CN109717839A - A kind of imaging device of hard tooth tissue disease non-destructive testing - Google Patents
A kind of imaging device of hard tooth tissue disease non-destructive testing Download PDFInfo
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- CN109717839A CN109717839A CN201910043806.1A CN201910043806A CN109717839A CN 109717839 A CN109717839 A CN 109717839A CN 201910043806 A CN201910043806 A CN 201910043806A CN 109717839 A CN109717839 A CN 109717839A
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- liquid crystal
- optical
- computer
- light source
- imaging device
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Abstract
The present invention discloses a kind of imaging device of hard tooth tissue disease non-destructive testing.Liquid crystal optics modulator is projected to after the collimated adjustment mirror collimation of the light issued by near-infrared light source, the luminous intensity of liquid crystal optics modulator is adjusted in the image information that computer is obtained according to optical imagery detection system, and the light after adjusting projects the two sides of tooth to be measured through optical fiber collimator；Optical imagery detection system obtains the Pathological Information of tooth two sides to be measured and Pathological Information is uploaded to computer, and computer shows Pathological Information.The injury of radiation can be reduced using the device of the invention and improve the clarity of imaging, improve the prevention and treatment effect of odontopathy.
Description
Technical field
The present invention relates to the field of medical instrument technology, more particularly to a kind of imaging of hard tooth tissue disease non-destructive testing
Device.
Background technique
In talent, medical worker often carries out the detection of dental hard tissue's lesion by X-ray radiography technology
And diagnositc decision, however, x-ray bombardment living tissue, biological cell is more easily damaged, is even dead, to prevent from suffering from odontopathy
The dosage of the secondary injury of person, X-ray must control within the scope of certain restriction, and number of taking pictures is limited.In addition X-ray apparatus
Also there is safeguard, prevent doctor's long-term irradiation from coming to harm, and X-ray radiography is in early stage caries context of detection, and can not
It leans on.
Near infrared light readily penetrates through enamel, and radiationless harm can carry out daily nondestructive inspection (NDI) (such as incipient dental caries of odontopathy
Tooth, root canal system etc.).It is influenced by tooth calcification degree, thickness and near infrared imaging factor, traditional transillumination direct imaging method obtains
The near infrared light image taken is easily saturated, and contrast is low, and image quality decline is serious, is unfavorable for the identification of tooth pathology areas.
Summary of the invention
The object of the present invention is to provide a kind of imaging devices of hard tooth tissue disease non-destructive testing, can reduce radiation
Injury and the clarity for improving imaging, improve the prevention and treatment effect of odontopathy.
To achieve the above object, the present invention provides following schemes:
A kind of imaging device of hard tooth tissue disease non-destructive testing, comprising: near-infrared light source system, optical imagery detection
System and computer；The quantity of the near-infrared light source system is two, and each near-infrared light source symmetry system having symmetry is distributed in
The two sides of tooth to be measured, the near-infrared light source system include near-infrared light source, collimation adjustment mirror, liquid crystal optics modulator and light
Fine collimator；The near-infrared light source, collimation adjustment mirror, the liquid crystal optics modulator and the optical fiber collimator are successively
Arrangement；The liquid crystal optics modulator is connect with the computer, and the computer is connect with the optical imagery detection system；
The light that the near-infrared light source issues is projected to the liquid crystal optics modulator after collimation adjustment mirror collimation,
Luminous intensity of the image information that the computer is obtained according to the optical imagery detection system to the liquid crystal optics modulator
It is adjusted, the light after adjusting projects the two sides of tooth to be measured through the optical fiber collimator；The optical imagery detection system
It obtains the Pathological Information of the tooth two sides to be measured and the Pathological Information is uploaded to the computer, the computer is by institute
Pathological Information is stated to be shown.
Optionally, the near-infrared light source uses near-infrared laser or diode of the wavelength between 780nm-1350nm
Near-infrared light source.
Optionally, the optical fiber collimator is a branch of capillary array.
Optionally, the capillary array is by more hollow glass fibres hexagonal tightly packed group on cross section
At.
Optionally, the liquid crystal optics modulator is transmission liquid crystal optical modulator.
Optionally, the optical image probe is that Near Infrared CCD camera or near-infrared CMOS camera or InGaAs are closely red
Outer camera.
