CN109035887A - The line holographic projections instructional device for being transmitted and being controlled based on 5G network - Google Patents
The line holographic projections instructional device for being transmitted and being controlled based on 5G network Download PDFInfo
- Publication number
- CN109035887A CN109035887A CN201810969517.XA CN201810969517A CN109035887A CN 109035887 A CN109035887 A CN 109035887A CN 201810969517 A CN201810969517 A CN 201810969517A CN 109035887 A CN109035887 A CN 109035887A
- Authority
- CN
- China
- Prior art keywords
- projection
- polygonal pyramid
- projector
- network
- transmitted
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/60—Projection screens characterised by the nature of the surface
Abstract
The present invention relates to intelligent tutoring device fields, more particularly to the line holographic projections instructional device for being transmitted and being controlled based on 5G network, including projection cabinet body, positioned at the intracorporal polygonal pyramid combination screen of projection cabinet and multiple projectors for combining screen projection teaching image to polygonal pyramid, the projector is symmetrical centered on the vertical center of gravity line for projecting cabinet body, and polygonal pyramid combination screen includes muti-piece projection plate；It further include control system and user terminal, for control system by teaching image of the 5G agreement wireless receiving from tutoring system, control system passes through the control instruction of 5G agreement wireless receiving user terminal, and control system controls the projector according to control instruction and projects teaching image.The present invention is fuzzy in the three-dimensional mirage of formation, and adjusting projection plate is clear up to mirage, and polygonal pyramid is avoided to combine image blur caused by screen or projector positional shift.
Description
Technical field
The present invention relates to intelligent tutoring device fields, and in particular to the line holographic projections transmitted and controlled based on 5G network
Instructional device.
Background technique
Student obtains professional skill by the study of different disciplines, and it is good that some disciplines require student to have
Three-dimensional space ability, such as automotive electronics profession, electromechanical speciality and mechanical major.Currently, the teaching of every subjects profession is universal
Imparted knowledge to students using the multimedia equipment of the compositions such as computer, projector and projection screen, projector by the three-dimensional structure prestored or
Three-dimensional components, which project, shows teaching on projection screen, these 3-D images are shown by two-dimensional surface, but student
Or the specific structural features for observing threedimensional model in teaching in detail can not be shown from this two-dimensional surface.
The generation solid space mirage of line holographic projections technology and the characteristics of interacting mirage with performing artist, ideally solve
The above problem, line holographic projections technology are also referred to as virtual image technology, using interference and diffraction principle record and reconstructed object
True three dimensional image.Current holographic projector generally transmits data for projection by the HDMI interface between host, or makes
Data for projection transmission is carried out with wireless WiFi.
When using wireless transmission method transmission image information, the transmission speed when transmitting more complex or large-scale projected image
Slowly；When crevice projection angle inaccuracy, the stereopsis of formation is smudgy；And when projecting image, it is desirable that ambient brightness is weaker,
If opening more headlamp, will lead to ambient brightness can not see the stereopsis to be formed clearly greatly very much, so user cannot
Seeing the barrier in ambient enviroment clearly, user is easy to be tripped by barrier when to movement at control button or touch screen position,
Using inconvenient.
Summary of the invention
The invention is intended to provide a kind of line holographic projections instructional device for being transmitted and being controlled based on 5G network, to solve to throw
The problem that projection image angle degree inaccuracy causes stereopsis fuzzy.
The line holographic projections instructional device for being transmitted and being controlled based on 5G network in this programme, including projection cabinet body, position
In the intracorporal polygonal pyramid combination screen of projection cabinet and multiple projectors for combining screen projection teaching image to polygonal pyramid, the projector
Symmetrical centered on the vertical center of gravity line for projecting cabinet body, the polygonal pyramid combination screen includes muti-piece projection plate；
It further include control system and user terminal, the control system passes through religion of the 5G agreement wireless receiving from tutoring system
Image is learned, the control system passes through the control instruction of 5G agreement wireless receiving user terminal, and the control system refers to according to control
The control projector is enabled to project teaching image.
