WO2021248515A1 - 基于 3d 全息投影技术的广告装置和工作方法 - Google Patents

基于 3d 全息投影技术的广告装置和工作方法 Download PDF

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Publication number
WO2021248515A1
WO2021248515A1 PCT/CN2020/096431 CN2020096431W WO2021248515A1 WO 2021248515 A1 WO2021248515 A1 WO 2021248515A1 CN 2020096431 W CN2020096431 W CN 2020096431W WO 2021248515 A1 WO2021248515 A1 WO 2021248515A1
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WIPO (PCT)
Prior art keywords
projection
receptor
control box
holographic
module
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PCT/CN2020/096431
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English (en)
French (fr)
Inventor
方伟华
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湖州青米传媒科技有限公司
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Publication of WO2021248515A1 publication Critical patent/WO2021248515A1/zh

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Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F19/00Advertising or display means not otherwise provided for
    • G09F19/12Advertising or display means not otherwise provided for using special optical effects
    • G09F19/18Advertising or display means not otherwise provided for using special optical effects involving the use of optical projection means, e.g. projection of images on clouds
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B21/00Projectors or projection-type viewers; Accessories therefor
    • G03B21/54Accessories
    • G03B21/56Projection screens
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03BAPPARATUS 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
    • G03B35/00Stereoscopic photography
    • G03B35/18Stereoscopic photography by simultaneous viewing

Definitions

  • the invention belongs to the technical field of holographic projection, and specifically relates to an advertising device and a working method based on 3D holographic projection technology.
  • Holographic projection technology also known as virtual imaging technology, is a technology that uses the principles of interference and diffraction to record and reproduce real three-dimensional images of objects.
  • the first step is to use the principle of interference to record the light wave information of the object.
  • This is the shooting process: the object is irradiated by the laser to form a diffuse object beam; the other part of the laser is used as a reference beam to be shot on the holographic film and superimposed with the object beam Interference is generated, and the phase and amplitude of each point on the object's light wave are converted into spatially varying intensity, so that all the information of the object's light wave is recorded by using the contrast and interval between the interference fringes.
  • the second step is to use the principle of diffraction to reproduce the light wave information of the object.
  • a hologram is like a complex grating.
  • the diffracted light wave of a linearly recorded sinusoidal hologram can generally give two Two images, namely the original image (also called the initial image) and the conjugate image.
  • the reproduced image has a strong sense of three-dimensionality and a real visual effect.
  • Each part of the hologram records the light information of each point on the object, so in principle, each part of it can reproduce the entire image of the original object, and multiple exposures can also record multiple different images on the same film. And they can be displayed separately without interfering with each other.
  • the more mature pseudo-holographic technologies such as phantom imaging are used in holographic projection, which are composed of three-dimensional model scenes, modeling lighting systems, optical imaging systems, film and television playback systems, computer multimedia systems, sound systems, and control systems, which can realize large-scale products, etc.
  • the realistic display In actual use, the requirements for light intensity are relatively strict, and the display effect is poor in an open environment or an environment with strong light.
  • the holographic projection device is often a fixed structure and cannot display a three-dimensional image to the audience in all directions.
  • Cikon Patent Literature discloses a holographic projection device with adjustable projection screen [201810575437.6], which includes a bottom frame, an adjusting device and a holographic projection device. An extension plate is arranged above the bottom frame, and the bottom of the support frame is fixed on the inner surface of the bottom frame.
  • the support frame is provided with guide rod 1 and guide rod 2, the upper surface of the support frame is provided with a rotating seat, the screw can be rotatably connected between the upper and lower plates of the support frame, the screw is provided with a nut block, and the worm can be rotatably connected to the upper part of the support frame
  • the two sides of the lifting seat pass through the guide rod 1 and the guide rod 2
  • the rotating rod passes through the rotating seat
  • the rotating table is fixed on the upper end of the rotating rod
  • the holographic projector is fixed on the lower surface of the extension plate
  • the holographic projection screen is installed on the The middle position of the rotating table.
  • the purpose of the present invention is to solve the above problems and provide an advertising device based on 3D holographic projection technology with reasonable design and good adaptability to light changes.
  • Another object of the present invention is to solve the above-mentioned problems and provide a working method of an advertising device based on 3D holographic projection technology with reasonable design and good adaptability to light changes.
  • the advertising device based on 3D holographic projection technology includes a mounting base, an upper top is arranged above the mounting base, and a number of support stands are arranged between the mounting base and the upper top.
  • a holographic projection imaging device is installed between the mounting base and the upper top of the board.
  • the holographic projection imaging device includes a projection receptor and a projector that are relatively fixed up and down.
  • the projection receptor has a color-changing glass attached to or surrounding the projection receptor.
  • a number of light sensors are arranged on the side of the projector.
  • a color-changing glass group that can change the color depth of the projection receptor is arranged on the projection receptor in the conventional holographic projection imaging device, and the light sensor detects the change in light intensity in time to ensure that the holographic projection imaging device exhibits the best stereo imaging effect.
  • the color-changing glass group includes an electric control glass group and a liquid control glass group.
  • the color-changing glass group can adopt two different control methods to change the color and depth of the color-changing glass group.
  • the electrically controlled glass group includes electrochromic glass that is attached or arranged around the projection receptor, and the liquid controlled glass group includes the electrochromic glass attached or arranged around the projection receptor.
  • Laminated glass, the two sides of the laminated glass are closed and there is a gap inside.
  • the gap is connected to the liquid distribution pipe arranged at the bottom of the laminated glass.
  • the liquid distribution pipe is connected to the telescopic tube set in the mounting base through a hose, and the telescopic tube is telescopic The end is linked with the drive assembly.
  • the electrochromic glass is controlled by the electric field to change the color depth.
  • the laminated glass increases the color depth of the laminated glass by filling the gap with a dark liquid.
  • the internal liquid flow is controlled by the push and pull of the driving assembly and the telescopic cylinder.
  • cameras are respectively arranged on the sides of the projector, a rotating mechanism is arranged between the projector and the upper top, and a rotating limit mechanism is arranged between the projection receptor and the mounting base.
