CN109686640A - A kind of plate multiplication image amplifier and multiplication method - Google Patents
A kind of plate multiplication image amplifier and multiplication method Download PDFInfo
- Publication number
- CN109686640A CN109686640A CN201910108347.0A CN201910108347A CN109686640A CN 109686640 A CN109686640 A CN 109686640A CN 201910108347 A CN201910108347 A CN 201910108347A CN 109686640 A CN109686640 A CN 109686640A
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- layer
- image
- outer housing
- output window
- fluorescence
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- 238000000034 method Methods 0.000 title claims description 12
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 238000000576 coating method Methods 0.000 claims abstract description 26
- 239000004020 conductor Substances 0.000 claims abstract description 22
- 239000000463 material Substances 0.000 claims description 16
- 239000011521 glass Substances 0.000 claims description 9
- 230000001133 acceleration Effects 0.000 claims description 4
- 230000005684 electric field Effects 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000009738 saturating Methods 0.000 claims description 2
- 239000012780 transparent material Substances 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- XQPRBTXUXXVTKB-UHFFFAOYSA-M caesium iodide Chemical compound [I-].[Cs+] XQPRBTXUXXVTKB-UHFFFAOYSA-M 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 230000005685 electric field effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- UQMZPFKLYHOJDL-UHFFFAOYSA-N zinc;cadmium(2+);disulfide Chemical compound [S-2].[S-2].[Zn+2].[Cd+2] UQMZPFKLYHOJDL-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/50—Image-conversion or image-amplification tubes, i.e. having optical, X-ray, or analogous input, and optical output
Landscapes
- Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)
Abstract
A kind of plate doubles image amplifier, including cylindrical shell body, one end of outer housing are sealed and installed with front cover, and input window is offered on front cover, and the other end of outer housing is sealed and installed with rear cover, after cover and offer output window;Vacuum chamber is provided in outer housing, from input window to being disposed with several layer image dynode layers in the vacuum chamber of output window side, every layer image dynode layer includes the fluorescence coating set gradually, photocathode layer and insulated conductor layer, insulated conductor layer includes several vertically conducting wires with the setting of photocathode layer, is provided with insulating layer between conducting wire;From input window to several electrodes with the cooperation of insulated conductor layer are disposed with outside the outer housing of output window side, electrode protrudes into outer housing and is connected with corresponding fluorescence coating.The booster good airproof performance, leakage that is safe and reliable, effectivelying prevent X-ray, and geometry multiplication can be carried out by imaging effect of the image dynode layer to X-ray, realize that a small amount of X-rays form high intensity visible image.
Description
Technical field
The present invention relates to a kind of x ray image intensifier, especially a kind of plate multiplication image amplifier is specifically further related to
The multiplication method of plate multiplication image amplifier.
Background technique
X-ray is electromagnetic wave of the wavelength between ultraviolet light and gamma-rays.
X-ray is widely used in the fields such as medical imaging diagnosis and industrial flaw detection, the image in x-ray detection system at present
Booster is essential component, first passes through image amplifier and receives and reinforce image, then passes through camera for image amplifier
On image information extraction transfer to computer disposal.
Although X-ray can penetrate it is many opaque substance of visible light is imaged, X-ray itself has human body
It is harmful, thus should guarantee to realize in practical application image clearly it is visible, can stored digital, reduce X-ray as far as possible again
Amount, thus the requirement to image amplifier is higher and higher, is badly in need of can be realized a small amount of X-rays and carries out the images of blur-free imagings and increases
Strong device.
Summary of the invention
The technical problem to be solved by the present invention is in view of the deficiencies of the prior art, provide it is a kind of design rationally, leakproofness
Plate multiplication image amplifier that is good, can be realized a small amount of X-rays progress blur-free imagings.
Another technical problem to be solved by this invention is to provide a kind of using plate multiplication image amplifier progress X
The method of ray image multiplication.
