IMAGING AND FORMING METHOD USING PROJECTION OPERATION AND BACK PROJECTION METHOD

Abstract

A method of the present invention comprises: manufacturing a two-dimensional or three-dimensional real image using a projection operation and back projection method, and also comprises: completing two-dimensional display, three-dimensional display, two-dimensional printing and three-dimensional printing using the real image. The present invention belongs to the field of flat-panel display, the field of 3D stereographic display, the technical field of printing, the field of rapid prototyping, the field of additive manufacturing, and the field of 3D printing. The method is similar to a projection data collection and back projection reconstruction method in the computed tomography (CT) technology. The achievement of the computed tomography (CT) technology is the projection data collection of real objects and reconstruction of digitized tomographic images, so as to convert the real objects into virtual data. Projection data collection is replaced with projection operation, the digitized back projection reconstruction method is replaced with the real back projection method, so as to convert virtual data into real objects or real images. The adopted projection rays comprise light, electromagnetic waves, high-energy rays, particle flows, sound waves, shock waves, currents or chemical waves.

Claims

1. A method of making a two-dimensional and/or three-dimensional real image, which is characterized in that using the back projection method, the back projection method making rays distributing in more than one sector or pyramid regions from more than one direction toward to the imaging area, every sector/pyramid region of rays has a parameter distribution. all the sector/pyramid regions of rays forming a parameter distribution due to superposition in space, the parameter distribution due to superposition representing the real image.

2. According to the method of making a 2D/3D real image of claim 1, which is characterized in that using a light, electromagnetic wave, high-energy radiation, particle flow, acoustic wave, shock wave, current and/or chemical wave as a ray.

3. According to the method of making a 2D/3D real image of claim 1, which is characterized in that using Ray projection unit and/or Ray scanning unit, including Optical projection device, laser scanning device, electromagnetic wave scanning device, electron beam scanning device and/or ultrasonic beam scanning device.

4. According to the method of making a 2D/3D real image of claim 1, which is characterized in that the real image rotating/moving/resting relative to the other parts.

5. According to the method of making a 2D/3D real image of claim 1, which is characterized in that relative with a straight line, the line can also be a polygonal line and/or curve.

6. According to the method of making a 2D/3D real image of claim 1, which is characterized in that using the method to implement two-dimensional display, three-dimensional display, 2D printing and/or 3D printing.

7. According to the method of making a 2D/3D real image of claim 6, which is characterized in that using Light-induced substance, Thermally induced substance, Vibration-induced substance, Fluorescent substance, Astigmatism substance, Emissive light substance and/or Passive astigmatism substance.

8. A method of making a parameter distribution of rays, which is characterized in that using the projection data acquisition or projection operation from a real/virtual 2D/3D graph/image or 3D object into the projection data, the projection data determining the distribution parameters of the rays in sector/pyramid regions, the projection data including not filtered and not weighted data, or including filtered data, or including weighted data, or including filtered and weighted data.

9. A method of making projection data, which is characterized in that using projection operation to change a 2D/3D graph/image or 3D object into the projection data, the projection operation including that calculating a virtual beam penetrating the 2D/3D graph/image or 3D object into the projection data, including optional filtering operation and optional weighting operation, all calculations can be at one stage, can be in several stages.

10. According to the method of making projection data of claim 9, which is characterized in that two optional methods (1) one way is that the virtual beam attenuation in the internal region of a two-dimensional graphic image or 3D objects, or the virtual beam attenuation in the external region of a two-dimensional graphic image or 3D objects. (2) Another way is that the virtual beam attenuation inside of the near region of the outline of two-dimensional graphic image or near region of the surface of 3D objects, or the virtual beam attenuation outside of the near region of the outline of two-dimensional graphic image, or the virtual beam attenuation outside of the near region of the surface of 3D objects.