  • the upper and lower parts of the holographic projection imaging device are respectively provided with a rotation mechanism and a rotation limit mechanism, and the projection receptor and the projector in the holographic projection imaging device keep synchronous rotation.
  • the rotating mechanism includes a driving motor arranged inside the upper top, the driving motor is connected to the center of the projector through a variable speed gear assembly, and the rotation limiting mechanism includes a driving motor arranged at the bottom of the projection receptor.
  • Round table the round table is opposite to the round groove set on the mounting base.
  • a number of roller assemblies that are symmetric to the center axis of the round table and roll relative to the bottom of the round groove are installed below the round table.
  • the bottom of the round groove is provided with a number of limit grooves opposite to the roller assembly. .
  • the driving motor provides the rotation power of the holographic projection imaging device, and the roller assembly rolls along the limit groove to keep the rotation mechanism rotating stably.
  • an outer tube surrounding the holographic projection imaging device is arranged between the mounting base and the upper top.
  • the outer tube is a transparent LED display screen, and the supporting stand is arranged outside the outer tube.
  • the outer tube made of transparent LED display can display dynamic or static advertising information, making full use of the outer tube surface.
  • the projection receiver includes a holographic projection pyramid and a holographic projection screen made of plexiglass
  • the projector includes a projection base set on top of the projection receiver, the projection base and the projection receiver
  • a projection screen is arranged on the opposite side of the body.
  • the projection receptor can adopt different display structures.
  • the holographic projection pyramid is suitable for omni-directional display, and the holographic projection screen is good for one-way display.
  • the working method of the above-mentioned advertising device based on 3D holographic projection technology is as follows, and the working method of this advertising device based on 3D holographic projection technology includes the following steps:
  • the projection screen projects a pattern to the projection receptor under the control of the projection module in the control box, and generates a three-dimensional image in the projection receptor under the action of interference and diffraction;
  • the light sensor on the projector senses the intensity of light received by the projection receptor in all directions and feeds it back to the control box, which adjusts the color depth of the color-changing glass group in each direction of the projection receptor;
  • the LED display module in the control box controls the outer tube, and the outer tube composed of a transparent LED display screen displays static or dynamic advertising information;
  • step S2 further includes the following steps:
  • the light sensing signal sensed by the light sensor is transmitted to the hydraulic control module in the control box.
  • the hydraulic control module drives the drive assembly to compress the telescopic cylinder and inject the dark liquid in the telescopic cylinder into the laminated glass In the gap, when the light intensity is lower than the threshold, the drive assembly drives the telescopic cylinder to pump out the dark liquid in the gap.
  • step S3 further includes the following steps:
  • the camera is connected to the human body recognition module and the face recognition module in the control box, the collected body motion data is transmitted to the rotation control module in the control box, and the collected face data passes through the information processing module and wired/wireless in turn Network transmission to the database in the remote control center;
  • the camera locks the position of the human body, and the rotation control module controls the rotation of the drive motor.
  • the drive motor drives the central axis of the relative rotation mechanism between the projector and the projection receptor through the variable speed gear assembly.
  • a single projection surface on the projection receptor adjusts its angle with the movement of the human body. Keep the projection surface facing the human body.
  • the present invention has the advantages of: arranging the color-changing glass group on the projection receptor, and adjusting the color depth of the color-changing glass group by the feedback of the light sensor, so as to adapt to the environment where the light intensity changes greatly; the rotation mechanism controls The position of the projection surface on the projection receptor ensures that the projection surface is always facing the audience and maintains the best display effect; it comes with a data acquisition module and cooperates with the remote control center to flexibly adjust the advertising content.
  • Figure 1 is a schematic diagram of the structure of the present invention
  • Figure 2 is a schematic view of the structure of the present invention from another perspective
  • Figure 3 is a schematic diagram of the overall structure of the present invention.
  • Figure 4 is a schematic diagram of the assembly of the projection receptor and the round table of the present invention.
  • Figure 5 is a schematic diagram of the structure of the mounting base of the present invention.
  • Figure 6 is a schematic diagram of the structure of the laminated glass of the present invention.
  • Figure 7 is a schematic diagram of the structure of the electrochromic glass of the present invention.
  • Fig. 8 is a schematic diagram of the structure of the liquid-controlled glass assembly of the present invention.
  • FIG. 9 is a block diagram of the control box of the present invention.
  • Light sensor 51 human body recognition module 52, face recognition module 53, rotation control module 54, electric control glass group 6, electrochromic glass 61, liquid control glass group 7, laminated glass 71, gap 72, liquid dispensing
  • the advertising device based on 3D holographic projection technology includes a mounting base 1, an upper top 2 is arranged above the mounting base 1, and a number of support stands are arranged between the mounting base 1 and the upper top 2.
  • a holographic projection imaging device 4 is installed between the board 11, the mounting base 1 and the upper top 2.
  • the holographic projection imaging device 4 includes a projection receptor 41 and a projector 42 that are relatively fixed up and down.
  • the projection receptor 41 has a fitting or surrounding arrangement In the color-changing glass group 5 on the projection receptor 41, a number of light sensors 51 are arranged on the side of the projector 42.
  • the holographic projection imaging device 4 adopts the pseudo-holographic imaging method of phantom imaging, in which the projection receptor 41 adopts plexiglass or other transparent plates with good imaging effect, and the color-changing glass group 5 covers the surface of the projection receptor 41 or stands on the projection receptor 41.
  • the color-changing glass group 5 can also directly serve as the projection receptor 41.
  • Independent light sensors 51 arranged in each direction detect the changes in the light intensity of the surrounding environment of the holographic projection imaging device 4 and feed back the light information to the control box 3 to control the color depth of the color glass group 5 and ensure a good display effect.
  • the color-changing glass group 5 includes an electric control glass group 6 and a liquid control glass group 7.
  • the electric control glass group 6 and the liquid control glass group 7 in the color-changing glass group 5 adopt different working principles. Among them, the electric control glass group 6 has a better effect in adjusting the color depth of the color-changing glass group 5, and the liquid control glass group 7 The cost is lower, and the appropriate color-changing glass group 5 should be selected according to the actual situation.