The beneficial effect of this programme is:
1. carry out line holographic projections teaching, the teaching image in tutoring system is sent to control system with 5G agreement, controls
System controls the projector and projects image on polygonal pyramid combination screen, and multiple sides of polygonal pyramid combination screen can be respectively as dawn
Mirror, beam splitter, beam expanding lens and holographic dry plate, the projector form the object beam of diffusion formula, another portion by image under laser irradiation
Point image laser is mapped on polygonal pyramid combination screen, and image laser and object beam superposition generate interference, each point on image light wave
Position is mutually and amplitude is converted into the intensity spatially changed, to using the contrast between interference fringe and be spaced the complete of image light wave
Portion's information is recorded to form hologram；Under multiple coherent laser illuminations, the diffraction light wave of the sinusoidal pattern hologram of hologram
Provide two as, i.e., it is original as and conjugate image, so that the center position in polygonal pyramid combination screen generates three-dimensional mirage, if three-dimensional
Mirage is fuzzy, and adjusting projection plate is clear up to mirage, avoids image mould caused by polygonal pyramid combination screen or projector positional shift
Paste.
2. transmit image information or control instruction by 5G agreement, 5G agreement is assisted compared to WiFi agreement and existing 4G
View has faster transmission speed, can guarantee the continuity of image playing display.
Further, the polygonal pyramid combination screen includes multiple transparent panels for being plated with holographic film, and the transparent panel turns
It is dynamic to be hinged on projection cabinet body.
When polygonal pyramid combines screen imaging, the tilt angle of each transparent panel is adjusted, it is each to guarantee that the projector projects
It can be formed on transparent panel and clearly be marketed.
Further, the transparent panel and horizontally angle are 15 ° -75 °.
When adjusting transparent panel, the angle change range of transparent panel is larger, can adjust to obtain clearly image,
The upright truncated rectangular pyramids or inversion truncated rectangular pyramids that can also allow transparent panel to surround simultaneously, guarantee transparent panel under interference and diffraction
Form clearly stereopsis.
Further, the transparent panel two sides are installed with the elastic balloon of bar shaped, are filled with air in the elastic balloon.
During rotation, the elastic balloon of two sides is pressed against always transparent panel to transparent panel, avoids unclamping to transparent side
Transparent panel is swung after the power that plate applies, and elastic balloon is limited and buffered to transparent panel.
Further, the projection cabinet body is equipped with multiple L-shaped light conducting cylinders, and the vertical section of the light conducting cylinder runs through projection
The interior bottom of cabinet body, the vertical section inlet of shown light conducting cylinder are connected with convex lens, and the horizontal segment of the light conducting cylinder extends to the ground,
The photosphere that is all-trans is coated on the inner wall of the light conducting cylinder.
Convex lens imports inside light conducting cylinder after amplifying the light of the projector, and light passes through the photosphere that is all-trans of light conducting cylinder inner wall
It is irradiated after reflection from horizontal segment, projects light on ground, play illuminating effect, avoided environment too dark and move viewer
It is tripped when dynamic by barrier, light is projected onto ground and is illuminated, and also will not influence the imaging of image projection.
Further, the control system includes main control module and communication module, and the communication module receives tutoring system
Teaching image is simultaneously sent to main control module, and the communication module receives the control instruction of user terminal and is sent to main control module, institute
It states main control module and projector projection teaching image is controlled according to control instruction.
The control instruction that the teaching image and user that tutoring system is sent are sent is by communication module with the progress of 5G agreement
It sends, and user sends control instruction using user terminal, without finding control button when being used under darker environment, uses
It is more convenient.