Description

THE BEST EMBODIMENT OF THE INVENTION

The Best Way to Implement

[0096] 1 in Case of Light Curing Resin

[0097] The resin for light curing is a light-induced substance. The resin is held in a transparent smooth round glass cup and is placed on the rotation table. The center of the cup coincides with the center of rotation. Projecting the light into the glass using a projector. The center line of the projection area is aligned with the rotating shaft. A rotating handle can be provided in the illumination area without using a transparent round glass. Pouring the light curing resin into the rotating handle. Smaller aperture and larger power are recommended for projectors. With a smaller aperture, the intent is to achieve clearer imaging before and after the focal plane is imaged. With the intended as same as smaller aperture, a longer lens focal length can be used. With greater power, the intent is to gain greater power density in the forming region. With the intent as same as greater power, the projector can also be modified to remove a portion of the lens set to achieve a smaller imaging area and greater power density. For option, a mirror is added to the path after the light beam passes through the forming substance so that the beam can be reused.

[0098] The projection pattern is controlled by the computer and synchronized with the rotation. The projection pattern is the data of the pyramid region derived from the operation. A lens grating can also be added to the optical path, and the lens grating is used as the light path unit. A pattern in a projection pattern that contains a number of data of pyramid regions. After the light passes through the lens grating, a plurality of pyramid beams are simultaneously sent to the light curing resin. You can also increase the number of projectors and lens gratings. The rotating part can be omitted when the pyramid regions to the light curing resin are enough. When the projectors are enough, the light path unit can be omitted.

[0099] Among them, the results of projection operation can be filtered or weighted, or both, can without filtering and weighting operations. The filtering is for clearer energy distribution. The weighting is to compensate for the absorption of light by the material. The weighting is in order to avoid the block from formed part.

[0100] When a part of the Light curing resin absorbs light above the threshold, this part is solidified. As a whole, the shape of the curing region corresponds to the shape of the 3D virtual model. Realized the conversion from virtual model to real object. The same or similar method can be applied to other resins, food materials, plastics, light curing agents, metals, ceramics, rubber, glass and the like in light cured resin embodiments. Egg white is a food material.

[0101] 2 Ultrasonic Heat Treatment Solidify Egg White

[0102] Egg white is a thermally induced substance. Put the egg white in a round cup with a smooth wall and place it on a rotation table.

[0103] The center of the cup coincides with the center of rotation. The ultrasonic is projected into the cup by a high-power ultrasonic scanner. The center line of the projection area is aligned with the rotating shaft. A rotating handle may be provided within the ultrasonic radiation region without the use of the cup. Simultaneously pour the egg white into the rotating handle under ultrasonic irradiation. The overall temperature of the egg white is close to the curing temperature by auxiliary heating, while the contribution of the ultrasonic scanning device is to providing heat energy above the overall temperature.

[0104] The projection pattern is controlled by the computer and synchronized with the rotation. A projection pattern is the data of a pyramid region or a cylinder region derived from the projection operation. An acoustic lens can also be added to the sound field, and the acoustic lens is used as an acoustic unit. A pattern in a projection pattern that contains a number of pyramid or cylinder regions.

[0105] After the ultrasonic wave passes through the acoustic lens, a plurality of pyramid or cylinder ultrasonic beams are simultaneously thrown into the egg white. The ultrasonic scanning device and the number of acoustic lenses can also be increased. When the ultrasonic beam to the egg white is enough, the rotating parts can be omitted.

[0106] Among them, the results of projection operation can be filtered or weighted, or both, can without filtering and weighting operations. The filtering is for clearer energy distribution. The weighting is to compensate for the absorption of ultrasound by the material. The weighting is in order to avoid the block from formed part.

[0107] When a part of the egg white reaches the curing temperature, this part of the egg is solidified. On the whole, the shape of the curing region corresponds to the shape of the 3D model. Realized the conversion from virtual model to real object. The same or similar method may be applied to other food ingredients, resins, plastics, heat curing agents, metals, ceramics, rubber, glass and the like.

[0108] 3 in the Course of Annealing, Ultrasonic Forming is Used

[0109] In a glass or metal casting and forging, the material is formed by molding and cooling. By applying the present invention, ultrasonic waves are applied during cooling and the energy distribution of ultrasonic waves is formulated in accordance with a digital model. A stress distribution, or stress resistance, that matches the digital model can be obtained. Finally, get the divided materials in natural/vibration/beating action, the material may be including glass and/or metal casting. The casting including forging.