  • the electrically controlled glass group 6 includes electrochromic glass 61 attached to or arranged around the projection receptor 41
  • the liquid controlled glass group 7 includes laminated glass 71 attached to or arranged around the projection receptor 41.
  • the glass 71 is closed on both sides and there is a gap 72 inside.
  • the gap 72 is in communication with a liquid distribution pipe 73 arranged at the bottom of the laminated glass 71, and the liquid distribution pipe 73 is connected to a telescopic tube 75 arranged in the mounting base 1 through a hose 74.
  • the telescopic end of the telescopic cylinder 75 is linked with the driving assembly 76.
  • the electrochromic glass 61 undergoes a stable and reversible color change under the action of an external electric field.
  • Its structure includes a glass substrate, a transparent conductive layer, an electrochromic layer, an ion conductor layer and an ion storage layer.
  • a certain voltage is applied between the two transparent conductive layers, and the electrochromic layer material undergoes oxidation-reduction reaction under the action of voltage to change the color; while the electrolyte layer is composed of special conductive materials, such as high chlorine Solutions or solid electrolyte materials such as lithium acid, sodium perchlorate, etc.; the ion storage layer plays a role in storing the corresponding counter ions when the electrochromic material undergoes redox reaction and maintaining the charge balance of the entire system.
  • the ion storage layer can also be An electrochromic material with the opposite color performance of the previous layer of electrochromic material, which can play the role of color superimposition or complementarity. If the electrochromic layer material is an anodic oxidation color-changing material, the ion storage layer can be a cathode reduction color-changing material.
  • the gap 72 of the laminated glass 71 of the liquid control glass group 7 is injected with colored liquid under the action of the telescopic cylinder 75 to change the overall color of the liquid control glass group 7.
  • the telescopic cylinder 75 retracts, so that the colored liquid filled in the gap 72 is drawn back. Under the action of air pressure, the gap 72 is basically free of residual liquid.
  • a camera 43 is arranged on the side of the projector 42 respectively, a rotation mechanism 8 is arranged between the projector 42 and the upper top 2, and a rotation limit mechanism 9 is arranged between the projection receptor 41 and the mounting base 1.
  • the camera 43 is arranged on the side of the projector 42 and is connected to the control box 3.
  • the rotation mechanism 8 cooperates with the rotation limit mechanism 9 to ensure that the projector 42 and the projection receptor 41 rotate synchronously.
  • the rotation mechanism 8 includes a drive motor 81 arranged inside the upper top 2 and the drive motor 81 is connected to the center of the projector 42 through a variable gear assembly 82.
  • the rotation limit mechanism 9 includes a circular platform arranged at the bottom of the projection receptor 41. 91.
  • the round table 91 is opposite to the round groove 92 provided on the mounting base 1.
  • a number of roller assemblies 93 are installed below the round table 91 that are symmetric with respect to the center axis of the round table 91 and roll relative to the bottom of the round groove 92.
  • the bottom of the round groove 92 is opened with several A limit slot 94 opposite to the roller assembly 93.
  • the driving motor 81 in the rotating mechanism 8 has a high rotation speed, and its torque is transmitted to the projector 42 through the transmission gear in the transmission gear assembly 82, which drives the projector 42 to rotate relative to its central axis, and the upper end of the projection receptor 41 is fixed to the projector 42 Connected to rotate synchronously.
  • the bottom of the projection receiver 41 is relatively fixed to the upper end of the round table 91, the roller assembly 93 fixed below the round table 91 rolls along the limiting groove 94, and the roller assembly 93 provides support for the round table 91.
  • an outer tube 12 surrounding the holographic projection imaging device 4 is arranged between the mounting base 1 and the upper top 2.
  • the outer tube 12 is a transparent LED display screen, and the supporting stand 11 is arranged outside the outer tube 12.
  • the transparent LED display screen has a display function, and the manufactured outer tube 12 surrounds the holographic projection imaging device 4 and is attached to the supporting vertical plate 11.
  • An additional touch screen is added to the outer cylinder 12 to improve human-computer interaction.
  • the planar image presented by the outer cylinder 12 and the stereoscopic image generated by the holographic projection imaging device 4 cooperate with each other, which has a better advertising effect.
  • the projection receptor 41 includes a holographic projection pyramid and a holographic projection screen made of plexiglass.
  • the projector 42 includes a projection base 44 arranged on top of the projection receptor 41.
  • the projection base 44 is opposite to the projection receptor 41.
  • a projection screen 45 is arranged.
  • the projection receptor 41 includes a 180-degree display cabinet, a 270-degree display cabinet, and a 360-degree display cabinet.
  • the holographic projection pyramid belongs to the 360-degree display cabinet, which is also called three-dimensional holographic imaging, holographic three-dimensional imaging, and holographic pyramid.
  • a four-sided cone made of materials, the audience's sight can penetrate it from any side. Through the principle of surface reflection, the audience can see freely floating images and graphics in the cone-shaped space.
  • the holographic projection screen is a single-sided display, which can present larger three-dimensional images in a single direction.
  • the working method of an advertising device based on 3D holographic projection technology includes the following steps:
  • the projection screen 45 projects a pattern on the projection receptor 41 under the control of the projection module 31 in the control box 3, and under the action of interference and diffraction, the projection screen 45 generates a three-dimensional image in the projection receptor 41;
  • the light sensor 51 on the projector 42 senses the intensity of light received by the projection receptor 41 in all directions and feeds it back to the control box 3, which adjusts the color depth of the color-changing glass group 5 in all directions of the projection receptor 41 ;
  • the camera 43 arranged on the side of the projection base 44 is facing the periphery of the projection receptor 41, recognizes the position of the human body and feeds it back to the control box 3, and the control box 3 controls the rotation direction and the rotation rate of the driving motor 81;
  • the LED display module 32 in the control box 3 controls the outer tube, and the outer tube 12 composed of a transparent LED display screen displays static or dynamic advertising information;
  • the light sensor 51 and the color-changing glass group 5 adjust the color depth accordingly.
