CN209803562U - Projection device based on volume holographic multiplexing technology - Google Patents
Projection device based on volume holographic multiplexing technology Download PDFInfo
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- CN209803562U CN209803562U CN201920447217.5U CN201920447217U CN209803562U CN 209803562 U CN209803562 U CN 209803562U CN 201920447217 U CN201920447217 U CN 201920447217U CN 209803562 U CN209803562 U CN 209803562U
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Abstract
The utility model discloses a projection arrangement based on volume holographic multiplexing technique, including the projection arrangement body, the projection arrangement body includes that the top is the install bin and the projecting apparatus of setting in the install bin that the opening set up, and the top of install bin is equipped with holographic display screen, holographic display screen comprises four trapezoidal transparent plates, one side fixed mounting of install bin has driving motor, and driving motor's output shaft extends to in the install bin and fixed mounting has a bevel gear, rotates on the bottom inner wall of install bin and installs first screw rod. The utility model relates to a rationally, convenient operation is convenient for adjust the inclination of holographic display screen, prevents that the bulge of holographic display screen from being caused the damage by the collision in the transportation, and the projecting apparatus aligns with the focus all the time when adjusting, and the focus that prevents the projecting apparatus when adjusting the angle of holographic display screen takes place to squint and influences the demonstration of image, satisfies the user demand.
Description
Technical Field
The utility model relates to a projection arrangement technical field especially relates to a projection arrangement based on volume holographic multiplexing technique.
Background
The holographic projection technology, also called virtual imaging technology, is a technology for recording and reproducing a real three-dimensional image of an object by utilizing interference and diffraction principles, can generate a three-dimensional aerial illusion, can also enable the illusion to be generated with a performer to complete performance, generates an impressive performance effect, is suitable for product exhibition, automobile clothing release, stage programs, bar entertainment, place projection and the like, and the existing projection device based on the volume holographic multiplexing technology mainly comprises an installation box, a holographic display screen and a projector, displays the image on the holographic display screen through the operation of the projector, and the projection of the holographic display screen in the existing projection device based on the volume holographic multiplexing technology is arranged above the installation box, so that the transportation is inconvenient, the phenomenon that the holographic display screen is damaged easily occurs in the transportation process, and the use requirements cannot be met, therefore we propose a projection device based on volume holographic multiplexing technology to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art, and providing a projection device based on volume holographic multiplexing technology.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
The projection device based on the volume holographic multiplexing technology comprises a projection device body, wherein the projection device body comprises an installation box and a projector, the top of the installation box is provided with a holographic display screen, the holographic display screen is composed of four trapezoidal transparent plates, a driving motor is fixedly installed on one side of the installation box, an output shaft of the driving motor extends into the installation box and is fixedly provided with a first bevel gear, a first screw rod is rotatably installed on the inner wall of the bottom of the installation box, two first positioning rods are fixedly installed on the inner wall of the bottom of the installation box, the first screw rod and the two first positioning rods are arranged in a triangular mode, a transverse plate is sleeved on the first screw rod in a threaded mode, the top of the transverse plate and the bottom of the projector are fixedly installed, the transverse plate is slidably sleeved on the two first positioning rods, and a second bevel gear is fixedly sleeved on the first screw rod, the second bevel gear is meshed with the first bevel gear, the same mounting plate is fixedly mounted on the inner walls of four sides of the mounting box, a first groove is formed in the top of the mounting plate, second screw rods are rotatably mounted on the inner walls of two sides of the first groove, the ends, close to each other, of the two second screw rods are fixedly connected, the thread turning directions of the two second screw rods are opposite, third screw rods are rotatably mounted on the inner walls of the other two sides of the first groove, moving rods are respectively sleeved on the third screw rods and the second screw rods in a threaded manner, second positioning rods are fixedly mounted on the inner walls of four sides of the first groove, the moving rods are slidably sleeved on the corresponding second positioning rods, slide blocks are respectively slidably mounted on the sides, far away from each other, of the four trapezoidal transparent plates, the top ends of the moving rods extend to the upper part of the mounting box and are hinged with the bottoms of the corresponding slide blocks, a chain wheel is fixedly sleeved on one of the two second, the chain wheel is characterized in that the chain wheels are in transmission connection with the same chain, a screw rod in the two second screw rods is fixedly sleeved with a third bevel gear, the two third screw rods are close to one end of each other and are fixedly provided with a fourth bevel gear, the two fourth bevel gears are meshed with the third bevel gear, the two second screw rods and the two third screw rods are fixedly sleeved with bearings, the tops of the four bearings are fixedly provided with the same ring, the center point of the ring is matched with the projector, and the bottoms of the four trapezoidal transparent plates extend into the installation box and are rotatably installed with the tops of the ring.