[0110] A phased array ultrasonic generation device on the vessel wall of a container distributes ultrasonic waves directed to molten glass or molten metal.

[0111] The projection value of each direction is obtained according to the projection operation to modulate the ultrasonic beam. A projection pattern is the data of a pyramid region or a cylinder region derived from the operation. The modulated ultrasonic beams are projected directly into the molten glass or molten metal. Each beam in the actual space corresponds to the beam represented by the computed results in the virtual space. Each direction of the ultrasonic beam is superimposed to form a specific energy distribution in space. These energy distributions are derived from digital models. The energy is absorbed by the glass or metal in solidification, and then the glass or metal in solidification is transformed. The digital model is transformed into an entity.

[0112] Among them, the results of projection operations can be filtered or weighted, or both, can without filtering and weighting operations. The filtering is for clearer energy distribution. The weighting is to compensate for the absorption of ultrasound by the material. The weighting is in order to avoid the block from formed part.

[0113] 4 the Particles are Transported by Ultrasonic Wave to Make the Spatial Distribution of Particles

[0114] Fine particles are driven by ultrasonic waves. More ultrasonic energy, more/fewer particles. Less ultrasonic energy, more/fewer particles. By using the invention, the energy distribution of the ultrasonic wave is controlled, and the spatial distribution of the particles is controlled. That is, the display is realized. Fix particles by heating or by any other means. Finally, the 3D printing is realized.

[0115] A phased array ultrasonic generator make phased array ultrasonic waves distributed over the space in a container. Fill the container with particles at any time.

[0116] The projection value of each direction is obtained according to the projection operation to modulate the ultrasonic beam. A projection pattern is the data of a pyramid region or a cylinder region derived from the operation. The modulated ultrasonic beam is projected directly into the space inside the container. Each beam in the actual space corresponds to the beam represented by the computed results in the virtual space. Each direction of the ultrasonic beam is superimposed to form a specific energy distribution in space. These energy distributions are derived from digital models. The control of ultrasonic energy distribution is to control the spatial distribution of particles. That is, the display is realized. Fix particles by heating or by any other means. Finally, the 3D printing is realized.

[0117] Among them, the results of projection operations can be filtered or weighted, or both, can without filtering and weighted operations. The filtering is for clearer particle distribution. The weighting is to compensate for the attenuation of ultrasound.

[0118] 5 Many Rotating Beams are Superimposed to Display

[0119] Use frosted glass or any diffuse screen as an imaging panel.

[0120] The beam source in the rotation is used as a light emitting unit. The point is that the beam tilts slightly into the panel to form a visible straight line. The light beam source in the rotation creates a circular spot extending from the center to the far end of the imaging panel

[0121] Arranging a light-emitting unit array in a rectangular frame shape.

[0122] The light in each direction of each light emitting unit is controlled by a computer. The data of a sector region derived from projection operation. The collaboration of all the light-emitting units creates visual images. The digital representation of the image is converted into optics.

[0123] Among them, the results of projection operations can be filtered or weighted, or both, can without filtering and weighted operations. The Filtering is for clearer images. The weighting is to compensate for uneven luminance of the picture.

Embodiments of the Present Invention

[0124] 1 Optical Scheme in Rapid Prototyping/Additive Manufacturing/3D Printing Field

[0125] (1) A Scheme for Using Rotation Unit

[0126] Position forming substance on rotation unit. If one of the two states is liquid, then it can be used within/without the transparent container to hold the forming substance. If one of the two states is gas, it can be used within/without sealing the transparent container to hold the forming substance.