  • the rotating mechanism 8 also adjusts the angle accordingly, and adjusts to the appropriate light and shadow angle with the color-changing glass group 5 to achieve the best display effect.
  • step S2 also includes the following steps:
  • the light sensor 51 on the projector 42 and the electrochromic control module 37 in the control box 3 are a positive feedback loop. The higher the light intensity received by the light sensor 51, the electrochromic glass on the surface of the light sensor 51 61 The darker the color is under the control of the electrochromic control module 37;
  • the light sensing signal sensed by the light sensor 51 is transmitted to the hydraulic control module 38 in the control box 3.
  • the hydraulic control module 38 drives the drive assembly 76 to compress the telescopic tube 75, and the telescopic tube 75
  • the dark liquid is injected into the gap 72 of the laminated glass 71.
  • the driving assembly 76 drives the telescopic cylinder 75 to draw out the dark liquid in the gap 72.
  • the analog signal collected by the light sensor 51 is converted into a digital signal by the analog-to-digital conversion module and input into the signal analysis module 36 of the control box 3 for signal analysis.
  • the electrochromic control module 37 or the hydraulic control module 38 receives the feedback signal and controls the color change The glass group 5 changes color.
  • step S3 also includes the following steps:
  • the camera 43 is connected to the human body recognition module 52 and the face recognition module 53 in the control box 3, the collected body motion data is transmitted to the rotation control module 54 in the control box 3, and the collected face data sequentially passes through the information
  • the processing module 33 and the wired/wireless network 34 are transmitted to the database 39 in the remote control center 35;
  • the camera 43 locks the position of the human body, and the rotation control module 54 controls the rotation of the drive motor 81.
  • the drive motor 81 drives the projector 42 and the projection receptor 41 to rotate relative to the center axis of the rotation mechanism 8 through the variable speed gear assembly 82, and a single projection on the receptor 41 The angle of the projection surface is adjusted with the movement of the human body, keeping the projection surface facing the human body.
  • the human body recognition module 52 and the face recognition module 53 jointly collect body shape data of the human body, and the collected information is respectively sent to the remote control center 35 or directly provided to the rotation control module 54 for tracking the position of the human body.
  • the rotating mechanism 8 rotates the holographic projection imaging device 4 on a single side facing the position with the largest number of people to ensure the best advertising effect.
  • the principle of this embodiment is that the color-changing glass group 5 arranged around the projection receptor 41 of the holographic projection imaging device 4 controls the color depth of the projection receptor 41, and cooperates with the light sensor 51 to adapt to changes in light intensity and improve the 3D image display effect in environments with large changes in light intensity such as outdoors; on the one hand, the rotating mechanism 8 can ensure that a single projection surface faces the crowd and obtain the best advertising effect; on the other hand, it can cooperate with the light sensor 51 to adjust the holographic projection The light and shadow angle of the imaging device 4 ensures the stability of the projection effect of the holographic projection imaging device 4.
  • this article mostly uses the mounting base 1, the supporting stand 11, the outer cylinder 12, the upper top 2, the control box 3, the projection module 31, the LED display module 32, the information processing module 33, the wired/wireless network 34, the remote Control center 35, signal analysis module 36, electrochromic control module 37, liquid control module 38, database 39, holographic projection imaging device 4, projection receptor 41, projector 42, camera 43, projection base 44, projection screen 45 , Color-changing glass group 5, light sensor 51, human body recognition module 52, face recognition module 53, rotation control module 54, electric control glass group 6, electrochromic glass 61, liquid control glass group 7, laminated glass 71, gap 72.

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Abstract

一种基于3D全息投影技术的广告装置和工作方法,包括安装基座(1),安装基座(1)上方设置有上顶部(2),安装基座(1)和上顶部(2)之间设置有若干支撑立板(11),安装基座(1)和上顶部(2)之间安装有全息投影成像装置(4),全息投影成像装置(4)包括上下相对固定的投影受体(41)和投影仪(42),投影受体(41)具有贴合或环绕设置在投影受体(41)上的变色玻璃组(5),投影仪(42)侧面布置有若干光感器(51)。解决了全息影像效果受外部光照影响大的问题,具有投影稳定、广告展示效果好等优点。

Description

基于3D全息投影技术的广告装置和工作方法 技术领域
本发明属于全息投影技术领域,具体涉及一种基于3D全息投影技术的广告装置和工作方法。
背景技术
全息投影技术也称虚拟成像技术,是利用干涉和衍射原理记录并再现物体真实的三维图像的记录和再现的技术。其第一步是利用干涉原理记录物体光波信息,此即拍摄过程:被摄物体在激光辐照下形成漫射式的物光束;另一部分激光作为参考光束射到全息底片上,和物光束叠加产生干涉,把物体光波上各点的位相和振幅转换成在空间上变化的强度,从而利用干涉条纹间的反差和间隔将物体光波的全部信息记录下来。记录着干涉条纹的底片经过显影、定影等处理程序后,便成为一张全息图,或称全息照片。其第二步是利用衍射原理再现物体光波信息,这是成象过程:全息图犹如一个复杂的光栅,在相干激光照射下,一张线性记录的正弦型全息图的衍射光波一般可给出两个象,即原始象(又称初始象)和共轭象。再现的图像立体感强,具有真实的视觉效应。全息图的每一部分都记录了物体上各点的光信息,故原则上它的每一部分都能再现原物的整个图像,通过多次曝光还可以在同一张底片上记录多个不同的图像,而且能互不干扰地分别显示出来。
目前全息投影中运用较为成熟的通常为幻影成像等伪全息技术,由立体模型场景、造型灯光系统、光学成像系统、影视播放系统、计算机多媒体系统、音响系统及控制系统组成,可以实现大型产品等的逼真展示。但在实际的运用中,对于光线强度要求较为苛刻,在开放环境或光照较强的环境内显示效果较差。除此之外,全息投影装置往往为固定结构,无法全方位地向观众展示立体图像。
技术问题
为了解决现有技术存在的不足,人们进行了长期的探索,提出了各式各样的解决方案。例如,中国专利文献公开了一种投影幕可调的全息投影装置[201810575437.6],其包括底框、调节装置和全息投影装置,底框上方设有延伸板,支撑框底部固定在底框内表面,支撑框上设有导杆一和导杆二,支撑框上表面设有转动座,螺杆可转动连接在支撑框上下板之间,螺杆上设有螺母块,蜗杆可转动连接在支撑框上方两侧板之间,升降座两侧穿过导杆一和导杆二,旋转杆穿过转动座,旋转台固定在旋转杆上端,全息投影仪固定在延伸板下表面,全息投影幕安装在旋转台中间位置。
上述方案在一定程度上解决了全息投影装置无法全方位展示立体图像的问题,但是该方案依然存在着诸多不足,例如,对于光照变化适应性较差等问题。
技术解决方案
本发明的目的是针对上述问题,提供一种设计合理,光照变化适应性好的基于3D全息投影技术的广告装置。
本发明的另一个目的是针对上述问题,提供一种设计合理,光照变化适应性好的基于3D全息投影技术的广告装置的工作方法。
为达到上述目的,本发明采用了下列技术方案:本基于3D全息投影技术的广告装置,包括安装基座,安装基座上方设置有上顶部,安装基座和上顶部之间设置有若干支撑立板,安装基座和上顶部之间安装有全息投影成像装置,全息投影成像装置包括上下相对固定的投影受体和投影仪,投影受体具有贴合或环绕设置在投影受体上的变色玻璃组,投影仪侧面布置有若干光感器。在常规的全息投影成像装置内的投影受体上布置可改变投影受体颜色深度的变色玻璃组,配合光感器及时检测光照强度变化,保证全息投影成像装置展现最佳的立体成像效果。
在上述的基于3D全息投影技术的广告装置中,变色玻璃组包括电控玻璃组和液控玻璃组。变色玻璃组可采用两种不同的控制方式来改变变色玻璃组的颜色和深度。
在上述的基于3D全息投影技术的广告装置中,电控玻璃组包括贴合或环绕布置在投影受体上的电致变色玻璃,液控玻璃组包括贴合或环绕布置在投影受体上的夹层玻璃,夹层玻璃两侧封闭且内部留有间隙,间隙与设置在夹层玻璃底部的配液管连通,配液管通过软管与设置在安装基座内的伸缩筒连通,伸缩筒的可伸缩端与驱动组件联动。电致变色玻璃受电场控制改变颜色深度,夹层玻璃通过在间隙内填充深色液体来提高夹层玻璃的颜色深度,其内部液体流动由驱动组件和伸缩筒推拉控制。
在上述的基于3D全息投影技术的广告装置中,投影仪的侧面分别布置有摄像头,投影仪与上顶部之间设置有转动机构,投影受体与安装基座之间设置有转动限位机构。全息投影成像装置上下方分别设置转动机构和转动限位机构,其内部的投影受体和投影仪保持同步转动。
在上述的基于3D全息投影技术的广告装置中,转动机构包括设置在上顶部内部的驱动电机,驱动电机通过变速齿轮组件与投影仪的中心连接,转动限位机构包括设置在投影受体底部的圆台,圆台与设置在安装基座上的圆槽相对,圆台下方安装有若干相对圆台中心轴线对称且与圆槽底部相对滚动的滚轮组件,圆槽底部开有若干与滚轮组件相对的限位槽。驱动电机提供给全息投影成像装置的转动动力,滚轮组件沿限位槽滚动保持转动机构稳定转动。
在上述的基于3D全息投影技术的广告装置中,安装基座和上顶部之间设置有相对全息投影成像装置环绕的外筒,外筒为透明LED显示屏,支撑立板设置在外筒外侧。透明LED显示屏制成的外筒可展示动态或静态的广告信息,充分利用外筒表面。
在上述的基于3D全息投影技术的广告装置中,投影受体包括有机玻璃制成的全息投影金字塔和全息投影屏,投影仪包括设置在投影受体顶部的投影基座,投影基座与投影受体相对的一侧布置有投影屏。投影受体可采用不同的展示结构,全息投影金字塔适用于全方位展示,全息投影屏对于单向展示效果好。
上述的基于3D全息投影技术的广告装置的工作方法如下所述,本基于3D全息投影技术的广告装置的工作方法包括如下步骤:
S1:投影屏在控制箱内的投影模块的控制下,向投影受体投射图案,在干涉和衍射的作用下,投影受体内生成三维立体图像;
S2:投影仪上的光感器感应投影受体各个方向所受的光线强弱并反馈至控制箱内,控制箱调节投影受体各个方向的变色玻璃组的颜色深度;
S3:投影基座侧面布置的摄像头正对投影受体周围,识别人体所在位置并反馈至控制箱,控制箱控制驱动电机的转动方向和转动速率;
S4:控制箱内的LED显示模块控制外筒,透明LED显示屏构成的外筒显示静态或动态的广告信息;
S5:控制箱内的投影模块和LED显示模块与信息处理模块相连,信息处理模块通过有线/无线网络与远程控制中心完成数据传输。
在上述的基于3D全息投影技术的广告装置的工作方法中,步骤S2还包括如下步骤:
S21:光感器感应到的光感信号传输至控制箱的信号分析模块内,之后信号分析模块发送指令给控制箱;
S22:投影仪上的光感器与控制箱内的电致变色控制模块为正反馈回路,光感器所受光照强度越高,光感器所在面的电致变色玻璃在电致变色控制模块控制下颜色越深;
S23:光感器感应到的光感信号传输至控制箱内的液控模块,当光照强度达到阀值时,液控模块驱使驱动组件压缩伸缩筒,将伸缩筒内的深色液体注入夹层玻璃的间隙内,当光照强度低于阀值时,驱动组件驱动伸缩筒将间隙内的深色液体抽出。
在上述的基于3D全息投影技术的广告装置的工作方法中,步骤S3还包括如下步骤:
S31:摄像头与控制箱内的人体识别模块和人脸识别模块相连,采集到的人体运动数据传输至控制箱内的转动控制模块内,采集到的人脸数据依次通过信息处理模块和有线/无线网络传输至远程控制中心内的数据库内;
S32:摄像头锁定人体位置,转动控制模块控制驱动电机转动,驱动电机通过变速齿轮组件带动投影仪与投影受体相对转动机构中心轴线转动,投影受体上的单个投影面随人体运动而调整角度,保持投影面正对人体。
有益效果
与现有的技术相比,本发明的优点在于:在投影受体上布置变色玻璃组,由光感器反馈调节变色玻璃组的颜色深度,从而适应光照强度变化较大的环境;转动机构控制投影受体上的投影面位置,保证投影面始终正对观众,保持最佳的展示效果;自带数据采集模块,配合远程控制中心,灵活调整广告内容。
附图说明
图1是本发明的结构示意图;
图2是本发明的另一个视角的结构示意图;
图3是本发明的整体的结构示意图;
图4是本发明的投影受体和圆台的装配示意图;
图5是本发明的安装基座的结构示意图;
图6是本发明的夹层玻璃的结构示意图;
图7是本发明的电致变色玻璃的结构示意图;
图8是本发明的液控玻璃组的结构示意图;
图9是本发明的控制箱的结构框图;
图中,安装基座1、支撑立板11、外筒12、上顶部2、控制箱3、投影模块31、LED显示模块32、信息处理模块33、有线/无线网络34、远程控制中心35、信号分析模块36、电致变色控制模块37、液控模块38、数据库39、全息投影成像装置4、投影受体41、投影仪42、摄像头43、投影基座44、投影屏45、变色玻璃组5、光感器51、人体识别模块52、人脸识别模块53、转动控制模块54、电控玻璃组6、电致变色玻璃61、液控玻璃组7、夹层玻璃71、间隙72、配液管73、软管74、伸缩筒75、驱动组件76、转动机构8、驱动电机81、变速齿轮组件82、转动限位机构9、圆台91、圆槽92、滚轮组件93、限位槽94。
本发明的最佳实施方式
下面结合附图和具体实施方式对本发明做进一步详细的说明。
如图1-9所示,本基于3D全息投影技术的广告装置,包括安装基座1,安装基座1上方设置有上顶部2,安装基座1和上顶部2之间设置有若干支撑立板11,安装基座1和上顶部2之间安装有全息投影成像装置4,全息投影成像装置4包括上下相对固定的投影受体41和投影仪42,投影受体41具有贴合或环绕设置在投影受体41上的变色玻璃组5,投影仪42侧面布置有若干光感器51。全息投影成像装置4采用幻影成像这种伪全息显像方式,其中的投影受体41采用有机玻璃或其他成像效果好的透明板,变色玻璃组5覆盖在投影受体41表面或竖立在投影受体41周围,同时变色玻璃组5也可直接充当投影受体41。各个方向布置独立的光感器51分别检测全息投影成像装置4周围环境的光照强度变化,并将光照信息反馈至控制箱3内,从而控制变色玻璃组5颜色深度,保证良好的显示效果。
具体地,变色玻璃组5包括电控玻璃组6和液控玻璃组7。变色玻璃组5内的电控玻璃组6和液控玻璃组7分别采用不同的工作原理,其中电控玻璃组6在调节变色玻璃组5颜色深度上具有较好的效果,液控玻璃组7成本较低,根据实际情况选择合适的变色玻璃组5。
优选地,电控玻璃组6包括贴合或环绕布置在投影受体41上的电致变色玻璃61,液控玻璃组7包括贴合或环绕布置在投影受体41上的夹层玻璃71,夹层玻璃71两侧封闭且内部留有间隙72,间隙72与设置在夹层玻璃71底部的配液管73连通,配液管73通过软管74与设置在安装基座1内的伸缩筒75连通,伸缩筒75的可伸缩端与驱动组件76联动。电致变色玻璃61在外加电场的作用下发生稳定、可逆的颜色变化。其结构包括玻璃衬底,透明导电层,电致变色层,离子导体层和离子贮藏层。工作时,两个透明导电层之间加上一定的电压,电致变色层材料在电压作用下发生氧化还原反应使颜色发生变化;而电解质层则由特殊的导电材料组成,如包含有高氯酸锂、高氯酸钠等的溶液或固体电解质材料;离子存储层在电致变色材料发生氧化还原反应时起到储存相应的反离子,保持整个体系电荷平衡的作用,离子存储层也可以为一种与前面一层电致变色材料变色性能相反的电致变色材料,这样可以起到颜色叠加或互补的作用。如电致变色层材料采用的是阳极氧化变色材料,则离子存储层可采用阴极还原变色材料。
其中,液控玻璃组7的夹层玻璃71的间隙72在伸缩筒75伸缩作用下注入有色液体,从而改变液控玻璃组7的整体颜色。当不需要加深夹层玻璃71颜色时,伸缩筒75回缩,从而将间隙72内填充的有色液体抽回。在气压作用下,间隙72基本无残余液体。
进一步地,投影仪42的侧面分别布置有摄像头43,投影仪42与上顶部2之间设置有转动机构8,投影受体41与安装基座1之间设置有转动限位机构9。摄像头43设置在投影仪42的侧面,与控制箱3连接。转动机构8与转动限位机构9配合,保证投影仪42和投影受体41同步转动。
更进一步地,转动机构8包括设置在上顶部2内部的驱动电机81,驱动电机81通过变速齿轮组件82与投影仪42的中心连接,转动限位机构9包括设置在投影受体41底部的圆台91,圆台91与设置在安装基座1上的圆槽92相对,圆台91下方安装有若干相对圆台91中心轴线对称且与圆槽92底部相对滚动的滚轮组件93,圆槽92底部开有若干与滚轮组件93相对的限位槽94。转动机构8内的驱动电机81转速较高,其转矩通过变速齿轮组件82内变速齿轮传递至投影仪42上,带动投影仪42相对其中心轴线转动,投影受体41上端与投影仪42固定连接同步转动。投影受体41底部与圆台91上端相对固定,圆台91下方固定的滚轮组件93沿限位槽94滚动,滚轮组件93提供给圆台91支撑力。
除此之外,安装基座1和上顶部2之间设置有相对全息投影成像装置4环绕的外筒12,外筒12为透明LED显示屏,支撑立板11设置在外筒12外侧。透明LED显示屏具有显像功能,所制成的外筒12环绕在全息投影成像装置4周围,且与支撑立板11贴合。外筒12上额外增加触控屏,提高人机交互性。外筒12所呈现的平面图像与全息投影成像装置4生成的立体图像互相配合,具有较好的广告宣传效果。
同时,投影受体41包括有机玻璃制成的全息投影金字塔和全息投影屏,投影仪42包括设置在投影受体41顶部的投影基座44,投影基座44与投影受体41相对的一侧布置有投影屏45。投影受体41包括180度展示柜、270度展示柜、360度展示柜,其中全息投影金字塔属于360度展示柜,也被称之为三维全息影像、全息三维成像、全息金字塔,它是由透明材料制成的四面锥体,观众的视线能从任何一面穿透它,通过表面反射原理,观众能从锥形空间里看到自由飘浮的影像和图形。四面视频成像将光信号反射到这个锥体中的特殊棱镜上,汇集到一起后形成具有真实维度空间的立体影像。全息投影屏为单面展示,在单个方向上可呈现较大的三维影像。
可见地,在基于3D全息投影技术的广告装置的工作方法中,包括如下步骤:
S1:投影屏45在控制箱3内的投影模块31的控制下,向投影受体41投射图案,在干涉和衍射的作用下,投影受体41内生成三维立体图像;
S2:投影仪42上的光感器51感应投影受体41各个方向所受的光线强弱并反馈至控制箱3内,控制箱3调节投影受体41各个方向的变色玻璃组5的颜色深度;
S3:投影基座44侧面布置的摄像头43正对投影受体41周围,识别人体所在位置并反馈至控制箱3,控制箱3控制驱动电机81的转动方向和转动速率;
S4:控制箱3内的LED显示模块32控制外筒,透明LED显示屏构成的外筒12显示静态或动态的广告信息;
S5:控制箱3内的投影模块31和LED显示模块32与信息处理模块33相连,信息处理模块33通过有线/无线网络34与远程控制中心35完成数据传输。
投影屏45向投影受体41投射图案后,光感器51和变色玻璃组5随之适应性调节颜色深度。转动机构8也随之调整角度,配合变色玻璃组5调整至合适的光影角度,达到最佳的显示效果。
深入地,步骤S2还包括如下步骤:
S21:光感器51感应到的光感信号传输至控制箱3的信号分析模块36内,之后信号分析模块36发送指令给控制箱3;
S22:投影仪42上的光感器51与控制箱3内的电致变色控制模块37为正反馈回路,光感器51所受光照强度越高,光感器51所在面的电致变色玻璃61在电致变色控制模块37控制下颜色越深;
S23:光感器51感应到的光感信号传输至控制箱3内的液控模块38,当光照强度达到阀值时,液控模块38驱使驱动组件76压缩伸缩筒75,将伸缩筒75内的深色液体注入夹层玻璃71的间隙72内,当光照强度低于阀值时,驱动组件76驱动伸缩筒75将间隙72内的深色液体抽出。
光感器51采集到的模拟信号通过模数转换模块转换为数字信号输入控制箱3的信号分析模块36内进行信号分析,电致变色控制模块37或者液控模块38收到反馈信号后控制变色玻璃组5改变颜色。
很明显,步骤S3还包括如下步骤:
S31:摄像头43与控制箱3内的人体识别模块52和人脸识别模块53相连,采集到的人体运动数据传输至控制箱3内的转动控制模块54内,采集到的人脸数据依次通过信息处理模块33和有线/无线网络34传输至远程控制中心35内的数据库39内;
S32:摄像头43锁定人体位置,转动控制模块54控制驱动电机81转动,驱动电机81通过变速齿轮组件82带动投影仪42与投影受体41相对转动机构8中心轴线转动,投影受体41上的单个投影面随人体运动而调整角度,保持投影面正对人体。
人体识别模块52和人脸识别模块53共同采集人体的身形数据,所采集的信息分别发送给远程控制中心35或直接提供给转动控制模块54用于追踪人体位置。转动机构8转动全息投影成像装置4上单面正对人数最多的位置,保证获得最佳的广告效果。
综上所述,本实施例的原理在于:全息投影成像装置4的投影受体41周围布置的变色玻璃组5控制投影受体41的颜色深浅,配合光感器51适应光照强度变化,提高在户外等光照强度变化较大的环境中的三维影像显示效果;转动机构8一方面可保证单个投影面正对人群,获得最佳的广告效果,另一方面与光感器51配合,调整全息投影成像装置4的光影角度,保证全息投影成像装置4的投影效果稳定性。