Detailed description of the invention
Fig. 1 is the structural representation for the line holographic projections instructional device embodiment one transmitted and controlled based on 5G network
Figure；
Fig. 2 is the vertical section structure schematic diagram of light conducting cylinder in Fig. 1；
Fig. 3 is the one circuit theory frame of line holographic projections instructional device embodiment for being transmitted and being controlled based on 5G network
Figure；
Fig. 4 is the structural representation for the line holographic projections instructional device embodiment two transmitted and controlled based on 5G network
Figure.
Specific embodiment
Below by the further details of explanation of specific embodiment.
Appended drawing reference in Figure of description includes: projection cabinet body 1, polygonal pyramid combination screen 2, hinge 3, light conducting cylinder 4, convex lens
Mirror 5, the photosphere 6 that is all-trans, barn door 7, fan 8, gas-guide tube 9.
Embodiment one
The line holographic projections instructional device for being transmitted and being controlled based on 5G network includes projection cabinet body 1, position as shown in Figure 1:
In polygonal pyramid combination screen 2 and multiple projectors to 2 projection teaching image of polygonal pyramid combination screen in projection cabinet body 1, polygonal pyramid
Combination screen 2 includes multiple transparent panels for being plated with holographic film, and transparent panel rotation is hinged on projection cabinet body 1, transparent panel
It is hinged on projection cabinet body 1 by self-latching hinge 3, transparent panel surrounds truncated rectangular pyramids, transparent panel and horizontal direction in the present embodiment
Angle be 15 ° -75 °, the angular range can allow transparent panel surround upright truncated rectangular pyramids or be inverted truncated rectangular pyramids, i.e., positive truncated rectangular pyramids be it is small
End upward and big end downward, be inverted truncated rectangular pyramids be small end big end upward, has only drawn the signal of positive truncated rectangular pyramids downward in the present embodiment
Figure, transparent panel two sides are bonded with the elastic balloon of bar shaped, air are filled in elastic balloon, and the amount of air allows elastic balloon to rouse
It subject to swollen, project and is welded with barn door 7 at the top of cabinet body 1, the projector is mounted on barn door 7, and the projector is to project hanging down for cabinet body 1
Symmetrical centered on straight center of gravity line, i.e., the side of each corresponding polygonal pyramid combination screen 2 of the projector, the projector can use liquid crystal
Show screen or projection lens, polygonal pyramid combination screen 2 includes muti-piece projection plate.
As shown in Fig. 2, being welded with multiple L-shaped light conducting cylinders 4 on the interior bottom of projection cabinet body 1, such as light conducting cylinder 4 is settable
Four, the vertical section of light conducting cylinder 4 runs through the interior bottom of projection cabinet body 1, and the vertical section inlet of light conducting cylinder 4 is connected with convex lens 5,
The horizontal segment of light conducting cylinder 4 extends to the ground, and the photosphere 6 that is all-trans is coated on the inner wall of light conducting cylinder 4.
As shown in figure 3, further including control system and user terminal, control system includes main control module and communication module, communication
Module receives the teaching image of tutoring system by 5G agreement and is sent to main control module, and tutoring system includes teaching host,
Communication module passes through the control instruction of 5G agreement wireless receiving user terminal and is sent to main control module, and 5G agreement uses existing 3GPP
TS 38.322 (V15.2.0) radio link control specification, user terminal can use existing mobile phone or plate, main control module root
Projector projection teaching image is controlled according to control instruction.
In teaching, the image to be projected on the host of tutoring system is sent to communication module by 5G agreement by user,
The image to be projected received is sent to main control module by communication module, and main control module controls the projector and image is projected polygonal pyramid
On combination screen 2, each transparent panel carries out interference to throw light and diffraction forms aerial three-dimensional mirage, and user is in teaching process
In control instruction, such as " left page turning ", " right page turning " or image name such as " hair sent to communication module with 5G agreement by user terminal
Motivation ", cylinder etc., main control module obtain control instruction and control the image that the projector projects control instruction representative, and user is only
Need on fixed position by user terminal control the projector projection, without projection cabinet body 1 on find control button or
Touch screen, using more convenient, and the present apparatus is communicated when transmitting image information or control instruction using 5G agreement, is communicated
Speed is fast, guarantees the continuity of image playing display.