Preferably, one side of two movable rods of the four movable rods is provided with a first threaded hole, and the first threaded hole is in threaded connection with the corresponding second screw.
Preferably, one side of the other two moving rods in the four moving rods is provided with a second threaded hole, and the second threaded hole is in threaded connection with the corresponding third screw.
preferably, a third threaded hole is formed in the top of the transverse plate and is in threaded connection with the first screw rod.
Preferably, one side of the moving rod is provided with a first square hole, and the side wall of the first square hole is in sliding connection with the outer side of the corresponding second positioning rod.
Preferably, one side of the trapezoidal transparent plate is fixedly provided with a sliding rail, the top of the sliding block is provided with a sliding groove, and the sliding groove is connected with the corresponding sliding rail in a sliding manner.
Compared with the prior art, the beneficial effects of the utility model are that:
Through the matching of the installation box, the trapezoidal transparent plate, the driving motor, the circular ring, the first screw rod, the transverse plate, the first positioning rod, the first bevel gear, the second bevel gear, the chain wheel, the chain, the installation plate, the first groove, the second screw rod, the moving rod, the third bevel gear and the fourth bevel gear with the bearing, the driving motor is started, the output shaft of the driving motor drives the second bevel gear to rotate through the first bevel gear, the second bevel gear drives the first screw rod to rotate, under the action of the third threaded hole, the first screw rod rotates to drive the transverse plate to move upwards, the transverse plate drives the projector to move upwards, the output shaft of the driving motor drives one chain wheel of the two chain wheels to rotate simultaneously, one chain wheel drives the other chain wheel to rotate through the chain, the other chain wheel drives the second screw rod fixedly connected with the chain wheel to rotate, the second screw rod rotates to drive the other second screw rod to rotate simultaneously, under the effect of first screw hole, the second screw rod rotates and drives the carriage release lever position that corresponds and remove, a screw rod drives fourth bevel gear through third bevel gear and rotates, fourth bevel gear drives the third screw rod that corresponds and rotates, under the effect of second screw hole, third screw rod rotates and drives the carriage release lever position that corresponds and remove, drive the slider position that corresponds and remove and rotate when the carriage release lever removes, make the slider slide in one side of the trapezoidal transparent plate that corresponds, the slider drives the trapezoidal transparent plate that corresponds and rotates, make the inclination of trapezoidal transparent plate change, when two adjacent trapezoidal transparent plates contact, stop driving motor, and then the regulation of the inclination of holographic display screen has been accomplished, and guarantee that the projecting apparatus keeps focusing with holographic display screen always when holographic display screen inclination changes.
The utility model relates to a rationally, convenient operation is convenient for adjust the inclination of holographic display screen, prevents that the bulge of holographic display screen from being caused the damage by the collision in the transportation, and the projecting apparatus aligns with the focus all the time when adjusting, and the focus that prevents the projecting apparatus when adjusting the angle of holographic display screen takes place to squint and influences the demonstration of image, satisfies the user demand.
Drawings
Fig. 1 is a schematic structural diagram of a projection apparatus based on volume holographic multiplexing technology according to the present invention;
Fig. 2 is a schematic sectional structure view of a portion a in fig. 1.