The technical problem to be solved by the present invention is to what is realized by technical solution below.The present invention is a kind of plate
Double image amplifier, which includes cylindrical shell body, and one end of outer housing is sealed and installed with front cover, opens up on front cover
Have input window, the other end of outer housing is sealed and installed with rear cover, after cover and offer output window;Vacuum chamber is provided in outer housing
Room, from input window to several layer image dynode layers are disposed in the vacuum chamber of output window side, every layer image dynode layer is equal
Including the fluorescence coating, photocathode layer and insulated conductor layer set gradually, insulated conductor layer includes several vertically negative with photoelectricity
The conducting wire of pole layer setting, is provided with insulating layer between conducting wire;If from input window to being disposed with outside the outer housing of output window side
The dry electrode with the cooperation of insulated conductor layer, electrode protrude into outer housing and are connected with corresponding fluorescence coating.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
The plate multiplication image amplifier, is additionally provided with defeated between the output window and the insulated conductor layer nearest apart from output window
Layer out, output layer include plate cutout screen made of the fluorescence output layer set gradually and use plate transparent glass.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
The plate doubles image amplifier, and the length of the conducting wire of the insulated conductor layer nearest apart from output window is from middle part to four
It is sequentially increased the arc-shaped to form middle part indent week, the middle part correspondence of output window is recessed arc-shaped.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
The plate multiplication image amplifier, the side of the indoor output window of vacuum chamber is additionally provided with using plate transparent glass
Manufactured arc cutout screen.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
The plate doubles image amplifier, and the image dynode layer setting haves three layers or 4 layers, 3 layers or 4 layers of image dynode layer etc.
Spacing is arranged in parallel.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
The plate doubles image amplifier, it is described from input window to the voltage of the electrode applied outside the outer housing of output window side successively
Increase.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
The plate multiplication image amplifier, the input window are made of the material low to X-ray absorption rate, and output window is using saturating
Bright material is made, and outer housing is made of insulation light-proof material.
The technical problems to be solved by the invention can also be further realized by technical solution below, for above
The plate multiplication image amplifier, a kind of method of X ray image multiplication, its step are as follows, first passes through fluorescence coating and penetrates X
Line is converted into fluorescence, and the photon irradiation photocathode layer of fluorescence generates electronics, and electronics accelerates under the electric field action that electrode applies,
It is moved along conducting wire acceleration, next layer of fluorescence coating is hit, generates stronger fluorescence, then irradiate the photocathode layer of this layer, produced
Raw more electronics, and continue lower layer of fluorescence coating of accelerating impact and and so on obtain more electronics, eventually form
High intensity visible image.
Compared with prior art, several layer image dynode layers are arranged in the present invention in vacuum chamber, the X entered from input window
Ray first passes through the fluorescence coating of the first layer image dynode layer, is converted into fluorescence, to the photocathode of the first layer image dynode layer into
Row irradiation, excites electronics, and under the high voltage electric field effect that outer housing external electrode applies, the electronics of excitation doubles along the first layer image
One end of the conducting wire of layer accelerates to shift to the other end of conducting wire, and continues move towards fluorescence coating one end of next layer image dynode layer, should
Layer fluorescence coating generates the bigger fluorescence of brightness, and then the electronics for exciting this layer of photocathode layer because electronic impact speed increases
More, by the multiplication of several layer image dynode layers, electron amount increases significantly, convenient for forming high intensity visible figure
Picture, for record, take pictures and image store;Secondly, the insulated conductor layer of the last layer can also be made it is arc-shaped, with formed contracting
Small high intensity visible image, convenient for preferably for record, take pictures and image store.The booster good airproof performance, it is safe and reliable,
It is effectively prevent the leakage of X-ray, and geometry multiplication can be carried out by imaging effect of the image dynode layer to X-ray, is realized
A small amount of X-rays form high intensity visible image.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of the invention;
Fig. 2 is another structural schematic diagram of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, right below in conjunction with attached drawing of the present invention
Technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is a part of the invention
Embodiment, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making wound
Every other embodiment obtained under the premise of the property made labour, shall fall within the protection scope of the present invention.
