CN206601534U - Virtual three-dimensional imaging device with 360 ° of visual effects - Google Patents
Virtual three-dimensional imaging device with 360 ° of visual effects Download PDFInfo
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- CN206601534U CN206601534U CN201720332287.7U CN201720332287U CN206601534U CN 206601534 U CN206601534 U CN 206601534U CN 201720332287 U CN201720332287 U CN 201720332287U CN 206601534 U CN206601534 U CN 206601534U
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- virtual
- convex lens
- imaging device
- dimensional imaging
- holographic projections
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Abstract
The utility model discloses a kind of virtual three-dimensional imaging device with 360 ° of visual effects, including projection arrangement, convex lens and the line holographic projections showcase in multi-prism taper；The projection arrangement is located at the focal point of the convex lens side；Each of the line holographic projections showcase is that size identical is trapezoidal sideways；The convex lens, which are used to the image animation that the projection arrangement is launched being projected on the line holographic projections showcase, forms 360 ° of virtual three-dimensionals imagings.The image animation that virtual three-dimensional imaging device of the present utility model launches projection arrangement is projected on line holographic projections showcase to be formed by convex lens visually has more flourishing effect, more easily reach the virtual image of the advertising results of higher degree, all it is that 3-dimensional image shows in terms of 360 ° of any angles of line holographic projections showcase, third dimension is strong, can be to spectators with novel, mysterious visual impact.
Description
Technical field
The utility model is related to display and demonstration technical field, and in particular to a kind of virtual three-dimensional with 360 ° of visual effects
Imaging device.
Background technology
In present multimedia show stage property industry, except the audio-video media such as TV, broadcast, film and newspaper, miscellaneous
It is main beyond the stationery carrier such as will, it is also that advertising carrier the most familiar to people is lamp box, advertisement machine, showcase.Showcase
Miscellaneous showpiece is put available for display, the appearance information of showpiece is shown to visitor.Showcase is common in museum, exhibition
Caused to damage or polluted by artificial contact prevented also from showpiece after shop or some luxury goods shops etc., displaying showpiece.
The showcase of prior art is mainly separated showpiece with visitor using transparent glass, while will not hinder visit again
Person is viewed and admired.But this kind of showcase lacks multimedia show function, it is impossible to which showpiece is introduced.And showpiece is merely able in itself
It is shown by the illumination of showcase, bandwagon effect is unsatisfactory.
Utility model content
In view of this, technical problem to be solved in the utility model is in view of the shortcomings of the prior art and defect, to carry
There is visual flourishing effect, the measured 360 ° of virtual three-dimensional imaging devices of virtual image matter for one kind.
A kind of virtual three-dimensional imaging device with 360 ° of visual effects, including projection arrangement, convex lens and in polygonal pyramid
The line holographic projections showcase of shape；The projection arrangement is located at the focal point of the convex lens side；The line holographic projections showcase it is each
Individual side is that size identical is trapezoidal；The convex lens are described for the image animation that the projection arrangement is launched to be projected in
360 ° of virtual three-dimensional imagings are formed on line holographic projections showcase.
Further, each of the line holographic projections showcase is phantom imaging glass sideways.
Further, each of the line holographic projections showcase is sideways by acrylic board and the holographic film that is attached on acrylic board
Composition.
Further, the projection arrangement, the convex lens and the line holographic projections showcase are respectively positioned on straight line, institute
Line holographic projections showcase is stated positioned at the convex lens other side.
Further, the virtual three-dimensional imaging device also includes speculum, the projection arrangement, the convex lens and institute
State speculum to be respectively positioned on straight line, the speculum is located at the convex lens other side, the speculum is used for institute
The image animation for stating projection arrangement transmitting is reflected in 360 ° of virtual three-dimensionals imagings of formation on the line holographic projections showcase.
Further, the convex lens are Fresnel Lenses.
Further, the virtual three-dimensional imaging device also includes transmission device, and the convex lens are arranged on the transmission
On device, the transmission device is used to drive the convex lens displacement.
Further, the virtual three-dimensional imaging device also includes control system, and the control system is filled with the transmission
Put connection.
Further, the control system includes wireless transport module.
Further, the control system also includes display module and Keysheet module.
Compared with prior art, the beneficial effect of the virtual three-dimensional imaging device with 360 ° of visual effects of the present utility model
It is really：
(1) virtual three-dimensional imaging device of the present utility model is made by Pei Poer effect principles and convex lens imaging principle
The image animation of projection arrangement transmitting, which is projected on line holographic projections showcase to be formed, visually has more flourishing effect, it is easier to reach
The virtual image of the advertising results of higher degree, is all that 3-dimensional image shows in terms of 360 ° of any angles of line holographic projections showcase, is stood
Body-sensing is strong, can attract audience attention to spectators with novel, mysterious visual impact, excite spectators to probe into desire, it is possible to rise
The effect of thing popularity is demonstrated to the live popularity of aggregation, intensification visitor impression, raising.In addition, of the present utility model virtual
Good imaging quality, definition and the color also Zhen Dugao of stereopsis, are not in smudgy and ghost problems.
(2) further, virtual three-dimensional imaging device of the present utility model by using speculum light reflex, only
360 ° of visions can be formed in different putting positions by needing the angle of inclination for adjusting speculum that line holographic projections showcase can be achieved
The virtual image of flourishing effect, and ensure good imaging quality.
(3) further, virtual three-dimensional imaging device of the present utility model is by setting transmission device and control system,
When changing the convex lens with different focus, it is not necessary to the position of mobile projector device and line holographic projections showcase, it is only necessary to
The displacement of convex lens is realized by control system control transmission device operation.
To enable above-mentioned purpose of the present utility model, feature and advantage to become apparent, preferred embodiment cited below particularly, and
Coordinate appended accompanying drawing, be described in detail below.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, it will use below required in embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
Fig. 1 is the first structural representation of virtual three-dimensional imaging device of the present utility model；
Second of structural representation of Fig. 2 virtual three-dimensional imaging devices of the present utility model；
The structural representation of the control system of Fig. 3 virtual three-dimensional imaging devices of the present utility model.
Main element symbol description：
1- virtual three-dimensional imaging devices；100- projection arrangements；200- convex lens；300- line holographic projections showcases；310- sides；
320- bottom surfaces；400- speculums；500- transmission devices；510- gears；520- conveyer belts；530- stepper motors；600- controls system
System；610- drive control circuits；620- wireless signal transceiver modules；630- display modules；640- Keysheet modules.
Embodiment
For the ease of understanding the utility model, below with reference to relevant drawings to the virtual three-dimensional with 360 ° of visual effects
Imaging device is described more fully.The preferred embodiment of multi-screen display equipment is given in accompanying drawing.But, regarded with 360 °
Feeling the virtual three-dimensional imaging device of effect can realize in many different forms, however it is not limited to described herein to implement
Example.On the contrary, the purpose for providing these embodiments is to make the disclosure to the virtual three-dimensional imaging device with 360 ° of visual effects
Content is more thorough comprehensive.
Hereinafter, the term " comprising " that can be used in various embodiments of the present utility model or " may include " indicate institute
Disclosed function, operation or the presence of element, and the increase of one or more functions, operation or element is not limited.In addition,
As used in various embodiments of the present utility model, term " comprising ", " having " and its cognate are meant only to represent specific
Feature, numeral, step, operation, element, the combination of component or foregoing item, and it is understood not to exclude one or first
A number of other features, numeral, step, operation, element, the presence of the combination of component or foregoing item increase one or more spies
Levy, numeral, step, operation, element, the possibility of the combination of component or foregoing item.
In various embodiments of the present utility model, statement "or" or " in A or/and B at least one " include row simultaneously
Any combinations of the word gone out or all combinations." A or B " or " in A or/and B at least one " may include A, can for example, statement
Including B or it may include A and B both.
In description of the present utility model, it is to be understood that term " longitudinal direction ", " transverse direction ", " on ", " under ", " preceding ",
The orientation or position relationship of the instruction such as " rear ", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer " be based on
Orientation shown in the drawings or position relationship, are for only for ease of description the utility model and simplify description, rather than indicate or dark
Specific orientation must be had, with specific azimuth configuration and operation by showing the device or element of meaning, therefore it is not intended that right
Limitation of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only used for distinguishing description, and it is not intended that referring to
Show or imply relative importance.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term
State and be not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be
Combined in an appropriate manner in any one or more embodiments or example.
In description of the present utility model, unless otherwise prescribed with restriction, it is necessary to explanation, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be the company of mechanical connection or electrical connection or two element internals
It is logical, can be joined directly together, can also be indirectly connected to by intermediary, for the ordinary skill in the art, can
To understand the concrete meaning of above-mentioned term as the case may be.Unless otherwise defined, all terms (bag being otherwise used herein
Include technical term and scientific terminology) have be generally understood that with various embodiment one skilled in the art of the present utility model
Implication identical implication.The term (term such as limited in the dictionary typically used) be to be interpreted as have with
Situational meaning identical implication in correlative technology field and it will be not construed as with Utopian implication or excessively formal
Implication, unless be clearly defined in various embodiments of the present utility model.
Embodiment
Refering to Fig. 1 and Fig. 2, a kind of virtual three-dimensional imaging device with 360 ° of visual effects of the utility model embodiment
1, including projection arrangement 100, convex lens 200 and the line holographic projections showcase 300 in multi-prism taper.The projection arrangement 100 is located at
The focal point of the side of convex lens 200.The projection arrangement 100 can be enumerated as multimedia projector.The line holographic projections exhibition
Each side 310 of cabinet 300 is that size identical is trapezoidal.
As a kind of exemplary illustration, as shown in Figure 1 or 2, the line holographic projections showcase 300 includes four sides 310,
And each side 310 is in isosceles trapezoid, and it is 40 °~60 ° with the angulation of bottom surface 320 of the line holographic projections showcase 300.
Certainly, the utility model is not intended to limit the quantity of the side 310 of line holographic projections showcase 300, and the line holographic projections showcase 300 may be used also
It is enumerated as including 6 or 8 sides 310 etc. according to actual needs.
As a kind of preferred line holographic projections showcase 300 in the utility model embodiment, the line holographic projections showcase 300
Each side 310 is phantom imaging glass.Phantom imaging glass is the imaging technique based on holographic science and technology, by the holography of object
Image is projected on translucent glass, is produced the three-dimensional perceptions of 3D, is lifted visual effect.As shown in figure 1, the line holographic projections showcase
300 can be enumerated as the tetrapyamid shape (or pyramid shape) by 4 phantom imaging glassy bonds.
It is used as another preferred line holographic projections showcase 300, the line holographic projections showcase 300 in the utility model embodiment
Each side 310 be made up of acrylic board and the holographic film that is attached on the acrylic board.The material of the acrylic board is
Polymethyl methacrylate, its property is stable, and plasticity is strong, transparency height (light transmittance more than 90%), and density is low and intensity
Height, and it has good insulating properties.Each acrylic board is identical isosceles-trapezium-shaped.
As a kind of exemplary illustration, line holographic projections showcase 300 is truncated rectangular pyramids, and the upper bottom length of four pieces of acrylic boards is
2.00cm, bottom length is 12.00cm, and height is 7.07cm；Four pieces of acrylic board reflecting face edges are smooth in favor of splicing
Be brought into close contact.Four pieces of acrylic boards had into open-topped rectangular pyramid, each reflecting surface and bottom surface 320 with melt viscosity synthesis
Inclination angle be 45 °, that is, obtain portable simple line holographic projections showcase 300.The overall size of the trapezoidal reflecting surface of acrylic board with
And the open-topped size of rectangular pyramid is depending on the specification of used optical projection system.Because the translucency of acrylic board is excessively good
It is good, size identical holographic film need to be also all sticked outside every block of plate, to improve the effect of line holographic projections.
The convex lens 200 are used to the image animation that the projection arrangement 100 is launched being projected in the line holographic projections exhibition
360 ° of virtual three-dimensional imagings are formed on cabinet 300.
It is above-mentioned, it is to be understood that convex lens 200 are the lens of thin edge, thick middle, at least there is a surface to be made
Sphere, also can two sides sphere is all made.Convex lens 200 can be divided into three kinds of biconvex, plano-convex and concave-convex lens.Preferably, it is described convex
Lens 200 are Fresnel Lenses.
It should be noted that using common convex lens 200, it may appear that dimmed, the fuzzy phenomenon in corner, because light
Refraction only occur in the interface of medium, convex lens are 200 thicker, and the part of light straightline propagation in glass can cause light
Decay.If the part of straightline propagation can be removed, only retain the curved surface reflected, just can save lot of materials while reaching
Identical spotlight effect.Fresnel lens uses this principle.Fresnel Lenses also known as Fresnel lens, are by polyene mostly
The thin slice of hydrocarbon material injection pressure, also there is what glass made, and lens surface one side is smooth surface, and another side imprinting is ascending
Concentric circles.Fresnel Lenses is equivalent to the convex lens 200 of infrared ray and visible ray, and effect is preferable, but cost is than common convex lens
Mirror 200 is much lower.Fresnel Lenses appears as a piece of glass for having countless multiple concentric circles lines (i.e. Fresnel zone), but can
Reach the effect of convex lens 200.Fresnel Lenses utilizes the special optical principle of lens, and side produces an alternating before the detectors
" blind area " and " highly sensitive area " of change, to improve its detection receiving sensitivity.
According to the imaging formula of convex lens 200,1/u+1/v=1/f, i.e. object distance (u) and the sum reciprocal of image distance (v) are equal to Jiao
Inverse away from (f).When object distance (u) is equal to focal length (f), image distance (v) is infinity, and lens can be by a branch of by a point scattering
Light is refracted as a branch of directional light in opposite side.Therefore, when the projection arrangement 100 is located at the focus of the side of convex lens 200
During place, the light planoconvex lens 200 emitted from projection arrangement 100 forms a branch of after reflecting in the opposite side of convex lens 200
Directional light, further according to Pei Poer effect principles, the directional light is incident upon each side 310, Guan Zhongcong of line holographic projections showcase 300
360 ° of any angles of line holographic projections showcase see it is all that 3-dimensional image shows, and third dimension is strong, can be regarded to spectators with novel, mysterious
Feel impact, attract audience attention, excite spectators to probe into desire, it is possible to play the live popularity of aggregation, deepen visitor's impression, carry
Height is demonstrated the effect of thing popularity.
Preferably, it is the projection arrangement 100, described as shown in figure 1, in the first embodiment of the present utility model
Convex lens 200 and the line holographic projections showcase 300 are respectively positioned on straight line, and the line holographic projections showcase 300 is located at described convex
The other side of lens 200.
It is understood that in the first above-mentioned embodiment, the top of the line holographic projections showcase 300 is towards convex lens
200 sides, the light source that the projection arrangement 100 is launched reflects into parallel after convex lens 200 in the opposite side of convex lens 200
Light, is directly projected on the line holographic projections showcase 300 and forms 360 ° of virtual three-dimensional imagings.
Preferably, as shown in Fig. 2 in second of embodiment of the present utility model, the virtual three-dimensional imaging device 1
Also include speculum 400.The projection arrangement 100, the convex lens 200 and the speculum 400 are respectively positioned on straight line,
The speculum 400 is located at the other side of convex lens 200, and the speculum 400 is used to launch the projection arrangement 100
Image animation be reflected on the line holographic projections showcase 300 and form the imaging of 360 ° of virtual three-dimensionals.
It is understood that in above-mentioned second of embodiment, the top of the line holographic projections showcase 300 is towards speculum
400 minute surface sides, the light source that the projection arrangement 100 is launched reflects into flat after convex lens 200 in the opposite side of convex lens 200
On row light, the minute surface for being first incident upon the speculum 400, then by being formed on mirror-reflection to line holographic projections showcase 300
360 ° of virtual three-dimensional imagings.Therefore it may only be necessary to adjust the angle of inclination of speculum 400, make directional light entering on speculum 400
Angle between firing angle and the bottom surface 320 of speculum 400 and line holographic projections showcase 300 is identical, you can realize line holographic projections showcase
300 can form the virtual three-dimensional imaging of 360 ° of visual flourishing effects in different putting positions, and ensure good imaging quality.
Further, the virtual three-dimensional imaging device 1 also includes transmission device 500, and the convex lens 200 are arranged on institute
State on transmission device 500, the transmission device 500 is used to drive the displacement of convex lens 200.
Further, the virtual three-dimensional imaging device 1 also include control system 600, the control system 600 with it is described
Transmission device 500 is connected.
As a kind of exemplary illustration, as shown in figure 3, the transmission device 500 includes stepper motor 530, the and of gear 510
Conveyer belt 520.The stepper motor 530 receives the electric impulse signal that control system 600 is sent, and the pulse signal is converted into
Angular displacement, rotates gear 510, and then drives the transmission, conversion of conveyer belt 520 to be displacement of the lines, so as to control the position of convex lens 200
Move.It should be noted that in normal operation, rotation direction, the number of turns and the stop position of stepper motor 530 are depended on
Pulse number and pulse direction that control system 600 is sent, without being influenceed by load change.The control system 600 is
AT89C51 models single-chip microcomputer (rear abbreviation single-chip microcomputer), the single-chip microcomputer includes the drive control circuit being connected with stepper motor 530
610, the drive control circuit 610 includes the bipolar special driving chip of TA8435 two-phase stepping motors 530.Single-chip microcomputer operation program
After send control signals to drive control circuit 610, according to the difference of single-chip microcomputer result, by drive control circuit 610
The train pulse signal different with being reduced into and pulse direction are parsed, the rotation direction and rotation phase of stepper motor 530 is controlled.
It is made up of the system that is set to of closed loop stepper motor 530 and single-chip microcomputer, single-chip microcomputer can be with by recording impulse direction and number
Direction and phase that stepper motor 530 moves compared with original state are determined, drive linear distance is determined according to drive mechanism.
Preferably, the control system 600 includes wireless signal transceiver module 620.
Preferably, the control system 600 also includes display module 630 and Keysheet module 640
It is to be appreciated that above-mentioned wireless signal transceiver module 620 can be enumerated as wireless wifi module or bluetooth module, i.e.,
It can be connected by wireless wifi or Bluetooth signal with mobile intelligent terminal such as mobile phone, ipad or computer etc..Specifically, as schemed
Shown in 3, the wireless signal transceiver module 620 can receive the wireless signal that mobile intelligent terminal sends and pass to drive control
Circuit 610, reduces and is parsed into corresponding work order by drive control circuit 610, and control stepper motor 530 works.
It is understood that situations such as display module 630 is used to show the working condition of stepper motor, the keyboard
Module 640 includes physical button or touch sensitive key, available for control power switch and input data etc..
In summary, the beneficial effect of the virtual three-dimensional imaging device with 360 ° of visual effects of the present utility model is：
(1) virtual three-dimensional imaging device 1 of the present utility model is imaged original by Pei Poer effect principles and convex lens 200
Reason, the image animation for launching projection arrangement 100, which is projected on line holographic projections showcase 300, forms visually more active effect
Really, it is easier to reach the virtual image of the advertising results of higher degree, all it is three in terms of 360 ° of any angles of line holographic projections showcase
Dimension image shows, and third dimension is strong, can attract audience attention to spectators with novel, mysterious visual impact, excite spectators to visit
Study carefully desire, it is possible to play a part of the live popularity of aggregation, deepen visitor's impression, improve and be demonstrated thing popularity.In addition, this reality
Good with new virtual image quality, definition and the color also Zhen Dugao of stereopsis, are not in smudgy and ghost image
Problem.
(2) further, virtual three-dimensional imaging device 1 of the present utility model reflects by using the light of speculum 400 and made
With, it is only necessary to the i.e. achievable line holographic projections showcase 300 in angle of inclination for adjusting speculum 400 can shape in different putting positions
Into the virtual image of 360 ° of visual flourishing effects, and ensure good imaging quality.
(3) further, virtual three-dimensional imaging device 1 of the present utility model is by setting transmission device 500 and control system
System 600, when changing the convex lens 200 with different focus, it is not necessary to mobile projector device 100 and line holographic projections showcase
300 position, it is only necessary to the displacement for realizing convex lens 200 is run by the control transmission device 500 of control system 600.
Although more above used the term for representing structure, such as " line holographic projections showcase ", " wireless signal receives and dispatches mould
Block ", " projection arrangement " etc., but it is not precluded from the possibility using other terms.Using these terms just for the sake of more convenient
Ground describes and explains essence of the present utility model；Being construed as any additional limitation is all and the utility model essence
What god disagreed.
It is described above, embodiment only of the present utility model, but protection domain of the present utility model do not limit to
In this, any one skilled in the art can readily occur in change in the technical scope that the utility model is disclosed
Or replace, it should all cover within protection domain of the present utility model.
Claims (10)
1. a kind of virtual three-dimensional imaging device with 360 ° of visual effects, it is characterised in that：Including projection arrangement, convex lens and
In the line holographic projections showcase of multi-prism taper；The projection arrangement is located at the focal point of the convex lens side；The line holographic projections
Each of showcase is that size identical is trapezoidal sideways；The image animation that the convex lens are used to launch the projection arrangement is thrown
Shadow forms 360 ° of virtual three-dimensional imagings on the line holographic projections showcase.
2. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 1, it is characterised in that：It is described complete
Each of breath projection showcase is phantom imaging glass sideways.
3. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 1, it is characterised in that：It is described complete
Each of breath projection showcase is made up of acrylic board and the holographic film being attached on the acrylic board sideways.
4. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 1, it is characterised in that：It is described to throw
Image device, the convex lens and the line holographic projections showcase are respectively positioned on straight line, and the line holographic projections showcase is located at described
Convex lens other side.
5. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 1, it is characterised in that：Also include
Speculum, the projection arrangement, the convex lens and the speculum are respectively positioned on straight line, and the speculum is located at described
Convex lens other side, the speculum is used to the image animation that the projection arrangement is launched being reflected in the line holographic projections exhibition
360 ° of virtual three-dimensional imagings are formed on cabinet.
6. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 1, it is characterised in that：It is described convex
Lens are Fresnel Lenses.
7. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 1, it is characterised in that：Also include
Transmission device, the convex lens are arranged on the transmission device, and the transmission device is used to drive the convex lens displacement.
8. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 7, it is characterised in that：Also include
Control system, the control system is connected with the transmission device.
9. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 8, it is characterised in that：The control
System processed includes wireless transport module.
10. the virtual three-dimensional imaging device with 360 ° of visual effects according to claim 8, it is characterised in that：It is described
Control system includes display module and Keysheet module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332287.7U CN206601534U (en) | 2017-03-30 | 2017-03-30 | Virtual three-dimensional imaging device with 360 ° of visual effects |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720332287.7U CN206601534U (en) | 2017-03-30 | 2017-03-30 | Virtual three-dimensional imaging device with 360 ° of visual effects |
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| Publication Number | Publication Date |
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| CN206601534U true CN206601534U (en) | 2017-10-31 |
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| CN201720332287.7U Expired - Fee Related CN206601534U (en) | 2017-03-30 | 2017-03-30 | Virtual three-dimensional imaging device with 360 ° of visual effects |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110322813A (en) * | 2019-06-13 | 2019-10-11 | 贵阳学院 | A kind of line holographic projections showcase |
| CN111519942A (en) * | 2020-04-27 | 2020-08-11 | 胡贵华 | Novel bus waiting station booth |
-
2017
- 2017-03-30 CN CN201720332287.7U patent/CN206601534U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110322813A (en) * | 2019-06-13 | 2019-10-11 | 贵阳学院 | A kind of line holographic projections showcase |
| CN111519942A (en) * | 2020-04-27 | 2020-08-11 | 胡贵华 | Novel bus waiting station booth |
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