In the figure: the device comprises an installation box 1, a trapezoidal transparent plate 2, a driving motor 3, a circular ring 4, a first screw rod 5, a transverse plate 6, a first positioning rod 7, a first bevel gear 8, a second bevel gear 9, a chain wheel 10, a chain 11, an installation plate 12, a first groove 13, a second screw rod 14, a moving rod 15, a third bevel gear 16, a fourth bevel gear 17 and a bearing 18.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-2, a projection device based on volume holographic multiplexing technology comprises a projection device body, the projection device body comprises an installation box 1 with an opening at the top and a projector arranged in the installation box 1, a holographic display screen is arranged above the installation box 1 and is composed of four trapezoidal transparent plates 2, a driving motor 3 is fixedly arranged at one side of the installation box 1, an output shaft of the driving motor 3 extends into the installation box 1 and is fixedly provided with a first bevel gear 8, a first screw 5 is rotatably arranged on the inner wall of the bottom of the installation box 1, two first positioning rods 7 are fixedly arranged on the inner wall of the bottom of the installation box 1, the first screw 5 and the two first positioning rods 7 are arranged in a triangular shape, a transverse plate 6 is sleeved on the first screw 5 in a threaded manner, the top of the transverse plate 6 is fixedly arranged with the bottom of the projector, the transverse plate 6 is slidably sleeved on the two first positioning rods 7, a second bevel gear 9 is fixedly sleeved on the first screw 5, the second bevel gear 9 is meshed with the first bevel gear 8, the same mounting plate 12 is fixedly mounted on the inner walls of four sides of the mounting box 1, a first groove 13 is formed in the top of the mounting plate 12, second screws 14 are rotatably mounted on the inner walls of two sides of the first groove 13, the ends, close to each other, of the two second screws 14 are fixedly connected, the thread turning directions of the two second screws 14 are opposite, third screws are rotatably mounted on the inner walls of the other two sides of the first groove 13, moving rods 15 are respectively sleeved on the third screws and the second screws 14 in a threaded manner, second positioning rods are fixedly mounted on the inner walls of four sides of the first groove 13, the moving rods 15 are slidably sleeved on the corresponding second positioning rods, sliders are slidably mounted on the sides, far away from each other, of the four trapezoidal transparent plates 2, the top ends of the moving rods 15 extend to the upper part of the mounting box 1 and are hinged with the bottoms of, a chain wheel 10 is fixedly sleeved on one second screw 14 of the two second screws 14 and an output shaft of the driving motor 3, the two chain wheels 10 are in transmission connection with the same chain 11, a third bevel gear 16 is fixedly sleeved on one screw 14 of the two second screws 14, fourth bevel gears 17 are fixedly installed at the ends, close to each other, of the two third screws, the two fourth bevel gears 17 are meshed with the third bevel gears 16, bearings 18 are fixedly sleeved on the two second screws 14 and the two third screws, the tops of the four bearings 18 are fixedly provided with the same ring 4, the center point of the ring 4 is matched with the projector, the bottoms of the four trapezoidal transparent plates 2 extend into the installation box 1 and are rotatably installed with the tops of the ring 4, and the installation box 1, the trapezoidal transparent plates 2, the driving motor 3, the ring 4, the first screws 5 and the transverse plate 6 are arranged in a sleeved mode, The first positioning rod 7, the first bevel gear 8, the second bevel gear 9, the chain wheels 10, the chain 11, the mounting plate 12, the first groove 13, the second screw 14, the moving rod 15, the third bevel gear 16 and the fourth bevel gear 17 are matched with a bearing 18, the driving motor 3 is started, an output shaft of the driving motor 3 drives the second bevel gear 9 to rotate through the first bevel gear 8, the second bevel gear 9 drives the first screw 5 to rotate, under the action of a third threaded hole, the first screw 5 rotates to drive the transverse plate 6 to move upwards, the transverse plate 6 drives the projector to move upwards, the output shaft of the driving motor 3 simultaneously drives one chain wheel 10 of the two chain wheels 10 to rotate, one chain wheel 10 drives the other chain wheel 10 to rotate through the chain 11, the other chain wheel 10 drives one second screw 14 fixedly connected with the chain wheel 10 to rotate, and one second screw 14 rotates simultaneously to drive the other second screw 14 to rotate, under the action of the first threaded hole, the second screw 14 rotates to drive the corresponding movable rod 15 to move, one screw 14 drives the fourth bevel gear 17 to rotate through the third bevel gear 16, the fourth bevel gear 17 drives the corresponding third screw to rotate, under the action of the second threaded hole, the third screw rotates to drive the corresponding movable rod 15 to move, the movable rod 15 drives the corresponding slide block to move and rotate while moving, so that the slide block slides on one side of the corresponding trapezoidal transparent plate 2, the slide block drives the corresponding trapezoidal transparent plate 2 to rotate, the inclination angle of the trapezoidal transparent plate 2 is changed, when two adjacent trapezoidal transparent plates 2 are in contact, the driving motor 3 is stopped, the adjustment of the inclination angle of the holographic display screen is further completed, and the projector is ensured to be always kept in focus with the holographic display screen while the inclination angle of the holographic display screen is changed, the utility model relates to a rationally, convenient operation is convenient for adjust the inclination of holographic display screen, prevents that the bulge of holographic display screen from being caused the damage by the collision in the transportation, and the projecting apparatus aligns with the focus all the time when adjusting, and the focus that prevents the projecting apparatus when adjusting the angle of holographic display screen takes place to squint and influences the demonstration of image, satisfies the user demand.
