sequence signal, The processor 20 may convert 2D data into 3D data.

Also, the processor 20 may convert the image information of the photographing unit 300 into the 3D data by the processor 20. However, the present invention is not limited to this, To the server, and the external server may generate the 3D data based on the received photographing information.

19 is a perspective view of a spherical scanner including a lens protecting part, and FIG. 20 is a view illustrating a heating member provided in a lens protecting part and a lens protecting part, FIG. 19 is a perspective view of a 3D oral scanner using an omnidirectional optical system according to another embodiment of the present invention .

Referring to FIGS. 19 and 20, the 3D oral scanner 10 using the omnidirectional optical system according to another embodiment of the present invention may include a lens protecting portion 90.

The lens protecting portion 90 may be installed in the omnidirectional optical system 100. [

The lens protecting portion 90 is detachable from the omnidirectional optical system 100 so that the lens protecting portion 90 can be replaced if the lens protecting portion 90 is contaminated.

The lens protecting portion 90 surrounds the omnidirectional lens 110 and may be disposed in the omnidirectional optical system 100 or the first unit 30.

The lens protecting portion 90 may be transparent, and may be made of plastic or glass. However, the present invention is not limited thereto, and any material can be used as long as it is transparent.

A heat generating member 91 is provided in the lens protecting portion 90 so that heat generated from the heat generating member 91 is conducted to the entire region of the lens protecting portion 90, The heating member may be disposed inside or outside the lens protecting portion 90 or may be inserted into the inside of the lens protecting portion 90, Edge region or the central region of the lens protecting portion 90 corresponding to the dark region 2 of the photographed image.

The lens protecting portion 90 may also include an antifog layer, and the antifog layer may be made of a transparent polyurethane containing a surfactant, and the surfactant may have an isocyanate reactive portion, a hydrophobic and a hydrophilic region . The anti-fogging layer may have a thickness of 1um or more, but is not limited thereto.

21 is a block diagram of an artificial tooth processing apparatus having a 3D mouth scanner according to an embodiment of the present invention.

Referring to FIG. 21, the artificial tooth processing apparatus 1 may include a 3D oral scanner 10, a data conversion apparatus 13, and a milling apparatus 15.

The data conversion device 13 can receive the image information that is three-dimensionally measured by the 3D mouth scanner 10 and converted into digital data, and can convert the image information into 3D data.

Further, the data conversion apparatus 13 may generate production data, convert it into a milling strip, and provide it to the milling apparatus 15.

CAD, or CAM based data conversion apparatus. However, the present invention is not limited thereto, and any apparatus that can convert 2D data into 3D data is possible.

The milling device 15 can generate an artificial tooth using the milling strip received from the data conversion device 13. [

The milling device 15 is a two-axis milling device in which milling direction points are spatially determined in two directions, a three-axis milling device in which milling direction points are spatially determined in three directions, and a tension bridge A four-axis milling apparatus having a fourth axis capable of rotating in various ways, and a 5-axis milling apparatus having a fifth axis of a spindle rotatable in addition to the four-axis axis described above. However, the present invention is not limited thereto .

Further, the 3D oral scanner 10, the data conversion device 13, and the milling device 15 can communicate with each other in a wired or wireless manner.

For example, wireless communication methods such as WLAN (Wireless LAN), Wi-Fi, Wibro, WiMAX, HSDPA, and Bluetooth It is possible to use wired communication methods such as Ethernet, xDSL (ADSL, VDSL), HFC (Hybrid Fiber Coaxial Cable), FTTC (Fiber to the Curb) and FTTH (Fiber To The Home) May be used.

On the other hand, it is necessary to measure the depth of the photographed image in order to obtain an image in a three-dimensional oral cavity using the 3D oral scanner 10.

Hereinafter, a 3D data acquisition method according to depth measurement will be described.

The 3D mouth scanner 10 according to the embodiment of the present invention can be used to take a picture in stereo or steel mode, and can take a single shot of the oral cavity, multiple oral shots, and an omnidirectional optical system 100 have.

