WO2019233070A1 - 粒子投射空间成像系统 - Google Patents
粒子投射空间成像系统 Download PDFInfo
- Publication number
- WO2019233070A1 WO2019233070A1 PCT/CN2018/119809 CN2018119809W WO2019233070A1 WO 2019233070 A1 WO2019233070 A1 WO 2019233070A1 CN 2018119809 W CN2018119809 W CN 2018119809W WO 2019233070 A1 WO2019233070 A1 WO 2019233070A1
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- WO
- WIPO (PCT)
- Prior art keywords
- particle
- imaging system
- projection space
- space imaging
- coil group
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/388—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume
- H04N13/39—Volumetric displays, i.e. systems where the image is built up from picture elements distributed through a volume the picture elements emitting light at places where a pair of light beams intersect in a transparent material
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/50—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels
- G02B30/56—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images the image being built up from image elements distributed over a 3D volume, e.g. voxels by projecting aerial or floating images
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H13/00—Magnetic resonance accelerators; Cyclotrons
- H05H13/005—Cyclotrons
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
- H05H7/00—Details of devices of the types covered by groups H05H9/00, H05H11/00, H05H13/00
- H05H7/04—Magnet systems, e.g. undulators, wigglers; Energisation thereof
- H05H2007/046—Magnet systems, e.g. undulators, wigglers; Energisation thereof for beam deflection
Definitions
- the present application belongs to the field of projection imaging technology, and more particularly, relates to a particle projection space imaging system.
- Spectral stereoscopic display means that the retina receives two parallax images.
- a person can "see" three-dimensional objects by distinguishing the light, darkness, front, back, and distance of different areas of the object.
- polarizing lenses such as 3D stereo glasses, 3D Stereo movies, etc.
- Volume 3D display uses technologies such as high-speed movement of optical devices and high-frequency light projection to synthesize multiple 2D images in a certain transparent solid to create a 3D stereoscopic image that is full of real three-dimensionality, such as a volume 3D display.
- Both the spectroscopic three-dimensional display and the volume three-dimensional display depend on the solid medium for three-dimensional display.
- the three-dimensional hologram shows that two light beams interfere with each other to form a complex holographic light field.
- the holographic light field needs to be holographically recorded, that is, the information such as the brightness and darkness of the object and the depth of field are recorded in the holographic material to form a hologram.
- Reconstruction, holograms can be displayed dynamically using continuous film, but the imaging perspective is still inside the film.
- the object of the present application is to provide a particle projection space imaging system, which aims to solve the technical problems in the prior art that the particle projection space imaging system depends on the solid realization and the holographic three-dimensional film cannot be aerially projected.
- the present application provides a particle projection space imaging system, including a particle source for generating and accelerating a particle beam, a deflection coil group for scanning and deflecting the accelerated particle beam to form a dynamic three-dimensional particle array, and An excitation coil group generating an excitation magnetic field, and a scanning control mechanism for controlling the particle source, the deflection coil group, and the excitation coil group, the dynamic three-dimensional particle array is excited by the excitation magnetic field generated by the excitation coil group.
- Particles, and the particles generate luminous effects and generate pixel points after being stimulated by radiation.
- a spatial stereoscopic image is formed by using human vision residues; a three-dimensional particle array region within the excitation magnetic field is a display region.
- the deflection coil group includes a pair of field deflection coils arranged in a first direction and a pair of row deflection coils arranged in a second direction, and the first direction and the second direction are in a first predetermined clip. Corner set.
- the particle source is an electron gun, a first particle accelerator, or a storage ring.
- a second particle accelerator provided between the deflection coil group and the display area is further included.
- the second particle accelerator may be an electric field accelerator, a laser accelerator, a drift tube accelerator, a traveling wave tube accelerator or a standing wave tube accelerator, and the second particle accelerator is used to compensate the particle beam after being deflected by the deflection coil group. Lost energy.
- the display area has a back surface for receiving the particle beam, a front surface corresponding to the back surface, and a side surface adjacent to the back surface, and the excitation coil group is provided on a side surface of the display area. Or positive.
- a vacuum housing with an internal vacuum is further included, and the particle source and the second particle accelerator are both disposed in the vacuum housing.
- the direction of the excitation magnetic field generated by the excitation coil group and the direction of flight of the particle beam are set at a second predetermined angle.
- the predetermined included angle is 90 °.
- the display area is a cuboid.
- the display area is a square cone.
- the excitation coil group is a deflection magnet or a undulator.
- the particle beam is an electron beam.
- the particle beam is controlledly emitted from the particle source in the form of a particle cluster and in a pulsed manner.