Referring to Fig.1, a kind of plate doubles image amplifier, which includes cylindrical shell body 1, and the one of outer housing 1
End is sealed and installed with front cover 2, offers input window on front cover 2, and the other end of outer housing 1 is sealed and installed with rear cover 3, on rear cover 3
Offer output window;It is provided with vacuum chamber in outer housing 1, from input window to being disposed in the vacuum chamber of output window side
Several layer image dynode layers, every layer image dynode layer include the fluorescence coating 5, photocathode layer 6 and insulated conductor 8 set gradually
Layer 7,8 layer 7 of insulated conductor includes several conducting wires 8 being vertically arranged with photocathode layer 6, is provided with insulating layer between conducting wire 8;
Several electrodes 4 with 8 layer 7 of insulated conductor cooperation are disposed with outside from input window to the outer housing 1 of output window side, electrode 4 is stretched
Enter outer housing 1 to be connected with corresponding fluorescence coating 5.Insulating materials, such as plastics, ceramics are set at insulating layer, for dividing conducting wire 8
It separates;The inside recessed formation arc-shaped of input window and output window middle part;It is provided with fluorescent material at fluorescence coating 5, the phosphor
Material both can generate fluorescence in x-ray bombardment, can also generate fluorescence in electron irradiation;Such as use cesium iodide material;Or
The fluorescent material of first layer fluorescence coating 5 is the material that x-ray bombardment can be made to generate visible light, and subsequent fluorescence coating 5 is using can be
The material that visible light is generated when electron irradiation, if first layer uses cesium iodide material, subsequent fluorescence coating 5 uses zinc-cadmium sulfide material
Material;Photocathode layer 6 is provided with photocathode;After X-ray is entered in outer housing 1 by input window, first double in the first layer image
The fluorescence coating 5 of layer generates fluorescence, and fluorescence is irradiated to photocathode layer 6, and excitation generates electronics, what the electronics of generation applied in outside
From one end of conducting wire 8, the other end of conducting wire 8 is shifted in acceleration under voltage, and is continued to next layer image dynode layer high-speed mobile, speed
It spends increased electronics to hit the fluorescence coating 5 of next layer image dynode layer, generates stronger light, produce this layer of photocathode excitation
Raw greater number of electronics, speed enhances again under this layer of corresponding voltage effect, after several layer image dynode layers, electricity
Subnumber measures geometry multiplication, strikes convenient for final high-speed motion and fluorescence coating 5 are arranged at output window, and it is visible to form high brightness
Light image, for record, take pictures and image store.
It is additionally provided with output layer between the output window and 8 layer 7 of insulated conductor nearest apart from output window, output layer includes
Plate cutout screen 10 made of the fluorescence output layer 9 and use plate transparent glass set gradually.Fluorescence output layer 9 uses fluorescence
Substance is made, and such as fluorescein isothiocynate, fluorescence output layer 9 is arranged in parallel with cutout screen, and cutout screen is positioned close to output window
Side, convenient for high-speed motion electronic impact to fluorescence output layer 9, then through cutout screen formation high intensity visible image;This
Locate cutout screen convenient for light transmission and carrying fluorescence output layer 9, convenient for the setting of fluorescence output layer 9.
Referring to Fig. 2, the length of insulated conductor 8 layer 7 of the conducting wire 8 nearest apart from output window from middle part to surrounding successively
Increase the arc-shaped for forming middle part indent, the middle part correspondence of output window is recessed arc-shaped, 8 layer 7 of insulated conductor leads at this
8 distal end of line is made arc-shaped, and the circular arc of output window is identical as the center of circle of circle where 8 layer 7 of insulated conductor of circular arc, flat convenient for being formed
Row setting enables final high-speed motion electronics preferably to concentrate convergence together, is formed and reduce high intensity visible image, supplies
Record, take pictures and image storage.
The side of the indoor output window of vacuum chamber is additionally provided with using arc cutout screen made of plate transparent glass
11, arc cutout screen 11 herein plays light transmission, sealing process, both passes through convenient for final high-speed motion electronic impact, subsequent
Visible images are formed on the receiving screen of outside setting, are also functioned to 1 sealing process of outer housing;When arc cutout screen 11 is set,
It can be not provided with output window, substitute rear cover 3 using arc cutout screen 11.
