CN115032810A - High-performance three-dimensional (3D) display device and method - Google Patents
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Abstract
The present disclosure relates to the field of volumetric 3D display, and more particularly, to a high performance volumetric 3D display device, a control system for the high performance volumetric 3D display device, and a high performance volumetric 3D display method. Wherein, high effect body 3D display device includes: the device comprises a first laser array unit, a second laser array unit and an up-conversion light-emitting unit; the control system of the high-performance body 3D display device also comprises a body 3D target chromatography coding unit and a laser array decoding control unit; the device realizes the volume 3D target display, can break through the scale limitation of the volume 3D display, and greatly reduces the waste of energy consumption.
Description
Technical Field
The present disclosure relates to the field of volumetric 3D display, and more particularly, to a high performance volumetric 3D display device, a control system for the high performance volumetric 3D display device, and a high performance volumetric 3D display method.
Background
In recent years, AR technology has been developed in a great number of application fields. The volumetric 3D display (also called true 3D display) takes a special position in various 3D display technologies by virtue of its convenience without any auxiliary equipment and real impression closer to reality, and has received extensive attention.
The current bulk 3D display methods can be roughly classified into two major categories, i.e., 3D display based on fixed light emitters and 3D display based on transparent solution + up-conversion light-emitting particles. The second method has no light path shielding and is convenient and flexible to configure, and is an ideal candidate scheme for 3D display. The proposal utilizes a computer to control two or more beams of infrared laser to be converged on the same point in a transparent solution containing up-conversion luminescent particles, and realizes the luminescence of the point through the energy focusing of each beam and the up-conversion effect of the luminescent particles, thereby lighting up an actual 'image point' in the solution. Several such image points are "lit" simultaneously, i.e. a near-real 3D image can be formed.
At present, in a solution of a transparent solution and up-conversion luminescent particles, on one hand, only the intersection of two beams of infrared laser is considered to lighten a single image point, and the position of the image point is changed by controlling the pointing direction of the laser to form single-point scanning imaging; on the other hand, the DMD (digital micromirror device) technology is utilized to realize simultaneous convergence and multi-image-point display of multiple beams of infrared laser. The former can only realize single-action point lighting and can not display a real body target; the latter is limited by the efficiency and size of the DMD itself, and only displays small-scale objects on the order of centimeters. And the laser is continuously emitted, whether the image point is lighted or not depends on whether the DMD reflects the light to the required direction or not, and therefore a large amount of energy consumption is wasted.
Based on the above situation, the invention designs the high-performance bulk 3D display device, the high-performance bulk 3D display device control system and the high-performance bulk 3D display method, which can break through the size limit of bulk 3D display and greatly reduce the waste of energy consumption.
Disclosure of Invention
The present disclosure is directed to overcome the deficiencies of the prior art and provide a high performance body 3D display device, a control system of the high performance body 3D display device and a high performance body 3D display method.
In a first aspect, the present disclosure provides a high performance bulk 3D display device: the method comprises the following steps: the device comprises a first laser array unit, a second laser array unit and an up-conversion light-emitting unit; the first laser array unit and the second laser array unit are laser arrays formed by a plurality of sub lasers, and the first laser array unit and the second laser array unit are provided with first end lines which are arranged in a flush mode. The first laser array unit and the second laser array unit both satisfy: the emergent light beams of each row of sub-lasers parallel to the first end line of the sub-lasers are on the same plane, and second end lines, perpendicular to the first end line, of the first laser array unit and the second laser array unit, which are parallel to each other, are arranged at a certain angle. The first laser array unit and the second laser array unit both satisfy: the emergent beams of each column of sub-lasers parallel to the second end line are on one plane and are parallel to each other. The emergent beam plane of the first column of sub-lasers of the first laser array unit and the emergent beam plane of the first column of sub-lasers of the second laser array unit are the same plane, and similarly, the emergent beam plane of the second column of sub-lasers of the first laser array unit and the emergent beam plane of the second column of sub-lasers of the second laser array unit are the same plane, and so on. When all the sub lasers of the first laser array unit emit laser, any row of sub lasers of the second laser array unit emit laser, the emergent light of the two laser array units form a plane lattice point-shaped intersection point in space, and the up-conversion light-emitting unit is arranged in the space formed by the emergent light surfaces of the first laser array unit and the second laser array unit.