In polygonal pyramid combination 2 imaging of screen, the tilt angle of each transparent panel is adjusted, transparent panel is in rotation process
In, the elastic balloon of two sides is pressed against always transparent panel, and it avoids unclamping the transparent panel after the power that transparent panel applies and swings, bullet
Property air bag transparent panel is limited and is buffered, the tilt angle of transparent panel allow polygonal pyramid combination screen 2 show it is clearest
Complete solid mirage avoids image blur caused by polygonal pyramid combination screen 2 or projector positional shift.
During the projector projects image, if the environment of playing display image is darker, some light of the projector is thrown
It is mapped on light conducting cylinder 4, convex lens 5 imports inside light conducting cylinder 4 after amplifying light, and light passes through the total-light-reflection of 4 inner wall of light conducting cylinder
It is irradiated after 6 reflection of layer from horizontal segment, projects light on ground, play illuminating effect, avoided environment too dark and make to watch
Person is tripped when mobile by barrier, and light is projected onto ground and is illuminated, and will not influence the imaging of image projection.
Embodiment two
Difference with embodiment one is, as shown in figure 4, transparent panel is combined between the interior bottom of screen 2 with polygonal pyramid because of hinge 3
With gap, the projector is mounted on barn door 7 and combines on 2 sides of screen towards polygonal pyramid, and cavity is offered in barn door 7, projects
The thermovent of device is located in cavity, and installation is to cavity cooling fan 8, barn door 7 and projection cabinet body on the right side wall of barn door 7
Gas-guide tube 9 is connected between 1 interior bottom, gas-guide tube 9 is connected to the inner space of cavity and polygonal pyramid combination screen 2, and gas-guide tube 9 is connected to
On the interior bottom of polygonal pyramid combination screen 2, gas-guide tube 9 imports the air in cavity from the bottom of polygonal pyramid combination screen 2.
When present apparatus progress stereopsis displaying is used continuously, when for positive truncated rectangular pyramids, multiple projectors will radiate
Air is discharged into cavity, and air is blown into cavity since fan 8 starts always, and the air pressure in cavity increases, air
Into in gas-guide tube 9 and being directed at the bottom of polygonal pyramid combination screen 2, and the density because of hot-air than ambient air
Small, hot-air moves up, in the hot-air gap location contact environment that screen 2 is combined with polygonal pyramid in bottom in polygonal pyramid combination screen 2
Cold air, so that the stereopsis in polygonal pyramid combination screen 2 is generated a small amount of distortion, reinforce the visual effect of stereopsis, simultaneously
Polygonal pyramid combination 2 bottom sizes of screen are greater than top dimension, and hot-air pressure in polygonal pyramid combination screen 2 increases, and add hot-air
Speed is overflowed from 2 top of polygonal pyramid combination screen, is accelerated the heat dissipation of the projector, is avoided projector temperature excessively high, moreover, hot-air is from more
When 2 top of pyramid combination screen spills into barn door 7, barn door 7 hinders hot-air to move up and supported back downwards, hot-air punching
It hits on the side wall of polygonal pyramid combination screen 2, blows the dust on polygonal pyramid combination 2 side walls of screen off, keep polygonal pyramid combination 2 side walls of screen
It is clear, guarantee the clear of vision.
When for being inverted truncated rectangular pyramids, hot-air directly blows the dust on transparent panel off, meanwhile, polygonal pyramid combination screen 2
Towards upper, hot-air is automatically moved up big end, is not blocked, and the rapid heat dissipation of the projector is made, and avoids projector temperature excessively high
Drop shadow effect, while the cold air in hot air environment are influenced, distorts stereopsis on a small quantity, reinforces stereoscopic vision effect
Fruit.