Image dynode layer setting haves three layers or 4 layers, 3 layers or 4 layer image dynode layers are equidistantly arranged in parallel, every layer of shadow
As the spacing between dynode layer be 3m-200mm, preferably spacing be 50mm.
The voltage of the electrode 4 applied outside from input window to the outer housing 1 of output window side is sequentially increased, from input window to
The voltage of the electrode 4 applied outside the outer housing 1 of output window side is followed successively by 0V to thousands of volts, tens of kilovolts, frequently with voltage be
0-30kV, the voltage of electrode 4 corresponding with 8 layer 7 of insulated conductor is 0V such as at the first of input window side, and voltage is at second
8kV, voltage is 16kV at second, so incremented by successively.
The input window is made of the material low to X-ray absorption rate, and output window is made of transparent material, outer housing
1 is made of insulation light-proof material.Input window is made of glass or aluminium sheet, is projected convenient for X-ray;Cutout screen uses glass
It is made, the electronics being converted into exports outward;Outer housing 1 is made of glass or quartz, is insulated opaque.
A kind of method of X ray image multiplication, step is the X-ray of irradiation to be first converted into visible light, then pass through acquisition
Visible light obtain electronics, then electronics is accelerated, and generate stronger visible light using the electronics after accelerating, then pass through
The visible light of acquisition obtains more electronics, and so on, obtains more electronics, eventually forms high intensity visible figure
Picture realizes the multiplication of X ray image;
Specific implementation process is to first pass through fluorescence coating X-ray is converted into fluorescence, and the photon irradiation photocathode layer of fluorescence generates
Electronics, electronics accelerate under the electric field action that electrode applies, and move along conducting wire acceleration, hit to next layer of fluorescence coating, generate
Stronger fluorescence, then the photocathode layer of this layer is irradiated, more electronics are generated, and continue lower layer of fluorescence coating of accelerating impact,
And so on, more electronics is obtained, high intensity visible image is eventually formed.
Claims (8)
- The image amplifier 1. a kind of plate doubles, it is characterised in that: the booster includes cylindrical shell body, one end of outer housing Be sealed and installed with front cover, input window offered on front cover, the other end of outer housing is sealed and installed with rear cover, after cover offer it is defeated Exit window;Vacuum chamber is provided in outer housing, from input window to being disposed with several layers shadow in the vacuum chamber of output window side As dynode layer, every layer image dynode layer includes the fluorescence coating set gradually, photocathode layer and insulated conductor layer, insulated conductor Layer includes several vertically conducting wires with the setting of photocathode layer, is provided with insulating layer between conducting wire;From input window to output window Several electrodes with the cooperation of insulated conductor layer are disposed with outside the outer housing of side, electrode protrudes into outer housing and corresponding fluorescence coating Conducting.
- The image amplifier 2. plate according to claim 1 doubles, it is characterised in that: the output window with apart from output window Output layer is additionally provided between nearest insulated conductor layer, output layer includes the fluorescence output layer set gradually and uses plate saturating Plate cutout screen made of light glass.
- The image amplifier 3. plate according to claim 1 doubles, it is characterised in that: described apart from nearest exhausted of output window The length of the conducting wire of edge conductor layer is sequentially increased the arc-shaped to form middle part indent from middle part to surrounding, and the middle part of output window is corresponding It is recessed arc-shaped.
- The image amplifier 4. plate according to claim 3 doubles, it is characterised in that: the indoor output window of vacuum chamber Side be additionally provided with using arc cutout screen made of plate transparent glass.
- The image amplifier 5. plate according to claim 1 doubles, it is characterised in that: the image dynode layer is provided with 3 Layer or 4 layers, 3 layers or 4 layers of image dynode layer are equidistantly arranged in parallel.
- The image amplifier 6. plate according to claim 1 doubles, it is characterised in that: described from input window to output window side Outer housing outside the voltage of electrode that applies be sequentially increased.
- The image amplifier 7. plate according to claim 1 doubles, it is characterised in that: the input window is used to X-ray The low material of absorptivity is made, and output window is made of transparent material, and outer housing is made of insulation light-proof material.