- the particle projection space imaging system provided by the present application has the beneficial effect that the particle projection space imaging system generates and accelerates a particle beam by setting a particle source, and uses a deflection coil group to deflect the particle beam to form a dynamic three-dimensional particle array.
- the display area generates an excitation pulse magnetic field, which excites the dynamic particles that currently reach the predetermined pixel point position to cause a radiation effect to form a three-dimensional stereoscopic image, which does not depend on the solid display medium.
- the scanning control mechanism can control the size, speed, and energy of the particle beams emitted by the particle source, and control the scanning deflection coil group and the particle excitation coil group to adjust the deflection angle of the particle beam, and the time when the particle beam reaches the display area, thereby generating a three-dimensional Motion image.
- FIG. 1 is a schematic structural diagram of a particle projection space imaging system according to an embodiment of the present invention.
- FIG. 2 is a schematic structural diagram of a particle projection space imaging system according to another embodiment of the present invention.
- FIG. 3 is a schematic structural diagram of a particle projection space imaging system according to another embodiment of the present invention.
- FIG. 4 is a schematic diagram of projection imaging of a particle projection space imaging system according to an embodiment of the present invention.
- 1-particle source 2-deflection coil group; 21-field deflection coil; 22-line deflection coil; 3-second particle accelerator; 4-excitation coil group; 41-wave oscillator; 42-deflecting magnet; 5-display area ; 6-dimensional image.
- first, second, etc. are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as “first” and “second” may explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality” is two or more, unless it is specifically and specifically defined otherwise.
- the particle projection space imaging system includes a particle source 1, a deflection coil group 2, an excitation coil group 4, and a scanning control mechanism (not shown in the figure).
- the particle source 1 is used to generate and accelerate a particle beam, so that the particle beam has a certain initial velocity.
- the particle source 1 emits the particle beam in a high-frequency pulse manner, so that the particle beam enters the deflection coil group 2.
- the particle beam is an electron beam. Compared with other particles, the mass of the electrons is smaller. Under the current engineering and technical conditions, the electron beam is easier to obtain and accelerate, and the radiation effect generated by the dynamic electrons is also larger than other heavy particles.
- the particle source 1 may be an electron gun, a first particle accelerator, or a storage ring.
- the particle source 1 may generate electrons and provide the electrons with a certain initial velocity.
- the particle beam is emitted from the particle source 1 in the form of a particle cluster and in a pulse manner, so as to achieve the purpose of accurately controlling the positioning of the spatial pixel points.
- the deflection coil group 2 is used to scan the deflected and accelerated particle beam, and deflect the accelerated particle beam to form a dynamic three-dimensional particle array.
- the array has a two-dimensional closed cross-section, and the cross-section scanning method can be two-dimensional planar scanning.
- the deflected particles move along their preset trajectories to the pixels in the magnetic field area generated by the particle excitation coil group 4.
- the excitation coil group 4 uses a scanning magnetic pulse to excite each particle cluster that reaches a predetermined pixel point in the display area 5.
- the pixel is illuminated by the excitation light, and the three-dimensional particle array region located in the magnetic field is the display region 5.
- the display area 5 contains a plurality of spatial pixels, and the incident particle cluster can reach the corresponding predicted spatial pixels under the action of the scanning control mechanism, and then is excited and lighted. Because of the dispersion of the pixels, under the control of the scanning control mechanism, a single magnetic pulse can be used to excite the pixels of several pixels at the same time to save scanning time.
- the particle projection space imaging system does not depend on any solid medium and can work in air or vacuum to generate dynamic three-dimensional images 6.
- the scanning control mechanism can control the particle source 1, the deflection coil group 2, the second particle accelerator 3, and the excitation coil group 4. Specifically, the scanning control mechanism controls the size, velocity, and energy of the currently emitted particle clusters through the particle source 1, and scans and controls the deflection angle of each electron cluster through the deflection coil group 2 to dynamically display the three-dimensional image 6.
- the speed of the particle beam and the intensity of the magnetic field generated by the deflection coil group 2 are adjusted to change the emission spectrum of the stimulated radiation to generate a color image or a monochrome image.
- the scanning control mechanism must predict the time for each particle cluster to reach a predetermined space pixel point after being deflected and scanned by the deflection coil group 2 so as to start the excitation coil group 4 at an appropriate time to excite particles reaching the space pixel point and radiate with dynamic particles The effect lights up the pixel.
- the particle projection space imaging system provided by the present invention accelerates a particle beam by setting a particle source 1 and uses a deflection coil group 2 to deflect the particle beam to form a particle beam of a dynamic particle array.