A reference point is also displayed on the second part 5 of the 3D mouth scanner 10 according to the embodiment so that the surgeon can determine the degree of insertion of the 3D mouth scanner 10 into the patient's mouth based on the reference point

In addition, the 3D mouth scanner 10 according to the embodiment can photograph not only the dentition but also all areas within the oral cavity such as the gums and the mouth openings, the mouth openings, the palatal palate, the oral cavity, and the oral cavity.

In addition, the 3D oral scanner 10 according to the embodiment can minimize the number of times of shooting, minimizing the process of synthesizing the captured images, preventing resolution and resolution degradation due to synthesis, and acquiring 3D images with excellent resolution and resolution And the 3D data generation time can be greatly shortened.

Hereinafter, a 3D data acquisition method according to depth measurement will be described.

- 3D data acquisition method by depth measurement

<Pattern mask method>

22 is a diagram schematically showing a configuration diagram of a 3D mask scanner of a pattern mask system.

Referring to FIG. 22, the 3D mouth scanner 10 using the omnidirectional optical system according to the embodiment of the present invention can measure the oral cavity three-dimensionally by a pattern mask method.

The 3D oral scanner 10 may further include a light exit omnidirectional optical system 800. The light exit omnidirectional optical system 800 may have the same structure as the omnidirectional optical system 100. [

Further, the light output omnidirectional optical system 800 may include a light output omnidirectional lens 810, and the light output omnidirectional lens 810 may have the same structure as the omnidirectional lens 110.

The photographing unit 300 may include an image sensor 310.

The image sensor 310 may be a photoelectric conversion element.

The light source unit 500 may include a light source 510 and a pattern filter 530.

The light emitted from the light source 510 passes through the pattern filter 530 and the pattern structure light determined by the pattern filter 530 can be transmitted through the light output omnidirectional optical system 800 and irradiated onto the subject S. [ The light reflected from the subject S can reach the image sensor 310 through the omnidirectional optical system 100.

Further, the omnidirectional optical system 100 and the optical output-type omnidirectional optical system 800 may have predetermined angles with respect to the horizontal plane, and the predetermined angle may be 0 degree and 180 degrees or less.

The photographing unit 300 may further include a first diaphragm 320 and the light source unit 500 may further include a second diaphragm 520.

In this case, the light emitted from the light source 510 passes through the pattern filter 530, and light having a pattern structure determined by the pattern filter 530 is emitted to the second diaphragm 520, And the light reflected by the light irradiated on the subject S can reach the image sensor 310 through the omnidirectional optical system 100 and the first iris 320 have. The two-dimensional image detected by the image sensor 310 can be converted into a three-dimensional image using triangulation.

<Projector type>

FIG. 23 is a view schematically showing a configuration diagram of a 3D mouth scanner of a projector type.

Referring to FIG. 23, the 3D oral scanner 10 using the omnidirectional optical system according to the embodiment of the present invention can measure the oral cavity three-dimensionally by a projector method.

The 3D oral scanner 10 may include a projector 700 and a light exit omnidirectional optical system 800. The optical exit omnidirectional optical system 800 may have the same structure as the omnidirectional optical system 100. [

Further, the light output omnidirectional optical system 800 may include a light output omnidirectional lens 810, and the light output omnidirectional lens 810 may have the same structure as the omnidirectional lens 110.

Further, the omnidirectional optical system 100 and the optical output-type omnidirectional optical system 800 may have predetermined angles with respect to the horizontal plane, and the predetermined angle may be 0 degree and 180 degrees or less.

The projector 700 may be any one of a liquid crystal display (LCD) method, a liquid crystal on silicon (LCOS) method, and a digital light processing (DLP) method, but the present invention is not limited thereto, Any device capable of irradiating the image with the image S can be used.

The projector 700 may be provided separately from the light source unit 500 or may include the light source unit 500.

A predetermined pattern structured light formed by the projector 700 is irradiated to the subject S through the light output omnidirectional optical system 800 and the light reflected by the light irradiated on the subject S passes through the omnidirectional optical system 100, And can reach the image sensor 310. The two-dimensional image detected by the image sensor 310 can be converted into a three-dimensional image using triangulation.

More specifically, the predetermined pattern structure light is irradiated onto the subject S, and a pattern structure formed on the subject S is received by the image sensor 310 to construct a three-dimensional image, The three-dimensional coordinates can be generated by using the intersection of the plane equation of the corresponding identification symbol and the actual position formed in the subject S, which exists in advance.