In some embodiments, the second end line of the first laser array unit and the second laser array unit is disposed at any angle between 0 and 90 degrees.
In some embodiments, the second end lines in the first laser array unit and the second laser array unit are arranged at 90 degrees.
In some embodiments, the upconversion luminescent unit comprises a transparent solution in which upconversion luminescent particles are dissolved and a transparent container holding the transparent solution.
In some embodiments, the upconversion luminescent particles consist of a specific chemical composition, preferably of an inorganic matrix doped with rare earth ions. The particles had the following characteristics: if the particle is positioned at the junction of two infrared lasers invisible to naked eyes, the particle can absorb the energy of the two infrared lasers to realize energy level transition, and the energy is radiated outwards at the frequency of visible light, so that the display effect that an isolated point in space is lightened is caused.
In some embodiments, the laser emitted by the first laser array unit and the laser emitted by the second laser array unit are infrared laser with the wavelength between 800nm and 1600 nm.
In a second aspect, the present disclosure further provides a high performance bulk 3D display device control system, including the high performance bulk 3D display device according to the first aspect, a bulk 3D target tomographic encoding unit, and a laser array decoding control unit; the body 3D target chromatographic encoding unit is electrically connected with the laser array decoding control unit, and the laser array decoding control unit is electrically connected with the first laser array unit and the second laser array unit.
In a third aspect, the present disclosure further provides an energy efficient bulk 3D display method, applied to the control system of the energy efficient bulk 3D display device according to the first aspect and the energy efficient bulk 3D display device according to the second aspect, where the method includes outputting, by the bulk 3D object tomosynthesis encoding unit, tomosynthesis data of a bulk 3D display object to the laser array decoding control unit; the laser array decoding control unit controls the corresponding sub lasers in the first laser array unit and the second laser array unit to be started according to the chromatography coding data so as to display data of each layer one by one; the laser emitted by the first laser array unit and the laser emitted by the second laser array unit are intersected with the up-conversion luminescent particles in the up-conversion luminescent unit; the upconversion luminescent particles in the upconversion luminescent unit emit visible light by laser intersection.
In some embodiments, the tomographic encoding data is encoding data of each layer of a volume 3D display target, and the number of layers is less than or equal to the number of rows or columns of the array unit, and the cloud data is hierarchically arranged.
In some embodiments, controlling the first laser array unit and the second laser array unit to display the data of each layer one by one according to the tomographic coded data specifically includes controlling the corresponding sub-laser in the first laser array unit to emit laser light by resolving the surface coordinates of the volumetric 3D display target in the first layer of tomographic coded data; meanwhile, controlling a first row of sub lasers parallel to the first laser array unit in the second laser array unit to emit laser; emergent light beams of the two laser arrays are converged in space to form scattered light-emitting points on the same plane, and the scattered light-emitting points correspond to the first layer of the profile of the 3D target. Controlling the first laser array unit and the second laser array unit to stop emitting laser; controlling the corresponding sub-lasers in the first laser array unit to emit laser by analyzing the surface coordinates of the volume 3D display target in the second layer analytic encoding data; meanwhile, controlling a second row of sub lasers parallel to the first laser array unit in the second laser array unit to emit laser; emergent light beams of the two laser arrays are converged to form scattered light-emitting points on the same plane, and the scattered light-emitting points correspond to the second layer of the profile of the 3D target. Controlling the first laser array unit and the second laser array unit to stop emitting laser; sequentially analyzing the analytic coded data of the Nth layer, and controlling the first laser array unit and the second laser array unit to emit laser to finish the profile display of the Nth layer of the 3D target; and repeating the steps after the integral display of the volume 3D object is completed so as to continuously display the volume 3D object. The repetition frequency should meet the requirement of human eyes on "persistence of vision", that is, the time for completing the whole display of a volumetric 3D object, cannot be longer than 1/30 seconds.