What has been described above is only an embodiment of the present invention, and the common sense such as well known specific structure and characteristic are not made herein in scheme
Excessive description.It, without departing from the structure of the invention, can be with it should be pointed out that for those skilled in the art
Several modifications and improvements are made, these also should be considered as protection scope of the present invention, these all will not influence what the present invention was implemented
Effect and patent practicability.The scope of protection required by this application should be based on the content of the claims, in specification
The records such as specific embodiment can be used for explaining the content of claim.
Claims (6)
1. the line holographic projections instructional device for being transmitted and being controlled based on 5G network, it is characterised in that: including projection cabinet body, be located at
Project cabinet intracorporal polygonal pyramid combination screen and multiple projectors that screen projection teaching image is combined to polygonal pyramid, the projector with
Symmetrical centered on the vertical center of gravity line of projection cabinet body, the polygonal pyramid combination screen includes muti-piece projection plate；
It further include control system and user terminal, the control system passes through teaching shadow of the 5G agreement wireless receiving from tutoring system
Picture, the control system pass through the control instruction of 5G agreement wireless receiving user terminal, and the control system is according to control instruction control
The projector processed projects teaching image.
2. the line holographic projections instructional device according to claim 1 for being transmitted and being controlled based on 5G network, feature exist
In: the polygonal pyramid combination screen includes multiple transparent panels for being plated with holographic film, and the transparent panel rotation is hinged on projection
On cabinet body.
3. the line holographic projections instructional device according to claim 2 for being transmitted and being controlled based on 5G network, feature exist
In: the transparent panel is 15 ° -75 ° with horizontally angle.
4. the line holographic projections instructional device according to claim 2 for being transmitted and being controlled based on 5G network, feature exist
In: the transparent panel two sides are installed with the elastic balloon of bar shaped, are filled with air in the elastic balloon.
5. the line holographic projections instructional device according to claim 1 for being transmitted and being controlled based on 5G network, feature exist
In: the projection cabinet body is equipped with multiple L-shaped light conducting cylinders, and the vertical section of the light conducting cylinder runs through the interior bottom of projection cabinet body,
The vertical section inlet of shown light conducting cylinder is connected with convex lens, and the horizontal segment of the light conducting cylinder extends to the ground, the light conducting cylinder
Inner wall on be coated with and be all-trans photosphere.
6. the line holographic projections instructional device according to claim 1 for being transmitted and being controlled based on 5G network, feature exist
In: the control system includes main control module and communication module, and the teaching image that the communication module receives tutoring system is concurrent
It send to main control module, the communication module receives the control instruction of user terminal and is sent to main control module, the main control module root
Projector projection teaching image is controlled according to control instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810969517.XA CN109035887B (en) | 2018-08-23 | 2018-08-23 | Holographic projection teaching device for transmission and control based on 5G network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810969517.XA CN109035887B (en) | 2018-08-23 | 2018-08-23 | Holographic projection teaching device for transmission and control based on 5G network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109035887A true CN109035887A (en) | 2018-12-18 |
| CN109035887B CN109035887B (en) | 2020-11-03 |
Family