In addition, in order to enhance the pattern structure light, an inverted pattern structure light may be used.

The predetermined pattern may be a Gray pattern or a Color pattern.

Meanwhile, the pattern may be provided in a memory in the 3D oral scanner 10 so that the processor 20 reads the pattern structure information stored in the memory so that the pattern structure light can be emitted through the projector 700. However, the present invention is not limited to this, and the processor 20 may receive various pattern information from an external server.

<Photometric stereo method>

FIG. 24 is a schematic view showing a configuration of a 3D mouth scanner of a photometric stereo system. FIG.

Referring to FIG. 24, the 3D oral scanner 10 using the omnidirectional optical system according to the embodiment of the present invention can acquire a three-dimensional image from a two-dimensional image in the oral cavity by a photometric stereo method.

The 3D oral scanner 10 may include at least two light sources 500 installed in the first unit 30.

The light source unit 500 may be installed on the outer surface of the first unit 30, but the light source unit 500 may be disposed at a position where light can be emitted to the outside, more specifically, Any position of the first part 30 is possible.

The light source unit 500 may be installed in the first unit 30 adjacent to the omnidirectional lens 110.

The plurality of light source units 500 can be sequentially or selectively driven. For example, when the light source 500 includes the first and second light sources 511 and 512, the first and second light sources 511 and 512 may be disposed on the first unit 30, When one of the first and second light sources 511 and 512 is turned on, the other one is turned off, and when the other one is turned off, the other one may be turned off.

The processor 20 in the 3D mouth scanner 10 corrects the 2D data detected from the image sensor 310 based on the already stored sorting algorithm and corrects the motion and corrects the lens distortion and the light scattering correction To generate 3D data.

As a method of generating 3D data, for example, when the light source unit 500 includes N light sources, a view vector (V) transmitted to the image sensor 310 and N light sources A light shading formula as shown in Equation 1 below is applied based on the reflected light vector Ln and the illumination energy I and reflection coefficient kd of each light vector to calculate a normal vector Can be generated.

[Equation 1]

Then, from the 3D normal vector of each pixel of the image sensor 310, the depth can be calculated based on Equation (2), and 2D data can be converted into 3D data based on the depth information.

&Quot; (2) &quot;

<3D image restoration method based on multiple images>

FIG. 25 is a diagram schematically illustrating the configuration of a 3D oral scanner having a multi-image-based three-dimensional image reconstruction method.

Referring to FIG. 25, a 3D mouth scanner 10 using an omnidirectional optical system according to an embodiment of the present invention is a 3D image reconstruction method based on a multi-image (2. Structure From Motion 3D Reconstruction) Dimensional images can be acquired.

The omnidirectional optical system 100 coupled to the first unit 30 may flow inside the first unit 30 and flow together with the first unit 30. In this case, May flow together in correspondence with the flow of the omnidirectional optical system 100.

The light source unit 500 may be housed in at least one of the first and second units 30 and 50 or may be provided outside the first unit 30 to provide light in the oral cavity.

The photographing unit 300 may receive a continuous image according to the flow of the omnidirectional optical system 100 and the processor 20 may extract a keypoint from the continuous image. A Harris point or SIFT algorithm can be used to extract feature points from an image, but not limited thereto, any algorithm capable of extracting feature points from successive images can be used.

In addition, the processor 20 may track the moving position of the photographing unit 300 on the world coordinates based on the feature point matching optimization technique. The least square, RANSAC, or Levenberg-Marquardt algorithm may be used for the feature point matching optimization technique. But is not limited thereto.

In addition, the processor 20 extracts a stereo depth based on the continuous image and the position information of the photographing unit 300, and converts the 2D depth into 3D data based on the stereo depth.

<Adjustment method of omnidirectional lens focal length>

26 and 27 are sectional views of the liquid lens.

Referring to FIGS. 26 and 27, the 3D oral scanner 10 using the omnidirectional optical system according to the embodiment of the present invention can acquire a three-dimensional image from a two-dimensional image in the oral cavity by the omnidirectional lens focal length adjusting method.