In some embodiments, the upconversion luminescent particle in the upconversion luminescent unit emitting visible light according to laser intersection comprises: and emitting visible light to form the contour display of the Nth layer of the 3D target by the upconversion particles at the intersection of the emergent laser of the corresponding sub-laser in the first laser array unit and the emergent laser of the Nth row of sub-lasers parallel to the first laser array unit in the second laser array unit.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: adopting a transparent solution and an up-conversion luminescent particle system. The method is different from the traditional method in that the related volumetric 3D display method uses a two-dimensional array formed by lasers as a light source, and a specially designed decoding control unit independently controls the light emitting condition of each laser in the two-dimensional array of the lasers, so that a plurality of image points in a transparent solution can be simultaneously lightened, and a 3D image is formed. Compared with the traditional 3D display method based on the DMD, the invention can thoroughly break through the scale limitation of the display object, and sets and arranges the arrangement and scale of the laser array according to the actual size of the display object; on the other hand, for the image point which does not need to be lightened in the space (not on the body target to be displayed), the corresponding laser does not need to emit light, so that the waste of energy consumption can be greatly reduced, and the practical application and the production process of the invention are accelerated.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIGS. 1 and 2 are schematic diagrams of a laser array of a high performance bulk 3D display device;
FIG. 3 is a schematic diagram of a high performance bulk 3D display device;
Detailed Description
The disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those of ordinary skill in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the present disclosure.
As used herein, the term "include" and its variants are to be read as open-ended terms meaning "including, but not limited to. The term "based on" is to be read as "based, at least in part, on". The terms "one embodiment" and "an embodiment" are to be read as "at least one embodiment". The term "another embodiment" is to be read as "at least one other embodiment".
As shown in fig. 1, the high performance bulk 3D display device provided by the present disclosure may include a first laser array unit 1, a second laser array unit 2, and an up-conversion light-emitting unit 3; wherein the first laser array unit 1 and the second laser array unit 2 have the same structure and are laser arrays composed of a plurality of sub lasers, the first laser array unit 1 and the second laser array unit 2 have first end lines 1-1 and 2-1 which are arranged in a flush manner, second end lines 1-2 and 2-2 perpendicular to the first end lines 1-1 and 2-1 in the first laser array unit 1 and the second laser array unit 2 are positioned in the same plane and arranged at a certain angle, the emergent light paths of the first laser array unit 1 and the second laser array unit 2 have space intersection, as shown in fig. 3, the upconversion light emitting unit 3 is disposed in a space formed by the light emitting surfaces of the first laser array unit 1 and the second laser array unit 2.
In the embodiment of the present disclosure, the second end lines 1-2 and 2-2 in the first laser array unit 1 and the second laser array unit 2 are arranged at any angle of 0 to 90 degrees; and more preferably at 90 degrees.
In the embodiment of the present disclosure, the up-conversion light emitting unit 3 includes a transparent solution 3-1 in which up-conversion light emitting particles are dissolved, and a transparent container 3-2 in which the transparent solution is contained.
In the disclosed embodiments, the upconversion luminescent particles are composed of an inorganic matrix doped with rare earth ions. Preferably, the rare earth ions doped in the upconversion luminescent particle comprise any one or more of Y3+, GD3+, ND3+, Yb3+, Er3+, Tm3+, and Ho3 +; wherein the non-linear luminescence principle of the up-converting luminescent particles is utilized. Instead of emitting light, a laser beam strikes the particles and the emitted light is too weak to see. Two beams of laser are simultaneously irradiated on the particle, the input energy is doubled, the nonlinear effect of the particle enables the output to be doubled, but quadrupled eight times or even higher … …, so the visual effect of 'one beam is not lightened, and two beams are lightened' is realized by properly designing the power of the particle and designing the power of the sub-lasers.
In some embodiments, the concentration of the upconversion luminescent particles ranges from 10^ -2 to 10^ -3 mol/L.
In the embodiment of the present disclosure, the laser emitted by the first laser array unit 1 and the laser emitted by the second laser array unit 2 are infrared laser invisible to naked eyes. Preferably, the emission laser wavelength of the first laser array unit 1 and the second laser array unit 2 is 980nm or 808nm, which enables the emission color of the up-conversion luminescent particles under the laser to be any one or more of blue, green and red.
In the embodiment of the present disclosure, as shown in fig. 2, the number of columns of the first laser array unit 1 and the second laser array unit 2 is the same, or as shown in fig. 1, it is further preferable that the number of rows and the number of columns are the same, and the arrangement of the lasers follows a definite rule. The sub-lasers of the first laser array unit 1 and the second laser array unit 2 are arranged according to square lattice points, and the line spacing and the column spacing are the same. The emergent beams of each column of sub-lasers are on one plane and are parallel to each other. The outgoing beam plane of the first column of sub-lasers of the first laser array unit 1 and the outgoing beam plane of the first column of sub-lasers of the second laser array unit 2 are the same plane, and the outgoing beams of the two columns of sub-lasers are converged on the plane to form matrix lattice-like light emitting points. Similarly, the plane of the outgoing beam of the second column of sub-lasers of the first laser array unit 1 and the plane of the outgoing beam of the second column of sub-lasers of the second laser array unit 2 are the same plane, and matrix lattice-like light emitting points are formed in the same way, and so on. The intersection points of the emergent beams of the sub lasers of the first laser array unit 1 and the second laser array unit 2 in the space are distributed in a three-dimensional lattice point manner. Because the luminous particles on each junction point adopt an up-conversion luminous mechanism, only two sub-lasers which are intersected to the point emit light simultaneously, and when two beams of laser are intersected and irradiate the particles simultaneously, the junction point can be lightened, otherwise, the junction point can not emit light. Therefore, the control of whether the space point is lighted or not can be realized by controlling whether the laser emits light or not, so that the volume 3D display is realized.
Based on the same inventive concept, the present disclosure further provides a high performance bulk 3D display device control system, comprising the high performance bulk 3D display device, a bulk 3D target tomographic encoding unit, and a laser array decoding control unit according to the first aspect; the body 3D target chromatographic encoding unit is electrically connected with the laser array decoding control unit, and the laser array decoding control unit is electrically connected with the first laser array unit 1 and the second laser array unit 2.
In the embodiment of the disclosure, the volume 3D object chromatography encoding unit takes a volume 3D format file of a display object as input, performs shape chromatography on the display object, and forms a control code of a laser two-dimensional array. During the tomography process, the unit establishes two different coordinate systems (target coordinate systems, display coordinate systems) and forms the corresponding relation between the coordinate systems. As shown in fig. 1, the volumetric 3D object tomography encoding unit first establishes an object coordinate system for the display object, fixes a three-dimensional direction as the Z-axis of the object coordinate system, and also serves as the spatial orientation of the object tomography. The unit then constructs a virtual plane perpendicular to the Z-axis of the target coordinate system, called the tomographic plane. The unit establishes a display coordinate system by utilizing three-dimensional grid points formed by the intersection of light beams emitted by the two-dimensional arrays of the two lasers. The Z axis of the display coordinate system is consistent with the Z axis direction of the target coordinate system, and the X-Y plane is parallel to the first laser array unit 1 or the second laser array unit 2. And the unit of each coordinate axis is set as the line spacing of the sub lasers in the first laser array unit 1 or the second laser array unit 2. And establishing a display plane which corresponds to the chromatographic plane in the display coordinate system and is parallel to the X-Y plane of the display coordinate system.