- the excitation coil group 4 generates a magnetic field in the display area 5 and excites the particle beam to cause radiation to form a three-dimensional space image, which does not depend on the solid display medium.
- the scanning control mechanism can control the number, speed, and energy of particles emitted by the particle beam from the particle source 1, and can also control the deflection angle of the particle beam by the deflection coil group 2 and the excitation coil group 4, the time when the particle beam reaches the display area 5, and so on. Generate dynamic three-dimensional images 6.
- the particle projection space imaging system further includes a second particle accelerator 3, and the second particle accelerator 3 is provided in the deflection yoke. Between the group 2 and the display area 5, a secondary acceleration of the deflected particle beam can be performed to compensate the energy lost by the particles during scanning and deflection.
- the particle beam enters the display area 5 after passing through the second particle accelerator 3.
- the second particle accelerator 3 may be an electric field accelerator, a laser accelerator, a drift tube accelerator, a traveling wave tube accelerator, or a standing wave tube accelerator.
- the second particle accelerator 3 may not be used.
- the parameters of the particle source 1 may be adjusted to extend the deflection coil.
- the particle deflection radius of the group 2 allows the particle beam scanned and deflected by the deflection coil group 2 to directly enter the display area 5.
- the deflection coil group 2 includes a pair of field deflection coils 21 disposed along the first direction, and a pair of The row deflection coils 22 arranged in the directions are arranged at a first predetermined angle between the first direction and the second direction.
- the first predetermined included angle is 90 °
- the first direction is a vertical direction
- the second direction is a horizontal direction.
- the field deflection coil 21 generates a periodically changing magnetic field in the vertical direction to scan the particle beam in the vertical direction
- the row deflection coil 22 generates a horizontally changing magnetic field in the horizontal direction to scan the electron beam in the horizontal direction.
- the electron beam can be deflected to a predetermined scanning line by the deflection coil group 2.
- the display area 5 is composed of a scanning line matrix and the cube is a cuboid. Gyroradiation is generated under the excitation of the excitation coil group 4, and the image viewing angle is almost omnidirectional, which is isotropic. The difference between the radiation intensity of the particle beam on the front of the display area 5 and the radiation intensity on the side of the display area 5 is not large. For an observer, the radiation intensity at a single viewing angle is almost the same.
- the excitation of the particle radiation by the particle excitation coil group 4 belongs to pulse-type instantaneous excitation of a specific pixel point, and can be regarded as a uniform magnetic field relative to the vicinity of the specific pixel point.
- the display area is composed of a scanning line matrix.
- the display area 5 is a square cone, a square cone.
- the vertex is the observation area.
- the radiation produced is synchrotron radiation. Since the synchrotron radiation has extremely strong directivity and large radiation intensity, in this embodiment, the image projected in the display area can only be observed near a specific point in the observation area, and no image can be seen in other directions and positions.
- the excitation coil group 4 is a undulator 41 or a deflecting magnet 42.
- the oscillating device 41 uses the oscillating device 41 to excite particles will limit the size of the displayed image and affect the viewing angle, but the magnetic field generated by the oscillating device 41 is linear.
- the magnetic field generated by a single deflecting magnet 42 is relatively weak and the linearity of magnetic field lines is poor, which requires slightly higher requirements for the scanning control mechanism.
- the display area 5 has a rear surface, a front surface corresponding to the rear surface, and a side surface adjacent to the rear surface.
- the particle beam passes through The back side of the display area 5 is incident, and the particle excitation coil group 4 is disposed on the side of the display area 5.
- the scanning control mechanism controls the excitation coil group 4 to scan in a pulse manner, and when the particle beam reaches a predetermined space pixel point, the particle beam is excited to generate cyclotron radiation or Synchrotron radiation illuminates the pixel, and can deviate the electron beam from the front observation area to prevent the observer in the front observation area from being irradiated by the particle beam.
- the time it takes for the electron beam to reach the corresponding spatial pixel is also different.
- the electron beams directed at several spatial pixels can reach the target pixel at the same time, and then the coil group 4 is excited to excite the electrons to light up the spatial pixels and form a multi-point time-scan
- Non-point-to-point scanning greatly saves projection time, and can be close to a two-dimensional scanning system in terms of system scan time consumption.
- the particle projection space imaging system further includes a vacuum housing with an internal vacuum.
- the particle source 1 and the second particle accelerator 3 are all Set in a vacuum enclosure.
- the vacuum inside the vacuum envelope minimizes the loss of the particle beam in air transmission.
- the vacuum casing has an exit port through which the particle beam exits, and the exit port is made of a low-density material to reduce its obstruction to particles.