The omnidirectional optical system 100 may include a omnidirectional lens 110 and the omnidirectional lens 110 may be a liquid lens unit 170.

The liquid lens unit 170 includes a first protective glass 171, a second protective glass 172, an oil layer 173 stacked between the first and second protective glasses 171 and 172, A first electrode portion 175 and a second electrode portion 176 disposed at the peripheral portions of the first electrode portion 175 and the second electrode portion 175 for applying a voltage and a first insulating portion 177 and a second insulation portion 178 and a power supply portion 179. [

The voltage generated by the power supply 179 may be controlled by the processor 20.

The liquid lens unit 170 changes the curvature radius and thickness of the oil layer 173 by applying the power supplied from the power supply unit 179 to the first and second electrode units 175 and 176, And the position of the focal point of the light passing through the unit 170 can be changed.

More specifically, when a predetermined voltage is applied to the first and second electrode units 175 and 176, the radius of curvature and thickness of the oil layer 52 can be increased. By increasing the magnitude of the voltage, can do.

The processor 20 converts the 2D data obtained from the photographing unit 300 into 3D data based on the obtained depth information by varying the focusing of the liquid lens unit 170 by adjusting the power supply of the power supply unit 179 .

Meanwhile, the refractive index of the lens unit 170 may be changed according to the pressure control instead of the refractive index change method depending on the voltage, so that the focus can be adjusted.

<Classification method by omnidirectional lens focal distance>

The omnidirectional lens 110 of the omnidirectional optical system 100 according to the embodiment of the present invention includes a first focal length area surrounding the dark spot and a second focal length area surrounding the first focal length area, The image sensor 310 may extract the depth of the 2D image by gradually adjusting the focal point for each of the first and second focal length ranges, and may generate the 3D image based on the depth information.

<Depth measurement method using laser light>

28 is a diagram schematically showing the configuration of a 3D oral scanner of a depth measurement method using laser light.

28, the light source unit 500 of the 3D oral scanner 10 using the omnidirectional optical system according to the embodiment of the present invention can provide a laser beam, and the image sensor 310 includes a position detection sensor Device: PSD).

The position displacement detecting element is an element that generates an electric signal in accordance with the position where the incident light is input.

The 3D oral scanner 10 may include a light exit omnidirectional optical system 800. The light exit omnidirectional optical system 800 may have the same structure as the omnidirectional optical system 100. [

Further, the light output omnidirectional optical system 800 may include a light output omnidirectional lens 810, and the light output omnidirectional lens 810 may have the same structure as the omnidirectional lens 110.

Further, the omnidirectional optical system 100 and the light output omnidirectional optical system 800 may have predetermined angles with respect to the horizontal plane, and the predetermined angle may be greater than 0 degrees and less than 180 degrees.

The light emitted from the light source unit 500 is transmitted through the light output omnidirectional optical system 800 to be irradiated onto the subject S and the reflected and irradiated light passes through the omnidirectional optical system 100 to be subjected to positional displacement detection It can be incident on the device.

Based on the detection result of the electric signal from the positional displacement detection element, the processor 20 calculates the height value S of the subject S based on the change in the imaging position on the sensor of the positional displacement detection element with the height change of the subject S And convert the 2D data into 3D data based on the height value obtained from the height data.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken by way of limitation, It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification, but should be defined by the claims.

1 artificial tooth processing device, 2 tongue area
10 3D mouth scanner, 20 processor
30 Part 1, 31 Protection section
50 Second part, 51 Position control part
52 byte unit, 70 information input unit
90 lens protecting portion, 91 heating member
100 omni-directional optical system, 110 omni-directional lens
111 refracting portion, 113 horizontal portion
114 reflective coating, 115 inner concave
116 inner refraction portion, 117 inner reflective coating
120 first lens, 121 first incident surface
123 exit surface, 125 first reflecting surface
130 second lens, 131 second incident surface
133 second reflection surface, 135 second emission surface
150 lens array, 170 liquid lens section
171 First protective glass, 172 Second protective glass
173 oil layer, 174 aqueous solution layer
175 first electrode portion, 176 second electrode portion
177 first insulation part, 178 second insulation part
179 power supply part, 200 mirror part
210 first mirror portion, 220 second mirror portion
300 image pickup unit, 310 image sensor
320 First stop, 500 Light source
510 light source, 520 second diaphragm
530 pattern filter, 700 projector
800 light output omnidirectional optical system, 810 light output omnidirectional lens