In the embodiment of the disclosure, in the volumetric 3D object tomographic coding unit, the tomographic plane can move in parallel along the Z-axis direction of the object coordinate system, taking the first contact with the display object as a starting position until the tomographic plane is separated from the display object. On the other hand, the display plane can also be moved in parallel along the Z-axis direction of the display coordinate system, and the position of the first row including the second laser array unit 2 is used as the initial position. And acquiring the Z-direction dimension of the display target from the target coordinate system, and dividing the Z-direction dimension by the number of lines of the second laser array unit 2 to obtain the moving step length of the chromatographic plane. Correspondingly, the moving step of the display plane is the line pitch of the second laser array unit 2. And acquiring the dimensions of the display target in the X direction and the Y direction from the target coordinate system, and dividing the larger dimension by the row number of the first laser array unit 1 to obtain a corresponding proportionality coefficient between the target coordinate system and the display coordinate system.
In the embodiment of the disclosure, in the volumetric 3D object tomographic encoding unit, when the tomographic process starts, the tomographic plane and the display plane are simultaneously placed at their initial positions. The tomographic plane is moved one step along the Z-axis in the target coordinate system, and in synchronization with this, the display plane is also moved one step (corresponding to a different row of the second laser array unit 2) in parallel along the Z-axis in the display coordinate system. The tomographic plane intersects with the outer contour of the display target to form an intersection line, and the intersection line is discretized to be degraded into a plurality of points which are not connected with each other, and the points are called as target characteristic points. The target characteristic points are distributed on the outer contour of the displayed target and have three-dimensional coordinates which belong to a target coordinate system. Taking the X-coordinate and Y-coordinate of each target feature point, dividing by the corresponding scaling factor and rounding (where rounding errors, which may be ignored in the case of sufficiently small laser array row-column spacing), to obtain the corresponding coordinates of the point in the display coordinate system. The coordinates are integers called the display coordinates of the target feature point that exactly correspond to the point of intersection of the beams emitted by the two-dimensional array of lasers.
In the embodiment of the present disclosure, the volumetric 3D object tomographic encoding unit acquires the display plane Z coordinate (corresponding to the number of rows of the second laser array unit 2) at each of the aforementioned tomographic steps, and the display coordinates of all object feature points formed at the step, as tomographic encoding data of the volumetric 3D object, and records the tomographic encoding data.
In the embodiment of the present disclosure, the laser array decoding control unit takes the tomographic coded data of the 3D volume target as input, and controls whether each laser in the two laser two-dimensional arrays emits or not, so as to complete the display of the 3D volume target. Reading in the chromatographic coded data of the 1 st chromatographic step, and according to the X-Y coordinates of all target characteristic points generated by the chromatographic step in a display coordinate system, turning on corresponding lasers on the first laser array unit 1 to emit light beams, wherein sub-lasers on the first laser array unit 1 which are not on the X-Y coordinates of the target characteristic points are kept in a closed state. At the same time, all the sub-lasers in the 1 st row on the second laser array unit 2 are all turned on. The result of the intersection of these two sets of beams is exactly the profile of layer 1 after the target tomography. After keeping the state for a certain time, the two laser arrays are closed. And then reading the chromatographic coded data of the 2 nd chromatographic step, and according to the X-Y coordinates of all target characteristic points generated by the chromatographic step in a display coordinate system, turning on corresponding lasers on the first laser array unit 1 to emit light beams, wherein the lasers on the X-Y coordinates where the target characteristic points are not located on the first laser array unit 1 are kept in a closed state. At the same time, all sub-lasers in row 2 on the second laser array unit 2 are all turned on. The contour of layer 2 after the target tomography is shown. And repeating the steps until all the target characteristic points generated in the last chromatographic step are displayed, returning to the data in the 1 st chromatographic step, and restarting the cycle.
In the embodiment of the present disclosure, in order to fully utilize the physiological characteristics of human eyes and make the appearance of the display object more stable, smooth and natural, the speed of the circulation needs to be kept at a high level. A typical value here is 100Hz, i.e. 100 cycles per second.