- the nucleus of a low-density material also produces bremsstrahlung radiation for individual particles passing through, the obstruction is negligible relative to the number of particles in the entire particle cluster.
- the magnetic field generated by the excitation coil group 4 and the particle beam are set at a second predetermined angle to make the particle beam produce a radiation effect.
- the second predetermined included angle is 90 °.
- the radiation effect of the particle beam is the largest.
- the scanning control mechanism dynamically adjusts the energy of the space scanning particle beam, the number of particles in the particle cluster, and the particle excitation coil group 4.
- the intensity of the magnetic field, etc. can be used to change the wavelength and average radiant power of the radiation to obtain a three-dimensional image 6 in color display.
- adjusting the intensity and emission angle of the particle beam using a multi-directional multiple projection system and an infrared tracking / spatial positioning system, allows the user to interactively operate the spatial image without the user's complex actions blocking the particle beam. Create, add, modify, delete, section, rotate, distort, and stretch spatial images.
- FIGS. 1 to 4 Please refer to FIGS. 1 to 4 as a specific implementation of the particle projection space imaging system provided by the present invention.
- the particle beam only needs to perform a two-dimensional cross-section boundary of a three-dimensional image.
- the magnetic field only needs to excite the spatial pixels on the surface of the three-dimensional image 6, and there is no need to light up the spatial pixels on the inside of the three-dimensional image 6.
- the 2D plane scanning of the particle beam can omit the area without image boundaries in the 6-section of the 3D image, and only need to do the boundary scanning of the stereo image, which saves scanning time and hardware resources.
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Abstract
Description
Claims (15)
- 粒子投射空间成像系统,其特征在于:包括用于产生及加速粒子束的粒子源、用于扫描加速后的所述粒子束并将其偏转形成动态三维粒子阵列的偏转线圈组、用于产生激发磁场的激发线圈组、以及用于控制所述粒子源、所述偏转线圈组及所述激发线圈组的扫描控制机构,通过所述激发线圈组产生的激发磁场激发所述动态三维粒子阵列中的粒子,且所述粒子受激辐射后产生发光效应并生成像素点,利用人眼视觉残留形成空间立体图像;位于所述激发磁场内的三维粒子阵列区域为显示区域。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:所述偏转线圈组包括一对沿第一方向设置的场偏转线圈、以及一对沿第二方向设置的行偏转线圈,所述第一方向和所述第二方向呈第一预定夹角设置。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:所述粒子源为电子枪、第一粒子加速器或者储存环。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:还包括设于所述偏转线圈组和所述显示区域之间的第二粒子加速器。
- 如权利要求4所述的粒子投射空间成像系统,其特征在于:所述第二粒子加速器可为电场加速器、激光加速器、漂移管加速器、行波管加速器或者驻波管加速器,所述第二粒子加速器用于补偿粒子束经所述偏转线圈组偏转后所损失的能量。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:所述显示区域具有用于接收所述粒子束的背面、与所述背面相对应的正面、以及与所述背面相邻的侧面,所述激发线圈组设于所述显示区域的侧面或者正面。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:还包括内部真空的真空外壳,所述粒子源、所述第二粒子加速器均设于所述真空外壳内。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:所述激发线圈组产生的所述激发磁场的方向与所述粒子束飞行方向呈第二预定夹角设置。
- 如权利要求8所述的粒子投射空间成像系统,其特征在于:所述第二预定夹角为90º。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:所述粒子束为非相对论性粒子束时,所述显示区域为长方体。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:所述粒子束为相对论性粒子束时,所述显示区域为方锥形。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:所述激发线圈组为偏转电磁铁或者波荡器。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:所述粒子束为电子束。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:粒子束以粒子团的形态并以脉冲方式从所述粒子源中射出。
- 如权利要求1所述的粒子投射空间成像系统,其特征在于:在扫描控制机构的控制下,使若干组粒子束团同时到达其各自的预定像素点,以单个磁脉冲同时点亮若干个像素点。
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CN111427165A (zh) * | 2020-03-04 | 2020-07-17 | 李超 | 空间成像系统 |
CN112577859B (zh) * | 2020-12-02 | 2023-05-30 | 苏州海狸生物医学工程有限公司 | 一种测量磁性微球基本物理参数的实验装置及测量方法 |
CN113391461A (zh) * | 2021-06-30 | 2021-09-14 | 宁波Gqy视讯股份有限公司 | 一种成像方法和系统 |
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- 2019-02-13 US US16/274,729 patent/US10652530B2/en active Active
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CN109709760A (zh) | 2019-05-03 |
US10652530B2 (en) | 2020-05-12 |
US20190379886A1 (en) | 2019-12-12 |
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