[0127] The rotating member starts rotating, and light emitting unit project beams to the forming substance. The beams are modulated. Modulation is performed according to the projection operation. The operations can be filtered, weighted, or not filtered or weighted. In the case of a slow change in the nature of a substance, if it is liquid or gas before it is changed, then liquid or gas will need to be rotated along with the container. Under the premise that the substance is rapidly changing, it may permit, but does not require, the liquid or gas to rotate along with the container. In the premise of rapid change in the nature of the forming material, forming material including solid powder, liquid, and gas, allowing light at the same time it or injection forming material, without advance with a container. Allow the flow of material from forming region and illumination region.

[0128] In the rotation, a modulated beam is applied to complete the forming process. Each beam in the actual space corresponds to the beam represented by the calculated results in the virtual space. Each beam in the actual space can also be derived from projection data acquisition.

[0129] A single axis rotating component achieves full circumferential illumination after a cycle. For forming purposes, it can take only one cycle, or more than a cycle, and can take less than a cycle. The multiple axes rotating parts can make the whole space angle and illuminate in any direction. In order to achieve the purpose of forming, it can be used in all directions of the whole space, or in some directions.

[0130] (2) A Scheme for Using Light Path Unit

[0131] Position forming substance in the workspace. If one of the two states is liquid, then it can be used within/without the transparent container to hold the forming substance. If one of the two states is gas, it can be used within/without sealing the transparent container to hold the forming substance.

[0132] The light emitting unit projects a beam of light into the forming substance. The light emitted by a light emitting unit contains many parts simultaneously. Each part contains light from the pyramid region. The light beam projects directly into the forming substance or passes through the light path unit to change the light path and then projects to the forming substance, thus completing the pyramid beam which is applied to the forming substance and surrounds the forming substance. The beams are modulated. Modulation is performed according to the projection operation. The operation that can be filtered, weighted, or not filtered and/or weighted. In the case of a slow change in the nature of a substance, if it is liquid or gas before it is changed, then liquid or gas will need to be rotated along with the container. Under the premise that the substance is rapidly changing, it may permit, but does not require, the liquid or gas to rotate along with the container. The forming substance including solid powder, liquid and/or gas. allowing spray substance in light irradiation procedure, without advance with a container. Allow the forming substance flow leave illumination region.

[0133] The forming process is performed by applying a modulated beam to the forming substance. Each beam in the actual space corresponds to the beam represented by the calculated results in the virtual space. Each beam in the actual space can also be derived from projection data acquisition. In order to achieve the goal of forming, the beam can be covered with a whole circle or the entire space angle, also can not cover the whole circle or the entire space angle.

[0134] 2 Ultrasonic Scheme in Rapid Prototyping/Additive Manufacturing/3D Printing Field

[0135] (1) A Scheme for Using Rotating Unit

[0136] Position forming substance on rotation unit. If one of the two states is liquid, then it can be used within/without the transparent container to hold the forming substance. If one of the two states is gas, it can be used within/without sealing the transparent container to hold the forming substance.

[0137] The rotation unit starts rotating, and ultrasonic emitting unit project beams to the forming substance. The beams are modulated. Modulation is performed according to the projection operation. The operations can be filtered, weighted, or not filtered or weighted. In the case of a slow change in the nature of a substance, if it is liquid or gas before it is changed, then liquid or gas will need to be rotated along with the container. Under the premise that the substance is rapidly changing, it may permit, but does not require, the liquid or gas to rotate along with the container. In the premise of rapid change in the nature of the forming material, forming material including solid powder, liquid, and gas, allowing ultrasonic at the same time it or injection forming material, without advance with a container. Allow the forming substance flow leave illumination region.

[0138] In the rotation, a modulated beam is applied to complete the forming process. Each beam in the actual space corresponds to the beam represented by the calculated results in the virtual space. Each beam in the actual space can also be derived from projection data acquisition.

[0139] A single axis rotating component achieves full circumferential illumination after a cycle. For forming purposes, it can take only one cycle, or more than a cycle, and can take less than a cycle. The multiple axes rotating parts can make the whole space angle and illuminate in any direction. In order to achieve the purpose of forming, it can be used in all directions of the whole space, or in some directions.