Based on the same inventive concept, the present disclosure further provides an energy efficient body 3D display method, which is applied to the energy efficient body 3D display device of the first aspect and the control system of the energy efficient body 3D display device of the second aspect, and the method includes that the body 3D object tomographic encoding unit outputs tomographic encoding data of a body 3D display object to the laser array decoding control unit; the laser array decoding control unit controls the corresponding sub-lasers in the first laser array unit 1 and the second laser array unit 2 to be started according to the chromatography coding data so as to display data of each layer one by one; the laser emitted by the first laser array unit and the laser emitted by the second laser array unit are intersected with the up-conversion luminescent particles in the up-conversion luminescent unit; the up-conversion luminescent particles in the up-conversion luminescent unit emit visible light according to laser intersection.
In the embodiment of the disclosure, the chromatography encoding data is encoding data of each layer of a volume 3D display target, and point cloud data is hierarchically arranged, where the number of layers is less than or equal to the number of rows or columns of the array unit.
In the embodiment of the present disclosure, controlling the first laser array unit 1 and the second laser array unit 2 to display data of each layer one by one according to the tomographic coding data specifically includes controlling the corresponding sub-lasers in the first laser array unit 1 to emit laser light by analyzing a surface coordinate of a body 3D display target in the first layer of tomographic coding data; controlling a first row of sub-lasers parallel to the first laser array unit 1 in the second laser array unit 2 to emit laser; controlling the first laser array unit 1 and the second laser array unit 2 to be closed; controlling the corresponding sub-lasers in the first laser array unit 1 to emit laser by analyzing the surface coordinates of the volume 3D display target in the second layer analytic encoding data; controlling a second line of sub-lasers in the second laser array unit 2, which is parallel to the first laser array unit 1, to emit laser; controlling the first laser array unit 1 and the second laser array unit 2 to be closed; sequentially analyzing the analytic coded data of the Nth layer, and controlling the first laser array unit 1 and the second laser array unit 2 to emit laser to finish the Nth layer display of the 3D target; and repeating the steps after the whole body 3D object is displayed so as to continuously display the body 3D object.
In an embodiment of the present disclosure, emitting visible light by the upconversion luminescent particles according to laser intersection in the upconversion luminescent unit includes: and emitting visible light to form the Nth layer of the 3D target to be displayed by the Nth layer at the intersection of the emergent laser of the corresponding sub-laser in the first laser array unit and the emergent laser of the Nth row of sub-lasers parallel to the first laser array unit in the second laser array unit.
It is understood that "a plurality" in this disclosure means two or more, and other words are analogous. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship. The singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It will be further understood that the terms "first," "second," and the like, are used to describe various information and should not be limited by these terms. These terms are only used to distinguish one type of information from another and do not denote a particular order or importance. Indeed, the terms "first," "second," and the like are fully interchangeable. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure.
It will be further understood that the terms "central," "longitudinal," "lateral," "front," "rear," "upper," "lower," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present embodiment and to simplify the description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation.
It is further understood that, unless otherwise specified, "connected" includes direct connections between the two without other elements and indirect connections between the two with other elements.
It is further to be understood that while operations are depicted in the drawings in a particular order, this is not to be understood as requiring that such operations be performed in the particular order shown or in serial order, or that all illustrated operations be performed, to achieve desirable results. In certain environments, multitasking and parallel processing may be advantageous.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (10)
1. A high performance bulk 3D display device, comprising:
the device comprises a first laser array unit, a second laser array unit and an up-conversion light-emitting unit; wherein,
the first laser array unit and the second laser array unit are both a grid-shaped laser array formed by a plurality of sub lasers, and the sub lasers of the first laser array unit and the second laser array unit have the same size;
the first laser array unit and the second laser array are respectively provided with a first end line parallel to the row of the grid-shaped laser array and a second end line parallel to the column of the grid-shaped laser array;
the first end line of the first laser array unit and the first end line of the second laser array unit are arranged in parallel, and the second end line of the first laser array unit and the second end line of the second laser array unit are arranged in the same plane and form a certain angle;
the emergent lasers of the sub lasers of the first laser array unit and the emergent lasers of the sub lasers of each line of the second laser array unit form a planar lattice point-shaped intersection point in space respectively;
the up-conversion light-emitting unit is arranged in a space formed by the light emitting surfaces of the first laser array unit and the second laser array unit.