Optionally, the optical imagery detection system includes optical image probe and optical image probe camera lens, institute
The surface that optical image probe camera lens is located at tooth to be measured is stated, the optical image probe is located at the optical imagery
The surface of detector camera lens, the computer are connect with the optical image probe.
Optionally, the surface of the liquid crystal optics modulator include microchannel switch, the computer by open or
Microchannel switch is closed to adjust luminous intensity.
The specific embodiment provided according to the present invention, the invention discloses following technical effects: the present invention provides a kind of tooth
The imaging device of tooth sclerous tissues disease non-destructive testing may be implemented the modulation of Pixel-level light field, improve the dynamic model of near infrared imaging
Enclose and contrast, effectively substitution X-ray detection, have structure it is simple and novel, without reflection light absorption device, it is small in size, without spoke
It penetrates, be imaged apparent, no number limitation of taking pictures, safe and reliable feature, detection and treatment to early stage odontopathy have product
The meaning of pole.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without any creative labor, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is that the imaging device of hard tooth tissue of embodiment of the present invention disease non-destructive testing forms figure.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The object of the present invention is to provide a kind of imaging devices of hard tooth tissue disease non-destructive testing, can reduce radiation
Injury and the clarity for improving imaging, improve the prevention and treatment effect of odontopathy.
In order to make the foregoing objectives, features and advantages of the present invention clearer and more comprehensible, with reference to the accompanying drawing and specific real
Applying mode, the present invention is described in further detail.
Fig. 1 is that the imaging device of hard tooth tissue of embodiment of the present invention disease non-destructive testing forms figure.A kind of hard group of tooth
Knit the imaging device of disease non-destructive testing, comprising: near-infrared light source system, optical imagery detection system and computer；It is described close
The quantity of infrared light supply system is two, and the two sides for being distributed in tooth 5 to be measured of each near-infrared light source symmetry system having symmetry are described
Near-infrared light source system includes near-infrared light source 1, collimation adjustment mirror 2, liquid crystal optics modulator 3 and optical fiber collimator 4；It is described close
Infrared light supply 1, collimation adjustment mirror 2, the liquid crystal optics modulator 3 and the optical fiber collimator 4 are arranged successively；The liquid
Brilliant optical modulator 3 is connect with the computer 8, and the computer 8 is connect with the optical imagery detection system；
The light that the near-infrared light source 1 issues is projected to the liquid crystal optics modulation after collimation adjustment mirror 2 collimates
Device 3, the image information that the computer 8 is obtained according to the optical imagery detection system is to the liquid crystal optics modulator 3
Luminous intensity is adjusted, and the light after adjusting projects the two sides of tooth 5 to be measured through the optical fiber collimator 4；The optical imagery
Detection system obtains the Pathological Information of the tooth two sides to be measured and the Pathological Information is uploaded to the computer 8, described
Computer 8 shows the Pathological Information.
The optical imagery detection system includes optical image probe 7 and optical image probe camera lens 6, the optics
Image detector camera lens 6 is located at the surface of tooth 5 to be measured, and the optical imagery that is located at of the optical image probe 7 is visited
The surface of device camera lens 6 is surveyed, the computer 8 is connect with the optical image probe 7.
Near-infrared laser or diode near-infrared of the near-infrared light source 1 using wavelength between 780nm-1350nm
Light source.
The optical fiber collimator 4 is a kind of hexagonal most close on cross section by thousands of hollow glass fibres
Light is collimated parallel optical transport by a branch of capillary array made of accumulation.
The liquid crystal optics modulator 3 is transmission liquid crystal optical modulator.It wraps on the surface of the liquid crystal optics modulator 3
It is switched containing microchannel, the computer 8 adjusts luminous intensity by opening or closing microchannel switch.When liquid crystal optics is modulated
When the microchannel on 3 surface of device is in "On" state, which enters corresponding 4 channel of optical fiber collimator, warp
Optical fiber collimator 4 transmits, and modulated near infrared light projects one side of tooth to be measured, and other side same optical path is by near-infrared
Light projection is to another side of tooth 5 to be measured, and the dental imaging after the irradiation of two-way light source is on optical image probe 7；
On the contrary, the channel near infrared light flux weakens or disappears when the microchannel on 3 surface of liquid crystal optics modulator is in "Off" state
It loses.The liquid crystal optics modulator 3 is a kind of separate unit containing there are many, is spatially arranged in two-dimensional array, each unit
Can independently received optical signalling or electrical signal control, pass through liquid crystal molecule and modulate the ginseng such as intensity, phase of light field
The characteristics of amount, transmission liquid crystal optical modulator are not necessarily to the absorption plant of reflected light, and specific design volume is small, flexible design.
The optical image probe 7 is Near Infrared CCD camera or near-infrared CMOS camera or InGaAs near infrared camera.
The computer 8 acquires on optical image probe for control and the associated image information of tooth, Yi Jigen
Remove to adjust the switch of the microchannel of corresponding liquid crystal optics modulator surface corresponding position according to the image that optical image probe obtains
State and switch time achieve the purpose that adjustment projects dental surface regional area light intensity, to show to corresponding
The intensity control of image sensor pixel point different levels improves the dynamic range and contrast of tooth relevance imaging.
Near infrared imaging using the high dynamic range of hard tooth tissue lesion non-destructive testing passes through by liquid crystal optics tune
The light intensity modulation method of device processed, while two-way near infrared light tooth to be measured is used, it generates associated with Its pulp
Modulated flux obtains dental imaging by near-infrared optical image detector.
In actual use, it cleans first, wipe optical mirror slip component, according to Fig. 1 optical path adjustment.Generally, wavelength is situated between
The collimated adjustment mirror 2 of light that the near-infrared light sources such as near-infrared laser or diode between 780nm-1350nm issue is adjusted to
Directional light projects 3 surface of liquid crystal optics modulator, and the contrast and saturation feelings of image are obtained according to optical image probe 7
Condition opens or closes 3 surface microchannel of transmission liquid crystal optical modulator switch by the control of computer system 8, adjusts luminous intensity
Situation of change, the luminous flux through ovennodulation project 5 two sides of tooth to be measured by optical fiber collimator 4, are loaded with tooth Pathological Information
Light beam pass through optical image probe camera lens 6, converge to optical image probe 7, optical image probe 7 is by digital picture
Signal exports computer 8, is shown dental information by computer 8.
A kind of imaging device for hard tooth tissue lesion non-destructive testing of the invention can replace X-ray tooth in the market
Piece machine, can unlimited irradiation number, that shortens patient sees disease cycle, avoid the irradiation at patient and doctor face and other positions endanger
Evil, transmission liquid crystal optical modulator compare general digital micro-mirror DMD, reflection-absorption device are omitted, reduces equipment
Volume.
In view of based on the principle of the invention, there are many kinds of embodiments, embodiment described herein is only preferred embodiment,
And it should not be taken as the limitation of technical scope.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Used herein a specific example illustrates the principle and implementation of the invention, and above embodiments are said
It is bright to be merely used to help understand the device of the invention and its core concept；At the same time, for those skilled in the art, foundation
Thought of the invention, there will be changes in the specific implementation manner and application range.In conclusion the content of the present specification is not
It is interpreted as limitation of the present invention.
Claims (8)
1. a kind of imaging device of hard tooth tissue disease non-destructive testing characterized by comprising near-infrared light source system, light
Learn image detection system and computer；The quantity of the near-infrared light source system is two, each near-infrared light source system pair
The two sides for being distributed in tooth to be measured claimed, the near-infrared light source system include near-infrared light source, collimation adjustment mirror, liquid crystal optics
Modulator and optical fiber collimator；The near-infrared light source, collimation adjustment mirror, the liquid crystal optics modulator and the optical fiber
Collimator is arranged successively；The liquid crystal optics modulator is connect with the computer, and the computer and the optical imagery are visited
Examining system connection；
The light that the near-infrared light source issues is projected to the liquid crystal optics modulator after collimation adjustment mirror collimation, described
The image information that computer is obtained according to the optical imagery detection system carries out the luminous intensity of the liquid crystal optics modulator
It adjusts, the light after adjusting projects the two sides of tooth to be measured through the optical fiber collimator；The optical imagery detection system obtains
The Pathological Information is simultaneously uploaded to the computer by the Pathological Information of the tooth two sides to be measured, and the computer is by the disease
Become information to be shown.
2. the imaging device of hard tooth tissue disease non-destructive testing according to claim 1, which is characterized in that described close red
Outer light source uses near-infrared laser or diode near-infrared light source of the wavelength between 780nm-1350nm.
3. the imaging device of hard tooth tissue disease non-destructive testing according to claim 1, which is characterized in that the optical fiber
Collimator is a branch of capillary array.
4. the imaging device of hard tooth tissue disease non-destructive testing according to claim 3, which is characterized in that the capillary
Pipe array tightly packed is formed by more hollow glass fibres are hexagonal on cross section.
5. the imaging device of hard tooth tissue disease non-destructive testing according to claim 1, which is characterized in that the liquid crystal
Optical modulator is transmission liquid crystal optical modulator.
6. the imaging device of hard tooth tissue disease non-destructive testing according to claim 1, which is characterized in that the optics
Image detector is Near Infrared CCD camera or near-infrared CMOS camera or InGaAs near infrared camera.
7. the imaging device of hard tooth tissue disease non-destructive testing according to claim 1, which is characterized in that the optics
Image detection system includes optical image probe and optical image probe camera lens, and the optical image probe camera lens is located at
The surface of tooth to be measured, the surface positioned at the optical image probe camera lens of the optical image probe are described
Computer is connect with the optical image probe.
8. the imaging device of hard tooth tissue disease non-destructive testing according to claim 1, which is characterized in that the liquid crystal
The surface of optical modulator includes microchannel switch, and the computer adjusts light intensity by opening or closing microchannel switch
Degree.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043806.1A CN109717839A (en) | 2019-01-17 | 2019-01-17 | A kind of imaging device of hard tooth tissue disease non-destructive testing |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043806.1A CN109717839A (en) | 2019-01-17 | 2019-01-17 | A kind of imaging device of hard tooth tissue disease non-destructive testing |
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| CN109717839A true CN109717839A (en) | 2019-05-07 |
Family
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| CN201910043806.1A Pending CN109717839A (en) | 2019-01-17 | 2019-01-17 | A kind of imaging device of hard tooth tissue disease non-destructive testing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966421A (en) * | 2017-11-23 | 2018-04-27 | 北京古三智能科技有限公司 | A kind of dental hard tissue's imaging method realized using 780 nm near infrared diodes laser |
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| US6135774A (en) * | 1997-04-03 | 2000-10-24 | Kaltenbach & Voigt Gmbh & Co. | Diagnosis and treatment device for teeth |
| CN101365397A (en) * | 2005-12-08 | 2009-02-11 | 彼得·S·乐芙莉 | Infrared dental imaging |
| CN104780822A (en) * | 2012-07-19 | 2015-07-15 | 独立行政法人国立长寿医疗研究中心 | Measurement/display method and measurement/display device for dental plaque, gum and alveolar bone |
| CN105637320A (en) * | 2013-08-19 | 2016-06-01 | 巴斯夫欧洲公司 | Optical detector |
| CN105832290A (en) * | 2015-01-30 | 2016-08-10 | 登塔尔图像科技公司 | Intra-oral image acquisition alignment |
| CN107550466A (en) * | 2017-10-20 | 2018-01-09 | 东北师范大学 | A kind of imaging method and system of odontopathy detection |
| CN107752986A (en) * | 2017-11-23 | 2018-03-06 | 北京古三智能科技有限公司 | A kind of dental hard tissue's fast imaging method |
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2019
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Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6135774A (en) * | 1997-04-03 | 2000-10-24 | Kaltenbach & Voigt Gmbh & Co. | Diagnosis and treatment device for teeth |
| CN101365397A (en) * | 2005-12-08 | 2009-02-11 | 彼得·S·乐芙莉 | Infrared dental imaging |
| CN104780822A (en) * | 2012-07-19 | 2015-07-15 | 独立行政法人国立长寿医疗研究中心 | Measurement/display method and measurement/display device for dental plaque, gum and alveolar bone |
| CN105637320A (en) * | 2013-08-19 | 2016-06-01 | 巴斯夫欧洲公司 | Optical detector |
| CN105832290A (en) * | 2015-01-30 | 2016-08-10 | 登塔尔图像科技公司 | Intra-oral image acquisition alignment |
| CN107550466A (en) * | 2017-10-20 | 2018-01-09 | 东北师范大学 | A kind of imaging method and system of odontopathy detection |
| CN107752986A (en) * | 2017-11-23 | 2018-03-06 | 北京古三智能科技有限公司 | A kind of dental hard tissue's fast imaging method |
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| CN107966421A (en) * | 2017-11-23 | 2018-04-27 | 北京古三智能科技有限公司 | A kind of dental hard tissue's imaging method realized using 780 nm near infrared diodes laser |
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Application publication date: 20190507 |