the utility model discloses in, first screw hole has been seted up to one side of two carriage release levers 15 among four carriage release levers 15, first screw hole and the 14 threaded connection of second screw rod that correspond, second screw hole has been seted up to one side of two other carriage release levers 15 among four carriage release levers 15, second screw hole and the third screw rod threaded connection that corresponds, third screw hole has been seted up at the top of diaphragm 6, third screw hole and 5 threaded connection of first screw rod, first square hole has been seted up to one side of carriage release lever 15, the lateral wall of first square hole and the outside sliding connection of the second locating lever that corresponds, one side fixed mounting of trapezoidal transparent plate 2 has the slide rail, the spout has been seted up at the top of slider, spout and the corresponding slide rail sliding connection, through install bin 1, trapezoidal transparent plate 2, driving motor 3, ring 4, first screw rod 5, diaphragm 6, first locating lever 7, first bevel gear 8, The second bevel gear 9, the chain wheels 10, the chain 11, the mounting plate 12, the first groove 13, the second screw 14, the moving rod 15, the third bevel gear 16 and the fourth bevel gear 17 are matched with a bearing 18, the driving motor 3 is started, an output shaft of the driving motor 3 drives the second bevel gear 9 to rotate through the first bevel gear 8, the second bevel gear 9 drives the first screw 5 to rotate, under the action of a third threaded hole, the first screw 5 rotates to drive the transverse plate 6 to move upwards, the transverse plate 6 drives the projector to move upwards, the output shaft of the driving motor 3 rotates and simultaneously drives one chain wheel 10 of the two chain wheels 10 to rotate, one chain wheel 10 drives the other chain wheel 10 to rotate through the chain 11, the other chain wheel 10 drives one second screw 14 fixedly connected with the chain wheel to rotate, and the other second screw 14 rotates simultaneously, under the action of the first threaded hole, the second screw 14 rotates to drive the corresponding movable rod 15 to move, one screw 14 drives the fourth bevel gear 17 to rotate through the third bevel gear 16, the fourth bevel gear 17 drives the corresponding third screw to rotate, under the action of the second threaded hole, the third screw rotates to drive the corresponding movable rod 15 to move, the movable rod 15 drives the corresponding slide block to move and rotate while moving, so that the slide block slides on one side of the corresponding trapezoidal transparent plate 2, the slide block drives the corresponding trapezoidal transparent plate 2 to rotate, the inclination angle of the trapezoidal transparent plate 2 is changed, when two adjacent trapezoidal transparent plates 2 are in contact, the driving motor 3 is stopped, the adjustment of the inclination angle of the holographic display screen is further completed, and the projector is ensured to be always kept in focus with the holographic display screen while the inclination angle of the holographic display screen is changed, the utility model relates to a rationally, convenient operation is convenient for adjust the inclination of holographic display screen, prevents that the bulge of holographic display screen from being caused the damage by the collision in the transportation, and the projecting apparatus aligns with the focus all the time when adjusting, and the focus that prevents the projecting apparatus when adjusting the angle of holographic display screen takes place to squint and influences the demonstration of image, satisfies the user demand.