2. The high performance body 3D display device according to claim 1, wherein the first laser array unit and the second laser array unit have the same number of columns of the grid-shaped laser array.
3. The high performance volumetric 3D display device of claim 1, wherein the upconversion luminescent unit comprises a transparent solution having upconversion luminescent particles dissolved therein and a transparent container for containing the transparent solution.
4. The high performance body 3D display device according to claim 3, wherein the upconversion luminescent particle radiates energy outward at visible frequencies upon intersection of two different incoming infrared lasers.
5. The high performance body 3D display device as claimed in claim 1, wherein the first laser array unit and the second laser array unit emit laser beams having wavelengths of 800nm-1600 nm.
6. A high performance bulk 3D display device control system, comprising: the high performance bulk 3D display device, the bulk 3D object-tomographic encoding unit, the laser array decoding control unit, as recited in any one of claims 1-5; the body 3D target chromatography coding unit is electrically connected with the laser array decoding control unit, and the laser array decoding control unit is respectively and electrically connected with the first laser array unit and the second laser array unit.
7. A method for high performance bulk 3D display, applied to the high performance bulk 3D display apparatus according to any one of claims 1-5 and the control system of the high performance bulk 3D display apparatus according to claim 6, the method comprising the bulk 3D display control step of:
s1, the volume 3D object tomographic encoding unit outputting tomographic encoding data of the volume 3D display object to the laser array decoding control unit;
s2, the laser array decoding control unit controls the corresponding sub-lasers in the first laser array unit and the second laser array unit to be started to display data of each layer one by one according to the chromatography coding data;
s3, the laser beams emitted from the first laser array unit and the second laser array unit meet the upconversion luminescent particles in the upconversion luminescent unit;
s4, the upconversion luminescent particles in the upconversion luminescent unit emit visible light by laser intersection.
8. The high performance bulk 3D display method according to claim 7, wherein the layered encoded data in step S1 is encoded data of each layer of the bulk 3D display target, and the number of layers is less than or equal to the number of rows of the array units.
9. The high performance bulk 3D display method according to claim 8, wherein the step S2 of controlling the first laser array unit and the second laser array unit to display each layer of data one by one according to the tomographic encoding data comprises the steps of:
s21, controlling the corresponding sub lasers in the first laser array unit to emit laser by analyzing the surface coordinates of the volume 3D display target in the first layer of chromatographic encoding data;
s22, simultaneously with the step S21, controlling the first row of sub-lasers parallel to the first laser array unit in the second laser array unit to emit laser light;
s23, controlling the first laser array unit and the second laser array unit to stop emitting laser light;
s24, controlling the corresponding sub-lasers in the first laser array unit to emit laser by analyzing the surface coordinates of the volume 3D display target in the second layer analytic encoding data;
s25, controlling the second row sub-lasers parallel to the first laser array unit in the second laser array unit to emit laser beams simultaneously with the step S24;
s26, controlling the first laser array unit and the second laser array unit to stop emitting laser light;
s27, sequentially analyzing the analytic coded data of the Nth layer, and controlling the Nth row of sub-lasers of the first laser array unit and the second laser array unit to emit laser to complete the Nth layer display of the 3D target;
and S28, repeating the steps S21-S27 to continuously display the volume 3D object after the display of the volume 3D object is completed, wherein the repetition frequency is required to meet the requirement of 'persistence of vision' of human eyes, namely, the time for completing the display of the volume 3D object (steps S21-S27) is not longer than 1/30 seconds.
10. The method for displaying high performance bulk 3D according to claim 8, wherein the step S4, wherein the emitting visible light by the upconversion luminescent particles in the upconversion luminescent unit according to laser intersection comprises: and emitting visible light to form the Nth layer of the 3D target to display by the upconversion particles at the intersection of the emergent laser of the corresponding sub-laser in the first laser array unit and the emergent laser of the Nth row of sub-lasers parallel to the first laser array unit in the second laser array unit.
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