Claims (19)

A first part in which a part or the whole is inserted into the oral cavity;
A second part formed on one side of the first part;
An omnidirectional optical system provided at a part of the first part;
An imaging unit installed in the first unit or the second unit for detecting light received from the omnidirectional optical system and generating an image of the oral cavity;
A projector installed on the first part or the second part for irradiating the oral cavity with pattern structured light; And
And a light exit omnidirectional optical system for irradiating the oral cavity with the pattern structure light
3D Oral Scanner using omnidirectional optical system. The method according to claim 1,
Wherein the omnidirectional optical system includes a omnidirectional lens exposed to the outside of the first unit
3D Oral Scanner using omnidirectional optical system. The method according to claim 1,
And a position controller for connecting the first part and the second part to each other and controlling the flow of the first part
3D Oral Scanner using omnidirectional optical system. The method according to claim 1,
Wherein the photographing unit includes an image sensor
3D Oral Scanner using omnidirectional optical system. 5. The method of claim 4,
The image sensor is a position displacement detecting element
3D Oral Scanner using omnidirectional optical system. 6. The method of claim 5,
And a light source unit for providing light to the oral cavity,
Wherein the light source unit is one of a laser light source and a light emitting diode light source
3D Oral Scanner using omnidirectional optical system. The method according to claim 1,
And a plurality of light sources provided in the first portion for irradiating the oral cavity with light
3D Oral Scanner using omnidirectional optical system. 8. The method of claim 7,
The plurality of light sources may be sequentially or selectively driven
3D Oral Scanner using omnidirectional optical system. delete delete The method according to claim 1,
Wherein the light output omnidirectional optical system includes a light output omnidirectional lens,
Wherein the light output all-directional lens has the same refractive index as that of the omnidirectional lens
3D Oral Scanner using omnidirectional optical system. 12. The method of claim 11,
Wherein the omnidirectional optical system and the optical output / output omnidirectional optical system form a predetermined angle with respect to each other
3D Oral Scanner using omnidirectional optical system. delete A first part in which a part or the whole is inserted into the oral cavity;
A second part formed on one side of the first part;
An omnidirectional optical system provided at a part of the first part; And
And a photographing unit installed in the first or second unit for detecting light received from the omnidirectional optical system to generate an image of the oral cavity
Wherein the omnidirectional optical system is made up of a liquid lens whose refractive index is changed according to an applied voltage,
And a mirror unit installed on the second unit to cover a part of the outer surface of the first unit,
Wherein the mirror unit is located outside the oral cavity and reflects the light reflected from the mouth cavity to provide the omnidirectional optical system
3D Oral Scanner using omnidirectional optical system. 15. The method of claim 14,
Wherein the omnidirectional optical system includes a omnidirectional lens,
In the omnidirectional lens,
A first omnidirectional region for receiving light reflected in the mouth; And
And a second omni-directional area for receiving the reflected light from the mirror part. 16. The method of claim 15,
The photographing unit
And sequentially or sequentially or selectively detecting light received in the first omnidirectional region and the second omnidirectional region,
3D Oral Scanner using omnidirectional optical system. The method according to claim 1,
Wherein the photographing unit acquires an image corresponding to the irradiation position of the light source and calculates the depth of the image from the obtained image to generate an intraoral model
3D Oral Scanner using omnidirectional optical system. The method according to claim 1,
Wherein the photographing section photographs a continuous image corresponding to the flow of the omnidirectional optical system,
And the depth of the image is measured based on the feature points from the continuous image
3D Oral Scanner using omnidirectional optical system. A 3D mouth scanner using the omnidirectional optical system of claim 1;
A data converter for converting the digital data received from the 3D mouth scanner using the omnidirectional optical system into three-dimensional data to generate production data and converting the data into a milling strip; And
And a milling device for generating an artificial tooth based on the milling strip received from the data conversion device
Artificial tooth processing equipment.

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