- 8. a kind of method of X ray image multiplication, it is characterised in that: this method uses described in claim 1-7 any one Plate multiplication image amplifier, its step are as follows, first passes through fluorescence coating for X-ray and is converted into fluorescence, the photon irradiation light of fluorescence Electric cathode layer generates electronics, and electronics accelerates under the electric field action that electrode applies, and moves along conducting wire acceleration, to next layer of fluorescence Layer is hit, and is generated stronger fluorescence, then irradiate the photocathode layer of this layer, is generated more electronics, and continue under accelerating impact One layer of fluorescence coating and so on obtains more electronics, eventually forms high intensity visible image.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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CN201910108347.0A CN109686640B (en) | 2019-01-18 | 2019-01-18 | Flat multiplication image enhancer and multiplication method |
PCT/CN2020/071037 WO2020147631A1 (en) | 2019-01-18 | 2020-01-09 | Flat plate image multiplication intensifier and multiplication method |
JP2020600216U JP3230669U (en) | 2019-01-18 | 2020-01-09 | Image enhancer |
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CN201910108347.0A CN109686640B (en) | 2019-01-18 | 2019-01-18 | Flat multiplication image enhancer and multiplication method |
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CN109686640A true CN109686640A (en) | 2019-04-26 |
CN109686640B CN109686640B (en) | 2024-05-28 |
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JP (1) | JP3230669U (en) |
CN (1) | CN109686640B (en) |
WO (1) | WO2020147631A1 (en) |
Cited By (1)
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WO2020147631A1 (en) * | 2019-01-18 | 2020-07-23 | 茆占湖 | Flat plate image multiplication intensifier and multiplication method |
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CN108807549B (en) | 2018-06-01 | 2021-03-23 | 京东方科技集团股份有限公司 | Thin film transistor and manufacturing method thereof, array substrate and manufacturing method thereof |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4362933A (en) * | 1980-02-06 | 1982-12-07 | Siemens Aktiengesellschaft | Multistage vacuum x-ray image intensifier |
CN1056792A (en) * | 1990-05-18 | 1991-12-04 | 机械电子工业部第二○五研究所 | Portable x-ray fluoroscopy record instrument |
JP2000195451A (en) * | 1998-12-25 | 2000-07-14 | Toshiba Corp | X-ray image detector |
JP2001155668A (en) * | 1999-11-30 | 2001-06-08 | Toshiba Corp | X-ray image detector |
CN209249426U (en) * | 2019-01-18 | 2019-08-13 | 茆占湖 | A kind of plate multiplication image amplifier |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001035426A (en) * | 1999-07-16 | 2001-02-09 | Toshiba Corp | X-ray image intensifier |
CN109686640B (en) * | 2019-01-18 | 2024-05-28 | 茆占湖 | Flat multiplication image enhancer and multiplication method |
-
2019
- 2019-01-18 CN CN201910108347.0A patent/CN109686640B/en active Active
-
2020
- 2020-01-09 JP JP2020600216U patent/JP3230669U/en active Active
- 2020-01-09 WO PCT/CN2020/071037 patent/WO2020147631A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4362933A (en) * | 1980-02-06 | 1982-12-07 | Siemens Aktiengesellschaft | Multistage vacuum x-ray image intensifier |
CN1056792A (en) * | 1990-05-18 | 1991-12-04 | 机械电子工业部第二○五研究所 | Portable x-ray fluoroscopy record instrument |
JP2000195451A (en) * | 1998-12-25 | 2000-07-14 | Toshiba Corp | X-ray image detector |
JP2001155668A (en) * | 1999-11-30 | 2001-06-08 | Toshiba Corp | X-ray image detector |
CN209249426U (en) * | 2019-01-18 | 2019-08-13 | 茆占湖 | A kind of plate multiplication image amplifier |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020147631A1 (en) * | 2019-01-18 | 2020-07-23 | 茆占湖 | Flat plate image multiplication intensifier and multiplication method |
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Publication number | Publication date |
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CN109686640B (en) | 2024-05-28 |
WO2020147631A1 (en) | 2020-07-23 |
JP3230669U (en) | 2021-02-12 |
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