[0140] (2) A Scheme for Using Acoustic Units

[0141] Position forming substance in the workspace. If one of the two states is liquid, then it can be used within/without the transparent container to hold the forming substance. If one of the two states is gas, it can be used within/without sealing the transparent container to hold the forming substance.

[0142] The ultrasonic emitting unit projects a beam of ultrasonic into the forming substance. The ultrasonic emitted by an ultrasonic emitting unit contains many parts simultaneously. Each part contains ultrasonic from the pyramid region. The ultrasonic beam projects directly into the forming substance or passes through the acoustic unit to change the ultrasonic path and then projects to the forming substance, thus completing the pyramid beam which is applied to the forming substance and surrounds the forming substance. The beams are modulated. Modulation is performed according to the projection operation. The operation that can be filtered, weighted, or not filtered and/or weighted. In the case of a slow change in the nature of a substance, if it is liquid or gas before it is changed, then liquid or gas will need to be rotated along with the container. Under the premise that the substance is rapidly changing, it may permit, but does not require, the liquid or gas to rotate along with the container. The forming substance including solid powder, liquid and/or gas. allowing spray substance in ultrasonic irradiation procedure, without advance with a container. Allow the forming substance flow leave illumination region.

[0143] The forming process is performed by applying a modulated beam to the forming substance. Each beam in the actual space corresponds to the beam represented by the calculated results in the virtual space. Each beam in the actual space can also be derived from projection data acquisition. In order to achieve the goal of forming, the beam can be covered with a whole circle or the entire space angle, also can not cover the whole circle or the entire space angle.

[0144] 3 A Scheme for 3D/2D Display or 2D Printing

[0145] (1) A Scheme for Using Light Beam

[0146] Light emitting unit: The light emitting unit selectively emits light beams to a certain space angle.

[0147] The beam in each direction can be independently modulated without the beam in other directions.

[0148] Light-emitting array: arrays of many light-emitting units. Usually arranged in a rectangular box or any other shape, there are many light emitting units on the border of the box and there is no inside the frame, or be arranged arbitrarily.

[0149] A Light-emitting array is used in the scheme. The beam is injected into the imaging panel. The beams are modulated. Modulation is performed according to the projection operation. The modulation can also be carried out in accordance with the projection data acquisition results. The operations can be filtered, weighted, or both, can without filtering and weighting. Two examples are used to inject the beam into the imaging panel: one way is to tilt the beam parallel to the imaging panel slightly toward the faceplate; the other way is to inject the beam from the side of the panel into the imaging panel with a thickness.

[0150] The panel presents the image referenced the projection operation.

[0151] (2) A Scheme for Using Electronic Current

[0152] Wiring with electroluminescent material or electrochromic material on a substrate. In general, the wiring is in line segments.

[0153] The endpoints of a line segment are always at the boundary of the panel's effective area. On the boundary, many segments are connected at the same point, each line extending in different directions. Each segment can be controlled by addressing parts. The effective area is the imaging area, and the panel may be a little larger than the imaging region. A point on the boundary of a region may be a small area on the boundary of a region that connects the line extending to another point. Addressing unit are not limited to one approach. An example is: for any two points on the boundary of an effective area, one of them flows into the current and the other flows out of the current. At a time, the line between the two points is selected, while other lines are not selected, that is, for the purpose of addressing.

[0154] Current is used to driving electroluminescent or electrochromic materials. These currents are modulated. Modulation is performed according to the projection operation. The modulation can also be carried out in accordance with the projection data acquisition results.

[0155] The projection operation can be filtered, weighted, or both, can without filtering and weighting operations.

[0156] The panel presents the image referenced the projection operation.

INDUSTRIAL APPLICABILITY

[0157] The present invention uses the projection operation and the back projection method of the computer tomography (CT) technology to apply in the field of rapid prototyping/additive manufacturing/3D printing, 3D/2D display or 2D printing. The transformation from virtual model to real object or real image. Solving the problem of forming layer by layer processing leads to slow problems. The problem of material shrinkage in progressive processing is solved by rapid exposure. avoiding the difficulty of making a flat panel.