The working principle is as follows: when the holographic display screen is used, when the inclination angle of the holographic display screen needs to be adjusted, the driving motor 3 is started, the output shaft of the driving motor 3 drives the first bevel gear 8 to rotate, the first bevel gear 8 is meshed with the second bevel gear 9, the first bevel gear 8 rotates to drive the second bevel gear 9 to rotate, the second bevel gear 9 drives the first screw rod 5 to rotate, under the action of a third threaded hole formed in the transverse plate 6, the first screw rod 5 rotates to drive the transverse plate 6 to move upwards, so that the transverse plate 6 slides upwards on the first positioning rod 7, the transverse plate 6 simultaneously drives the two sliding blocks to slide in corresponding sliding grooves, meanwhile, the transverse plate 6 drives the projector to move upwards, the output shaft of the driving motor 3 simultaneously drives one chain wheel 10 of the two chain wheels 10 to rotate, and one chain wheel 10 drives the other chain wheel 10 to rotate through the chain 11, another sprocket 10 drives a second screw 14 fixedly connected with the sprocket to rotate, one second screw 14 rotates and drives another second screw 14 to rotate, under the action of a first threaded hole formed on the moving rod 15, the second screw 14 rotates and drives the corresponding moving rod 15 to move, at the same time, one screw 14 drives a third bevel gear 16 to rotate, because the third bevel gear 16 is simultaneously meshed with two fourth bevel gears 17, the third bevel gear 16 rotates and drives the fourth bevel gear 17 to rotate, the fourth bevel gear 17 drives the corresponding third screw to rotate, under the action of a second threaded hole formed on the moving rod 15, the third screw rotates and drives the corresponding moving rod 15 to move, so that the four moving rods 15 simultaneously slide on the corresponding second positioning rods, and the moving rod 15 moves and drives the corresponding slide block to move and rotate simultaneously, make the slider slide on the slide rail that corresponds, the slide rail that drives the correspondence when the slider pivoted rotates, the slide rail drives trapezoidal transparent plate 2 that corresponds and rotates, make the inclination of trapezoidal transparent plate 2 change, when two adjacent trapezoidal transparent plates 2 contact, stop driving motor 3, and then the regulation of the inclination of holographic display screen has been accomplished, otherwise reverse start driving motor 3, make four trapezoidal transparent plates 2 accomodate in the install bin 1, prevent that the bulge of holographic display screen in the transportation from being collided and causing the damage, and the while of regulation projecting apparatus aligns with the focus all the time, prevent that the focus of projecting apparatus from taking place the demonstration that the skew influences the image when adjusting the angle of holographic display screen.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. projection arrangement based on holographic multiplexing technique of volume, including the projection arrangement body, the projection arrangement body includes that the top is installation box (1) and the projecting apparatus of setting in installation box (1) that the opening set up, and the top of installation box (1) is equipped with holographic display screen, its characterized in that, holographic display screen comprises four trapezoidal transparent plates (2), one side fixed mounting of installation box (1) has driving motor (3), and the output shaft of driving motor (3) extends to in installation box (1) and fixed mounting has first bevel gear (8), rotates on the bottom inner wall of installation box (1) and installs first screw rod (5), and fixed mounting has two first locating rods (7) on the bottom inner wall of installation box (1), and first screw rod (5) are the triangle-shaped setting with two first locating rods (7), and threaded sleeve is equipped with diaphragm (6) on first screw rod (5), the top of the transverse plate (6) is fixedly installed with the bottom of the projector, the transverse plate (6) is slidably sleeved on the two first positioning rods (7), the first screw (5) is fixedly sleeved with a second bevel gear (9), the second bevel gear (9) is meshed with the first bevel gear (8), the inner walls of the four sides of the installation box (1) are fixedly provided with a same installation plate (12), the top of the installation plate (12) is provided with a first groove (13), the inner walls of the two sides of the first groove (13) are respectively and rotatably provided with a second screw (14), the ends of the two second screws (14) close to each other are fixedly connected, the screw rotating directions of the two second screws (14) are opposite, the inner walls of the other two sides of the first groove (13) are respectively and rotatably provided with a third screw, the third screw and the second screw (14) are respectively and rotatably sleeved with a moving rod (15), the inner walls of the four sides of the first groove (13) are respectively and fixedly provided with a second positioning rod, a moving rod (15) is sleeved on the corresponding second positioning rod in a sliding manner, a sliding block is arranged on one side, away from each other, of each of the four trapezoidal transparent plates (2) in a sliding manner, the top end of the moving rod (15) extends to the upper portion of the installation box (1) and is hinged to the bottom of the corresponding sliding block, chain wheels (10) are fixedly sleeved on one second screw (14) of the two second screws (14) and an output shaft of the driving motor (3), the two chain wheels (10) are in transmission connection with the same chain (11), a third bevel gear (16) is fixedly sleeved on one screw (14) of the two second screws (14), a fourth bevel gear (17) is fixedly installed at one end, close to each other, of the two third screws, the two fourth bevel gears (17) are meshed with the third bevel gear (16), and bearings (18) are fixedly sleeved on the two second screws (14) and the two third screws, the top of four bearings (18) is fixedly provided with the same circular ring (4), the center point of the circular ring (4) is matched with the projector, and the bottoms of the four trapezoidal transparent plates (2) extend into the installation box (1) and are rotatably installed with the top of the circular ring (4).
2. The projection device based on volume holographic multiplexing technique of claim 1, wherein one side of two moving rods (15) of the four moving rods (15) is provided with a first threaded hole, and the first threaded hole is in threaded connection with the corresponding second screw (14).
3. The projection device based on volume holographic multiplexing technique of claim 1, wherein one side of the other two moving rods (15) of the four moving rods (15) is provided with a second threaded hole, and the second threaded hole is in threaded connection with a corresponding third screw.
4. The projection device based on the volume holographic multiplexing technology of claim 1, wherein a third threaded hole is formed at the top of the horizontal plate (6), and the third threaded hole is in threaded connection with the first screw (5).
5. The projection apparatus based on volume holographic multiplexing technique of claim 1, wherein one side of the moving rod (15) is opened with a first square hole, and the side wall of the first square hole is slidably connected with the outer side of the corresponding second positioning rod.
6. The projection device based on volume holographic multiplexing technology of claim 1, wherein one side of the trapezoidal transparent plate (2) is fixedly provided with a slide rail, the top of the slide block is provided with a slide groove, and the slide groove is slidably connected with the corresponding slide rail.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201920447217.5U CN209803562U (en) | 2019-04-03 | 2019-04-03 | Projection device based on volume holographic multiplexing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447217.5U CN209803562U (en) | 2019-04-03 | 2019-04-03 | Projection device based on volume holographic multiplexing technology |
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| CN209803562U true CN209803562U (en) | 2019-12-17 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140733A (en) * | 2019-12-24 | 2020-05-12 | 江苏理工学院 | Screen-adjustable playing device based on holographic image technology |
| CN111198488A (en) * | 2019-12-24 | 2020-05-26 | 江苏理工学院 | Mobile phone screen playing device based on holographic image technology |
| CN111739448A (en) * | 2020-07-29 | 2020-10-02 | 深圳宏伟时代自控有限公司 | Intelligent building demonstrates and uses 3D projection arrangement with adjustable sand table |
| CN113281980A (en) * | 2021-05-31 | 2021-08-20 | 深圳市汇林装饰工程有限公司 | 3D can mutual three-dimensional virtual reality display device |
-
2019
- 2019-04-03 CN CN201920447217.5U patent/CN209803562U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111140733A (en) * | 2019-12-24 | 2020-05-12 | 江苏理工学院 | Screen-adjustable playing device based on holographic image technology |
| CN111198488A (en) * | 2019-12-24 | 2020-05-26 | 江苏理工学院 | Mobile phone screen playing device based on holographic image technology |
| CN111140733B (en) * | 2019-12-24 | 2021-09-28 | 江苏理工学院 | Screen-adjustable playing device based on holographic image technology |
| CN111198488B (en) * | 2019-12-24 | 2021-09-28 | 江苏理工学院 | Mobile phone screen playing device based on holographic image technology |
| CN111739448A (en) * | 2020-07-29 | 2020-10-02 | 深圳宏伟时代自控有限公司 | Intelligent building demonstrates and uses 3D projection arrangement with adjustable sand table |
| CN113281980A (en) * | 2021-05-31 | 2021-08-20 | 深圳市汇林装饰工程有限公司 | 3D can mutual three-dimensional virtual reality display device |
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