本文中所描述的具体实施例仅仅是对本发明精神作举例说明。本发明所属技术领域的技术人员可以对所描述的具体实施例做各种各样的修改或补充或采用类似的方式替代,但并不会偏离本发明的精神或者超越所附权利要求书所定义的范围。
尽管本文较多地使用了安装基座1、支撑立板11、外筒12、上顶部2、控制箱3、投影模块31、LED显示模块32、信息处理模块33、有线/无线网络34、远程控制中心35、信号分析模块36、电致变色控制模块37、液控模块38、数据库39、全息投影成像装置4、投影受体41、投影仪42、摄像头43、投影基座44、投影屏45、变色玻璃组5、光感器51、人体识别模块52、人脸识别模块53、转动控制模块54、电控玻璃组6、电致变色玻璃61、液控玻璃组7、夹层玻璃71、间隙72、配液管73、软管74、伸缩筒75、驱动组件76、转动机构8、驱动电机81、变速齿轮组件82、转动限位机构9、圆台91、圆槽92、滚轮组件93、限位槽94等术语,但并不排除使用其它术语的可能性。使用这些术语仅仅是为了更方便地描述和解释本发明的本质;把它们解释成任何一种附加的限制都是与本发明精神相违背的。

Claims (10)

  1. 一种基于3D全息投影技术的广告装置,其特征在于,包括安装基座(1),所述的安装基座(1)上方设置有上顶部(2),所述的安装基座(1)和上顶部(2)之间设置有若干支撑立板(11),所述的安装基座(1)和上顶部(2)之间安装有全息投影成像装置(4),所述的全息投影成像装置(4)包括上下相对固定的投影受体(41)和投影仪(42),所述的投影受体(41)具有贴合或环绕设置在投影受体(41)上的变色玻璃组(5),所述的投影仪(42)侧面布置有若干光感器(51)。
  2. 根据权利要求1所述的基于3D全息投影技术的广告装置,其特征在于,所述的变色玻璃组(5)包括电控玻璃组(6)和液控玻璃组(7)。
  3. 根据权利要求2所述的基于3D全息投影技术的广告装置,其特征在于,所述的电控玻璃组(6)包括贴合或环绕布置在投影受体(41)上的电致变色玻璃(61),所述的液控玻璃组(7)包括贴合或环绕布置在投影受体(41)上的夹层玻璃(71),所述的夹层玻璃(71)两侧封闭且内部留有间隙(72),所述的间隙(72)与设置在夹层玻璃(71)底部的配液管(73)连通,所述的配液管(73)通过软管(74)与设置在安装基座(1)内的伸缩筒(75)连通,所述的伸缩筒(75)的可伸缩端与驱动组件(76)联动。
  4. 根据权利要求1所述的基于3D全息投影技术的广告装置,其特征在于,所述的投影仪(42)的侧面分别布置有摄像头(43),所述的投影仪(42)与上顶部(2)之间设置有转动机构(8),所述的投影受体(41)与安装基座(1)之间设置有转动限位机构(9)。
  5. 根据权利要求4所述的基于3D全息投影技术的广告装置,其特征在于,所述的转动机构(8)包括设置在上顶部(2)内部的驱动电机(81),所述的驱动电机(81)通过变速齿轮组件(82)与投影仪(42)的中心连接,所述的转动限位机构(9)包括设置在投影受体(41)底部的圆台(91),所述的圆台(91)与设置在安装基座(1)上的圆槽(92)相对,所述的圆台(91)下方安装有若干相对圆台(91)中心轴线对称且与圆槽(92)底部相对滚动的滚轮组件(93),所述的圆槽(92)底部开有若干与滚轮组件(93)相对的限位槽(94)。
  6. 根据权利要求1所述的基于3D全息投影技术的广告装置,其特征在于,所述的安装基座(1)和上顶部(2)之间设置有相对全息投影成像装置(4)环绕的外筒(12),所述的外筒(12)为透明LED显示屏,所述的支撑立板(11)设置在外筒(12)外侧。
  7. 根据权利要求1所述的基于3D全息投影技术的广告装置,其特征在于,所述的投影受体(41)包括有机玻璃制成的全息投影金字塔和全息投影屏,所述的投影仪(42)包括设置在投影受体(41)顶部的投影基座(44),所述的投影基座(44)与投影受体(41)相对的一侧布置有投影屏(45)。
  8. 根据权利要求1-7中任意一项所述的基于3D全息投影技术的广告装置的工作方法,其特征在于,本方法包括如下步骤:S1:投影屏(45)在控制箱(3)内的投影模块(31)的控制下,向投影受体(41)投射图案,在干涉和衍射的作用下,投影受体(41)内生成三维立体图像;S2:投影仪(42)上的光感器(51)感应投影受体(41)各个方向所受的光线强弱并反馈至控制箱(3)内,控制箱(3)调节投影受体(41)各个方向的变色玻璃组(5)的颜色深度;S3:投影基座(44)侧面布置的摄像头(43)正对投影受体(41)周围,识别人体所在位置并反馈至控制箱(3),控制箱(3)控制驱动电机(81)的转动方向和转动速率;S4:控制箱(3)内的LED显示模块(32)控制外筒,透明LED显示屏构成的外筒(12)显示静态或动态的广告信息;S5:控制箱(3)内的投影模块(31)和LED显示模块(32)与信息处理模块(33)相连,信息处理模块(33)通过有线/无线网络(34)与远程控制中心(35)完成数据传输。
  9. 根据权利要求9所述的基于3D全息投影技术的广告装置的工作方法,其特征在于,步骤S2还包括如下步骤:S21:光感器(51)感应到的光感信号传输至控制箱(3)的信号分析模块(36)内,之后信号分析模块(36)发送指令给控制箱(3);S22:投影仪(42)上的光感器(51)与控制箱(3)内的电致变色控制模块(37)为正反馈回路,光感器(51)所受光照强度越高,光感器(51)所在面的电致变色玻璃(61)在电致变色控制模块(37)控制下颜色越深;S23:光感器(51)感应到的光感信号传输至控制箱(3)内的液控模块(38),当光照强度达到阀值时,液控模块(38)驱使驱动组件(76)压缩伸缩筒(75),将伸缩筒(75)内的深色液体注入夹层玻璃(71)的间隙(72)内,当光照强度低于阀值时,驱动组件(76)驱动伸缩筒(75)将间隙(72)内的深色液体抽出。
  10. 根据权利要求9所述的基于3D全息投影技术的广告装置的工作方法,其特征在于,步骤S2还包括如下步骤:S21:光感器(51)感应到的光感信号传输至控制箱(3)的信号分析模块(36)内,之后信号分析模块(36)发送指令给控制箱(3);S22:投影仪(42)上的光感器(51)与控制箱(3)内的电致变色控制模块(37)为正反馈回路,光感器(51)所受光照强度越高,光感器(51)所在面的电致变色玻璃(61)在电致变色控制模块(37)控制下颜色越深;S23:光感器(51)感应到的光感信号传输至控制箱(3)内的液控模块(38),当光照强度达到阀值时,液控模块(38)驱使驱动组件(76)压缩伸缩筒(75),将伸缩筒(75)内的深色液体注入夹层玻璃(71)的间隙(72)内,当光照强度低于阀值时,驱动组件(76)驱动伸缩筒(75)将间隙(72)内的深色液体抽出。
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