ID=64627229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810969517.XA Active CN109035887B (en) | 2018-08-23 | 2018-08-23 | Holographic projection teaching device for transmission and control based on 5G network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109035887B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562433A (en) * | 2020-12-30 | 2021-03-26 | 华中师范大学 | 5G strong interaction remote delivery teaching system based on holographic terminal and working method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090939Y (en) * | 2007-10-25 | 2008-07-23 | 石家庄久安科技有限公司 | Light concentrating illumination device |
| CN201198986Y (en) * | 2007-12-19 | 2009-02-25 | 张洪延 | Mixing daylight illuminating system |
| US20130194644A1 (en) * | 2012-01-30 | 2013-08-01 | Light Blue Optics Ltd | Image display systems |
| CN104898394A (en) * | 2015-04-27 | 2015-09-09 | 华北电力大学 | Holographic projection technology-based man-machine interaction system and method |
| CN106019778A (en) * | 2016-07-08 | 2016-10-12 | 天津工业大学 | Classroom model based on holographic laser projection and application thereof |
| CN206179471U (en) * | 2016-08-31 | 2017-05-17 | 杭州耀晶科技有限公司 | Holographically projected showcase |
| CN107767704A (en) * | 2017-01-23 | 2018-03-06 | 青岛陶知电子科技有限公司 | A kind of holographic intelligent teaching one-piece |
-
2018
- 2018-08-23 CN CN201810969517.XA patent/CN109035887B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201090939Y (en) * | 2007-10-25 | 2008-07-23 | 石家庄久安科技有限公司 | Light concentrating illumination device |
| CN201198986Y (en) * | 2007-12-19 | 2009-02-25 | 张洪延 | Mixing daylight illuminating system |
| US20130194644A1 (en) * | 2012-01-30 | 2013-08-01 | Light Blue Optics Ltd | Image display systems |
| CN104898394A (en) * | 2015-04-27 | 2015-09-09 | 华北电力大学 | Holographic projection technology-based man-machine interaction system and method |
| CN106019778A (en) * | 2016-07-08 | 2016-10-12 | 天津工业大学 | Classroom model based on holographic laser projection and application thereof |
| CN206179471U (en) * | 2016-08-31 | 2017-05-17 | 杭州耀晶科技有限公司 | Holographically projected showcase |
| CN107767704A (en) * | 2017-01-23 | 2018-03-06 | 青岛陶知电子科技有限公司 | A kind of holographic intelligent teaching one-piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112562433A (en) * | 2020-12-30 | 2021-03-26 | 华中师范大学 | 5G strong interaction remote delivery teaching system based on holographic terminal and working method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109035887B (en) | 2020-11-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2589379C2 (en) | Three-dimensional display system | |
| US4367486A (en) | Three dimensional imaging system | |
| US9541901B2 (en) | Viewer tracking in a projection system | |
| JP2005515487A (en) | 3D image projection using retroreflective screen | |
| CN102164296B (en) | System and method for full-angular parallax stereoscopic imaging based on single DLP (digital light processing) projection | |
| CN106773469B (en) | Scene reproduces line holographic projections display system | |
| CN110458953A (en) | A kind of 3-D image reconfiguration system and method | |
| CN107290864A (en) | It is a kind of based on the body three-dimensional display apparatus and method that circumferentially shield scanning | |
| CN109035887A (en) | The line holographic projections instructional device for being transmitted and being controlled based on 5G network | |
| CN206431409U (en) | Scene reproduces line holographic projections and shows system | |
| RU2653560C1 (en) | Holographic projector-b | |
| CN206741209U (en) | A kind of 360 degree of panorama VR hologram devices | |
| CN205510302U (en) | Three -dimensional projectors | |
| Kiyokawa et al. | Stealth projection: Visually removing projectors from dynamic projection mapping | |
| CN103777915B (en) | Immersion interactive system | |
| KR101239878B1 (en) | Stereoscopic image display apparatus for portable | |
| CN106483814A (en) | A kind of 3D holographic projection system based on augmented reality and its using method | |
| CN109035886B (en) | Interactive holographic projection teaching device | |
| CN208384328U (en) | A kind of rotating projection device and Multifunctional projector | |
| CN111338175A (en) | Transmission type geometric holographic display system | |
| CN109815939A (en) | Projection display system and method based on human eye tracking | |
| CN211528904U (en) | Transmission type geometric holographic display system | |
| CN108267946A (en) | A kind of holographic display system for windshield | |
| CN105573095A (en) | Electronic equipment and displaying and processing method therefor | |
| CN109309827A (en) | More people's apparatus for real time tracking and method for 360 ° of suspension light field three-dimensional display systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |