CN113777798A - Air imaging device for advertisement display system and interactive advertisement display system - Google Patents

Abstract

The invention discloses an air imaging device for an advertisement display system, which is arranged in the advertisement display system and comprises: an image source for generating a display picture; and the imaging magnifier magnifies the picture generated by the image source and realizes real image in the air. The interactive advertisement display system adopts the air imaging device for the advertisement display system, and a gesture recognition device is further arranged near the real image. The invention has the advantages that: the mobile portable device can display a large picture in a small volume, so that a user can see the picture more clearly, the accuracy of the gesture recognition device is effectively improved, the mobile portable device can be fixed in a shop, and the mobile portable device can be made into a mobile portable device, so that better experience is provided for the user.

Description

Air imaging device for advertisement display system and interactive advertisement display system

Technical Field

The invention relates to an air imaging device for an advertisement display system and an interactive advertisement display system.

Background

Most of advertisement display of current merchants still display pictures through a display screen, belongs to plane display, and needs close observation and operation of users although a touch screen is added, and the advertisement screen is generally arranged in public places, frequently contacts with various users, and has potential safety hazards in sanitation.

Although some air display screens are also available in the market for displaying advertisements, the current air display screens project pictures into mist air, and water mist needs to be dispersed in the air firstly, and the mode is also easy to leave viruses in the water vapor, so that cross infection is caused.

The existing air imaging system adopts a dihedral corner reflector or a strip-shaped reflector, and utilizes the reflection principle of light rays, so that a real image formed by the air imaging system is as large as a picture displayed by an image source, the image source cannot be greatly displayed in consideration of cost and occupied space, the air imaging system is only used for displaying small pictures, the application scene of the air imaging system is greatly limited, and the problem that the operation of a user cannot be identified easily occurs due to the fact that the precision of a gesture recognition device is not too high, so that the user often finds the situation of wrong recognition or incapability of recognizing the gesture of the user when using the air imaging system, for example, when the user needs to execute a picture, the gesture recognition device cannot judge which command the user is right at all because the picture is too small or the finger of the user is thick, and for example, the user needs to turn a page to make a sliding gesture, because the picture is smaller, the sliding distance of the fingers of the user is smaller, and the gesture recognition device can possibly not recognize that the hands of the user slide, so that the experience of the user is greatly reduced.

Disclosure of Invention

The invention aims to provide an air imaging device for an advertisement display system and an interactive advertisement display system, which can effectively solve the problems of small display picture and low interactive identification rate of the conventional air imaging advertisement display system.

In order to solve the technical problems, the invention is realized by the following technical scheme: the air imaging device for the advertisement display system is installed in the advertisement display system and comprises:

an image source for generating a display picture;

and the imaging magnifier magnifies the picture generated by the image source and realizes real image in the air.

Preferably, the imaging magnifier is one of a fresnel lens, a binary diffractive surface lens, a spherical mirror, an aspheric lens, a free-form surface lens or a flat plate microlens. Can obtain a single-chip imaging magnifier with higher imaging quality.

Preferably, the imaging magnifier is a Fresnel lens group, and comprises at least two pieces of Fresnel lenses arranged in parallel, wherein each piece of Fresnel lens comprises a substrate and straight teeth arranged on the substrate in parallel, and the straight teeth of the adjacent Fresnel lenses are not parallel. The Fresnel lens group is adopted, the principle that a long-strip reflector or a dihedral corner reflector is adopted for imaging by reflection in the prior art is changed, and the real image amplified in the air by the refraction principle of the Fresnel lens group is utilized, so that the image which is much larger than an image source can be obtained under the condition that the image source is smaller, the weight of the whole device can be effectively reduced compared with the traditional air imaging system, and the production cost can be effectively reduced. For ordinary annular tooth and the fresnel lens that stacks in parallel only carry out the magnification, fresnel lens group in this system adopts the straight tooth structure to adjacent fresnel lens's straight tooth nonparallel, the light that passes first fresnel lens is revised through second fresnel lens, can effectively reduce the aberration, obtains clearer image, is favorable to correcting the distortion simultaneously, ensures that the image periphery also has higher definition.

Preferably, the straight teeth of adjacent fresnel lenses are perpendicular to each other, and the vertical state image is the best, so that the image tilt rotation can be avoided.

Preferably, the straight teeth are far away from the top end of the substrate and are provided with edge lines, the edge lines are parallel to the straight lines of the substrate, refraction and convergence of light rays are facilitated, a better image correction effect is achieved, and a clearer image is formed.

Preferably, the straight teeth are triangular prisms, one side face of each straight tooth is tightly attached to the substrate, the straight teeth of the triangular prisms are easy to manufacture, the good aberration eliminating effect is achieved, and meanwhile the yield is high.

Preferably, the cross section of straight-tooth includes end to end's base and two hypotenuses in proper order, the base is hugged closely on the base plate, one the hypotenuse is the pitch arc, and another the hypotenuse is pitch arc or straight line, and the pitch arc is better than straight line aberration elimination effect, and the best is that two hypotenuses all are the pitch arc.

Preferably, two adjacent fresnel lenses are arranged oppositely; or two adjacent Fresnel lenses are arranged in the same direction; or two adjacent Fresnel lenses are arranged in a back direction; the best optical performance can be obtained by the opposite arrangement, the opposite position between the two Fresnel lenses can be better fixed by the back arrangement, a better optical effect can be obtained by the same-direction arrangement, and the Fresnel lenses are arranged in the same direction to be beneficial to the superposition of the Fresnel lenses.

Preferably, the two Fresnel lenses are tightly attached together; or a gap is reserved between the two Fresnel lenses. The Fresnel lens group is tightly attached to the lens holder, so that the thickness of the Fresnel lens group can be reduced as much as possible, and the whole device is thinner.

Preferably, the imaging magnifier is an array lens assembly, the array lens assembly comprises a plurality of lenses, and all the lenses are arranged in a matrix manner. Compared with the single Fresnel lens adopted as an imaging unit, the array lens group is composed of a plurality of lenses arranged in a matrix mode, so that an imaged real image is finer and finer, aberration can be effectively reduced, and a clearer image can be obtained.

Preferably, the lens is a micro lens or a fresnel lens. The micro lens can enable the array lens group to have more lens units, so that the fineness of the picture is improved; fresnel lens, Fresnel lens low price easily makes to can be with the lighter and thinner that whole array lens group did.

Preferably, the imaging magnifier is one of a fresnel reflector, a binary diffractive surface reflector, a spherical reflector, an aspheric reflector or a free-form surface reflector. By utilizing the principle of reflection and amplification, the position between the image source and the imaging magnifier can be more flexibly arranged.

Preferably, a first reflector is further arranged on a light path between the image source and the imaging magnifier. The position relation between the image source and the imaging magnifier is changed, and the imaging magnifier can be arranged in a narrow space more easily.

Preferably, a second reflecting mirror is arranged on a light path between the imaging magnifier and the real image, so that the position between the real image and the imaging magnifier can be conveniently adjusted.

Preferably, the image source is one or more light-emitting sources, and the appropriate image source is selected according to the accuracy of the image to be displayed.

Preferably, when the image source is a plurality of light sources, the light sources are arranged in a matrix form, so that contents to be displayed by different light sources can be edited more easily.

Preferably, the image source is one of an LCD, an LED, an OLED, an LCOS or a projector, so that the cost and the threshold of the image source are reduced, and the adaptability is wider.

Preferably, the projector is a DLP projector or a laser MEMS module, a diffusion sheet is further arranged between the projector and the imaging magnifier, the diffusion sheet is added to improve the divergence angle of an image source, and the angle of observing a real image by human eyes is enlarged.

Preferably, the diffusion sheet has a light transmittance of 70% ± 10%, which is too high, so that an observer can see bright projected spots of the projector, and the light transmittance is too low, which may cause image blur and insufficient brightness.

Preferably, the size of the imaging magnifier is larger than that of the real image, so that a user can watch the complete image.

The interactive advertisement display system adopts the air imaging device for the advertisement display system, and a gesture recognition device is further arranged near the real image.

Preferably, the interactive advertisement display system comprises a voice recognition device which collects the combination of the voice of the user and the real image display content, and the voice command of the user is recognized by the voice recognition device to be combined with the real image content, so that the user experience is improved.

Preferably, the image source and the formation of image magnifying glass are installed in advertisement display system's casing, it has the transparent window that lets the light through the formation of image magnifying glass shoot out to open on the casing, gesture recognition device sets up in near the casing of real image, and such arrangement does benefit to the protection image source and does not receive accidental damage, can not shelter from the position of formation of image magnifying glass simultaneously, and gesture recognition device also can not receive the instruction of the discernment user that blocks, easily user operation.

Preferably, a plurality of air imaging devices for the advertisement display system are arranged in the advertisement display system, the advantage of small size of the air imaging device for the advertisement display system is fully utilized, a plurality of service pictures share one advertisement display system, multiple users can be served at the same time, and space is further saved.

Compared with the prior art, the invention has the advantages that: adopt the formation of image magnifying glass as the imaging element, make the image through the formation of image magnifying glass become the real image of enlargeing to realize that less image source presents great image, also can be under the prerequisite that does not change original air imaging mechanism volume, can obtain bigger image, for example some portable advertisement display systems, usable space is little itself, can become great image, and the content of demonstration also can be abundanter. The larger image can be seen more clearly by the user, and more details of the product can be displayed more clearly.

And the gesture recognition device is matched, because the image becomes larger, the picture displaying the same content is also larger, so that the gesture recognition device can easily recognize which command pattern the gesture of the user specifically touches, and when the user performs gesture sliding operation, the gesture sliding distance is correspondingly increased, so that the precision requirement on the gesture recognition device is greatly reduced, the gesture recognition device can more accurately recognize the operation of the user, and the experience of the user is enhanced.

The space occupied by the advertisement display system can be greatly reduced, in some shops or advertisement display places, the air imaging device for the advertisement display system can present a larger image without occupying a large space, the space occupied by the device is fully utilized and saved, and the gesture recognition device is matched, so that physical contact is avoided, the infection of germs is avoided, the safety of a user can be effectively protected when the user deals with contact type infectious diseases, and the virus propagation is prevented. The system can also be directly projected outwards from the transparent show window of the shop along the street, users can interact to know products without entering the shop, the whole interactive advertisement display system can be placed in the show window without worrying about artificial damage or influence of rainwater, and the normal functions and the quantity of displayed goods of the original show window cannot be influenced.

Drawings

FIG. 1 is a schematic view of an air imaging device for an advertisement display system according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of an air imaging device for an advertising display system according to a first embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a second embodiment of an air imaging device for an advertisement display system according to the present invention;

FIG. 4 is a schematic view of an air imaging device for an advertisement display system according to a second embodiment of the present invention;

FIG. 5 is a first combination of adjacent Fresnel lenses according to an embodiment of the air imaging apparatus for an advertisement display system of the present invention;

FIG. 6 is a second combination of adjacent Fresnel lenses in an embodiment of an air imaging apparatus for an advertisement display system according to the present invention;

FIG. 7 is a third combination of adjacent Fresnel lenses in an embodiment of an air imaging apparatus for an advertisement display system according to the present invention;

FIG. 8 is a first embodiment of a straight tooth of a Fresnel lens in an air imaging apparatus for an advertising display system according to the present invention;

FIG. 9 is a second form of the straight teeth of the Fresnel lens in the first embodiment of the air imaging device for an advertisement display system according to the present invention;

FIG. 10 is a third embodiment of the present invention showing the straight teeth of the Fresnel lens in the first embodiment of the air imaging apparatus for an advertisement display system;

FIG. 11 is a schematic structural diagram of a single Fresnel lens in an air imaging device for an advertisement display system according to an embodiment of the present invention;

FIG. 12 is a schematic view of an air imaging apparatus for an advertisement display system according to a third embodiment of the present invention;

FIG. 13 is a schematic view of an array lens assembly formed by microlenses according to a third embodiment of the present invention;

FIG. 14 is a schematic structural diagram of an array lens assembly formed by Fresnel lenses according to a third embodiment of the air imaging device for an advertisement display system of the present invention;

FIG. 15 is a schematic diagram of an air imaging device for an advertisement display system according to a fourth embodiment of the present invention, which employs LCD, LED, OLED or LCOS imaging;

FIG. 16 is a schematic view of an air imaging apparatus for an advertisement display system according to a fourth embodiment of the present invention, in which a projector is used as a light source;

FIG. 17 is a schematic diagram of an air imaging device for an advertisement display system according to a fifth embodiment of the present invention, which employs LCD, LED, OLED or LCOS imaging;

FIG. 18 is a schematic view of an air imaging apparatus for an advertisement display system according to a fifth embodiment of the present invention, in which a projector is used as a light source;

FIG. 19 is an imaging schematic diagram of a sixth embodiment of an air imaging apparatus for an advertising display system according to the present invention;

FIG. 20 is an imaging schematic of the interactive advertising display system of the present invention;

FIG. 21 is an imaging schematic employing a reflective imaging magnifier in the interactive advertising display system of the present invention;

FIG. 22 is a schematic diagram of an interactive advertising display system according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The first embodiment is as follows:

referring to fig. 1 and 2, a first embodiment of an air imaging device for an advertisement display system according to the present invention is an air imaging device for an advertisement display system, which is installed in an advertisement display system, and includes: an image source 1 for generating a display picture; and an image magnifier 3 for magnifying the picture generated by the image source 1 and making the picture be real-imaged 5 in the air.

The advertisement display system adopted in the scheme comprises a fixed advertisement display device or a movable advertisement display device, wherein the fixed advertisement display device is relatively large in size, can display a large picture, is generally fixed in shops, markets or booths of exhibitions, and the movable advertisement display device is convenient for business personnel to carry about to go out for display. The imaging magnifier 3 is adopted as an imaging unit, so that the image passing through the imaging magnifier 3 is changed into an amplified real image 5, and a smaller image source 1 presents a larger image, namely the larger image can be obtained on the premise of not changing the volume of the original air imaging mechanism, the image as large as possible can be obtained in a limited space, thus a clearer picture can be provided, more contents can be displayed on the picture, and more services are provided. It is generally preferred that the size of the fresnel lens group be larger than the size of the real image 5 to allow the user to see the complete image.

Generally speaking, to form the enlarged real image 5, the distance from the image source 1 to the imaging magnifier 3 is between one time and two times of the focal length of the imaging magnifier 3, the imaging lens in this embodiment is a fresnel lens group, and includes at least two pieces of fresnel lenses arranged in parallel, each piece of fresnel lens includes a substrate 8 and straight teeth 9 arranged in parallel on the substrate 8, and the straight teeth 9 of adjacent fresnel lenses are not parallel. The two fresnel lenses arranged in parallel mean that the substrates 8 of the two fresnel lenses are parallel to each other, and the straight teeth 9 on each substrate 8 are also parallel to each other, that is, the length directions of the straight teeth 9 are all arranged in parallel, as shown in fig. 11; by straight teeth 9 is meant that the two end faces are identical in shape and that each ridge 93 is parallel to each other as shown in figures 8 to 10.

Light is emitted from an image source 1, an enlarged real image 5 is formed in the air after being refracted by the Fresnel lens group, the Fresnel lens group is adopted, the principle that a long-strip reflector or a dihedral angle reflector is adopted for imaging by reflection in the prior art is changed, the enlarged real image 5 is formed in the air by utilizing the refraction principle of the Fresnel lens group, and therefore an image which is much larger than the image source 1 can be obtained under the condition that the image source 1 is smaller, the weight of the whole device can be effectively reduced compared with a traditional air imaging system, and the production cost can be effectively reduced.

The Fresnel lens group in the system adopts the straight teeth 9, and the straight teeth 9 of the adjacent Fresnel lenses are not parallel, so that the aberration can be effectively reduced, a clearer image can be obtained, the distortion can be corrected, and the higher definition of the periphery of the image can be ensured compared with the Fresnel lenses which are stacked in parallel by common annular teeth.

The image source 1 of the above system is a light source 32 which can adopt one of LCD, LED, OLED or LCOS, the image source 1 has mature display technology, is easy to obtain, has easy to control cost, and is suitable for the condition that the image source 1 is not too large.

As shown in fig. 5, the fresnel lens group includes two fresnel lenses, and the two fresnel lenses are preferably arranged in opposite directions, that is, the straight teeth 9 of the two fresnel lenses are opposite to the straight teeth 9, and the two fresnel lenses are preferably adhered to each other, so as to reduce the thickness of the entire fresnel lens group, and obtain better optical performance, or certainly, a certain gap may be provided, and the gap is fixed by using glue with good light transmittance. Certainly, the fresnel lens group may also include more than two fresnel lenses, the number of the fresnel lenses used is determined according to the actual imaging requirement, and two adjacent fresnel lenses may also be arranged in an opposite and back combination manner.

The straight teeth 9 of the adjacent fresnel lenses are preferably perpendicular to each other, may be perpendicular to each other in contact, or may be perpendicular in space, that is, the projections on a plane parallel to the substrate 8 are perpendicular to each other, for example, all the straight teeth 9 on one fresnel lens are arranged in the transverse direction, and all the straight teeth 9 on the other adjacent fresnel lens are arranged in the longitudinal direction, so that the adjustment and control are easy, and the enlarged real image 5 is obtained and the image quality is good. Certainly, an acute angle can also be formed between the straight teeth 9 of the two fresnel lenses, and the acute angle is an included angle formed by the projections of the teeth on the two fresnel lenses on the surface parallel to the fresnel lenses, so that the obtained image can rotate obliquely, and some special scene requirements can be met.

As shown in fig. 11, the size and parameters of each fresnel lens are preferably the same, so that the relevant parameters can be easily adjusted and calculated, but fresnel lenses with different sizes and parameters can be selected to be combined according to actual needs, but the general structure of the fresnel lenses is the same, i.e. each fresnel lens comprises a base plate 8 and straight teeth 9 arranged on the base plate 8, the fresnel lens adopted by the present scheme is different from a common fresnel lens, the conventional fresnel lens is provided with a plurality of concentric circular teeth on the base plate 8, the present scheme adopts the straight teeth 9, and the straight teeth 9 are arranged in parallel, i.e. the teeth are not circular, but are elongated, the top end of the straight teeth 9 far from the base plate 8 is provided with a ridge line 93, and the ridge line 93 is parallel to the straight line of the base plate 8, as shown in fig. 8 to fig. 10, the cross-sectional shape of the straight teeth 9 is preferably triangular or similar triangular, the cross section is a triangle, namely a triangular prism, preferably the cross section is a right triangle, the similar triangle consists of a base 91 and two oblique sides 92 which are connected end to end, the base 91 is attached to or coincided with the substrate 8, the two oblique sides 92 can be both arc-shaped, one oblique side 92 can be arc-shaped, the other oblique side 92 can be a straight line, if the two oblique sides 92 are both arc-shaped, the intersection of the two oblique sides is not smooth transition, the intersection is kept to form a ridge line 93, and better optical performance can be obtained.

The height of the straight teeth 9 on the same substrate 8 follows the requirement of a Fresnel lens, the height gradually decreases from the center to two sides, namely the height of the straight tooth 9 in the middle is the highest, the height of the straight tooth 9 on two sides gradually decreases, the angle between the bevel edge 92 of the straight tooth 9 and the substrate 8 can also be different, and the parameters are correspondingly adjusted according to the actual imaging effect. The base plate 8 can be rectangular or circular, or can be in other shapes, and is determined according to actual layout and display requirements, edges of the straight teeth 9 can be parallel or not parallel to edges of the base plate 8, the base plate 8 and the straight teeth 9 are integrally manufactured, and the base plate 8 and the straight teeth 9 are manufactured by adopting materials such as glass or plastics.

For the whole optical system, in order to achieve reasonable layout and improve space utilization, a first reflecting mirror 2 may be added between the image source 1 and the fresnel lens, a second reflecting mirror 4 may also be added on the light path between the fresnel lens group and the real image 5, and the second reflecting mirror 4 may be a reflective lens.

As shown in fig. 2, the image source 1 is vertically arranged, the fresnel lens group is horizontally arranged, the first reflector 2 and the second reflector 4 are both at an angle of 45 degrees with the horizontal plane, light emitted from the image source 1 is reflected by the first reflector 2 to vertically enter the fresnel lens group, the light is refracted by the fresnel lens group and then irradiates the second reflector 4, the light is reflected by the second reflector 4 to form a real image 5 in the air, and the image suspended in the air is seen by a user, and the size of the real image 5 is larger than that of the image source 1, so that the real image 5 is obtained in an enlarged manner.

As shown in fig. 6 and 7, the two pieces of fresnel lenses may be arranged in the same direction or in a back direction, and the arrangement in the same direction is beneficial to the parallel arrangement of the multiple pieces of fresnel lenses, so that the fresnel lenses can be conveniently installed during manufacturing and arranged in the same direction; the Fresnel lens is arranged in a back mode, namely the base plate 8 and the base plate 8 of the two Fresnel lenses are close to each other, so that the two Fresnel lenses are positioned easily, and the assembly precision can be improved better.

Example two:

as shown in fig. 3 and 4, the difference from the first embodiment is that the image source 1 is changed into a projector 6, such as a DLP projector 6 or a laser MEMS module, because the light emitting characteristic of the image source 1 is changed, a diffusion sheet 7 is added between the projector 6 and a fresnel lens group, the diffusion angle of the image source 1 is increased, and the angle of the real image 5 observed by human eyes is enlarged, generally, the light transmittance of the diffusion sheet 7 is 70% ± 10%, the light transmittance is higher than 80%, an observer can see a bright projection point of the projector 6, and the light transmittance lower than 60% can cause image blurring and insufficient brightness, which affects the use of the user.

Example three:

as shown in fig. 12, 13 and 14, the difference from the first and second embodiments is that the magnifying lens 3 is an array lens assembly including a plurality of lenses 31, and all the lenses 31 are arranged in a matrix.

The array lens group is to be realized into an enlarged real image 5, the principle of a convex lens is generally adopted, the distance between an image source 1 and the array lens group is kept between one time and two times of focal length, a plurality of lenses can be understood as a plurality of independent lens combinations, and each lens can be made into a square shape for better imaging effect, so that seamless splicing between adjacent lenses can be realized. The array arrangement is basically a form in which rows and columns are distributed, and generally the number of rows is equal to or greater than two rows, and the number of columns is equal to or greater than two columns.

As shown in fig. 13 and 14, the lens may be a microlens or a fresnel lens, which is freely selected according to the design cost of the product, or may be a glass convex lens, each lens unit may be directly and integrally manufactured on one substrate 8 during processing, so as to reduce the influence of the gap between the lenses on the imaging quality, the parameters of each lens may be completely the same, and the parameters of the lenses at different positions may be correspondingly adjusted according to the characteristics of the real image.

Example four:

as shown in fig. 15 and 16, the difference from the first and second embodiments is that the imaging magnifier 3 is one of a fresnel lens, a binary diffractive surface lens, a spherical mirror, an aspherical lens, a free-form surface lens or a flat plate microlens. The imaging magnifier 3 may be the single lens or a lens group formed by overlapping the lenses. Compared with the imaging magnifier 3 adopted in the first embodiment and the third embodiment, the lens is simpler in structure, is suitable for occasions with imaging effect requirements which are not too high-grade, and is beneficial to reducing the production cost.

Example five:

as shown in fig. 17 and 18, the difference from the first and second embodiments is that the imaging magnifier 3 is one of a fresnel reflector, a binary diffractive surface reflector, a spherical reflector, an aspherical reflector, or a free-form surface reflector. Compared with the lenses in the first four embodiments, the reflector has the advantages that the image source 1 and the image can be positioned on the same side of the reflector, so that the position relations of various different forms are increased, and the selection is convenient according to different conditions.

Example six:

compared with the first five embodiments, the difference is that the image source 1 has more than one light source 32, and the plurality of light sources 32 are arranged in an array, so that the actual pictures of different light sources 32 can be adjusted according to the actual pictures in the using process, and a better display effect can be obtained. When the plurality of light sources 32 are combined with the arrayed lens assembly in the third embodiment, as shown in fig. 19, for example, in a display group consisting of a plurality of LCD displays, the plurality of light sources 32 may also be arranged in an array, and the number of the light sources 32 may be equal to or different from the number of the lenses.

Example seven:

as shown in fig. 20 to 22, in the interactive advertisement display system, by using the air imaging device for an advertisement display system according to any one of the first to sixth embodiments, the gesture recognition device 10 is disposed near the real image 5, and the gesture recognition device 10 is used to determine which command operation in the current picture is to be executed by the user, and since the image becomes larger, the position occupied by the displayed same content is also larger, so that the gesture recognition device 10 can easily recognize which command pattern the gesture of the user is to touch, and when the user performs the gesture sliding operation, the gesture sliding distance is correspondingly increased, which greatly reduces the precision requirement on the gesture recognition device 10, so that the gesture recognition device 10 can more accurately recognize the operation of the user, and enhances the experience of the user.

In addition, a voice recognition device can be added, and after a user sees the real image 5 formed by the air imaging device for the advertisement display system, the user expresses the operation command to be executed through voice, so that an additional command expression mode is added, and the experience of the user is enhanced.

Generally speaking, the image source 1 and the imaging magnifier 3 should be protected and installed in the housing 11 of the interactive advertisement display system, the front of the housing 11 may be opened, the opening is provided with transparent glass or other light-transmitting elements for blocking, so that the light passing through the imaging magnifier can be transmitted out of the housing 11 near the real image 5 to form the real image, and the gesture recognition device 10 is generally installed in the housing 11 near the real image 5 or fixed on other objects near the real image 5 in a wired or wireless manner for recognizing the hand operation instruction of the user. Besides the above-mentioned components, the shell also has conventional components of conventional data processor, memory and external communication interface, if it is portable advertisement display system, it also can be equipped with internal rechargeable battery to conveniently supply power.

Moreover, in order to further save space, the advantage of small volume of the air imaging device for the advertisement display system in the invention is fully utilized, a plurality of air imaging devices for the advertisement display system facing different directions can be arranged in the shell of the same interactive advertisement display system, so as to greatly save the space occupied by the interactive advertisement display system, for example, the shell is arranged in a regular quadrangular mode, and a group of air imaging devices for the advertisement display system is correspondingly arranged on four different side surfaces respectively, so that the air imaging device can provide service for four users simultaneously.

The first scheme of the gesture recognition device adopts an infrared camera, light emitted from an image source passes through an imaging magnifying lens and is refocused into a real image in the air, the sensing gesture range of the infrared camera is overlapped with the real image through debugging of distance and direction, then the gesture is recognized through the infrared camera, and then the image of the image source is controlled to perform corresponding actions through an MCU (microprogrammed control unit), such as amplification, reduction, left-right up-down rotation, selection, return and the like.

In the embodiment of the invention, the infrared camera can adopt a leaf motion gesture recognition camera in the prior art. Of course, the infrared camera can select any other type of gesture recognition camera, recognize the gesture of the operator, and send the type to the central processing unit.

The Leap Motion is a physical controller issued by Leap, 2013, 2 and 27 days by physical controller manufacturing company Leap facing PCs and macs, and the Leap Motion controller does not replace a keyboard, a mouse, a stylus pen or a touch pad, but instead works in cooperation with them. When the Leap Motion software is running, it is simply plugged into the Mac or PC, all that is ready. The operation can be completed by waving one finger without changing or editing the program.

The second scheme of the gesture recognition device adopts a 3D capacitive gesture recognition module, light emitted from an image source is refocused into a real image in the air after passing through an imaging magnifying lens, the sensing gesture range of the 3D capacitive gesture recognition module is overlapped with the real image after debugging of distance and direction, then the gesture is recognized through the 3D capacitive gesture recognition module, and then the image of the image source is controlled through an MCU to perform corresponding actions, such as amplification, reduction, left-right up-down rotation, selection, return and the like.

In the embodiment of the invention, the 3D capacitive gesture recognition module adopts a mcg3130 chip of microchip company. The MCU is a system controller, and can also be a computer with a high-definition video output interface and a usb port in the prior art.

The mcg3130 chip is a gesture recognition chip designed by microchip company specially for the industrial field. The detection distance is about 30cm, and the system requirements can be completely met under the appropriate design.

The third scheme of the gesture recognition device is that a millimeter wave radar gesture recognition module is adopted, light emitted from an image source is refocused into a real image in the air after passing through an imaging magnifying lens, the sensing gesture range and the real image of the millimeter wave radar gesture recognition module are overlapped through debugging of distance and direction, then the gesture is recognized through the millimeter wave radar gesture recognition module, and then the image of the image source is controlled through an MCU to perform corresponding actions, such as amplification, reduction, left-right up-down rotation, selection, return and the like.

In the embodiment of the invention, the millimeter wave radar gesture recognition module adopts awr1642 chips of TI company. The MCU is a system controller, and can also be a computer with a high-definition video output interface and a usb port in the prior art.

The awr1642 chip is a gesture recognition chip designed specifically for the industry by Ti corporation. The chip is not easily affected by ambient light, severe weather and the like, and can be used in all weather.

The above description is only an embodiment of the present invention, but the technical features of the present invention are not limited thereto, and any changes or modifications within the technical field of the present invention by those skilled in the art are covered by the claims of the present invention.

Claims (23)

1. Air image device for advertisement display system installs in advertisement display system, its characterized in that: the method comprises the following steps:

an image source for generating a display picture;

and the imaging magnifier magnifies the picture generated by the image source and realizes real image in the air.

2. An air imaging apparatus for an advertisement display system according to claim 1, wherein: the imaging magnifier is one of a Fresnel lens, a binary diffractive surface lens, a spherical mirror, an aspheric lens, a free-form surface lens or a flat micro lens.

3. An air imaging apparatus for an advertisement display system according to claim 1, wherein: the formation of image magnifying glass is fresnel lens group, including two piece at least parallel arrangement's fresnel lens, every fresnel lens all includes base plate and parallel arrangement at the straight-tooth on the base plate, and adjacent fresnel lens's straight-tooth is all not parallel.

4. An air imaging apparatus for an advertisement display system according to claim 3, wherein: the straight teeth of the adjacent Fresnel lenses are perpendicular to each other.

5. An air imaging apparatus for an advertisement display system according to claim 3, wherein: the top end of the straight tooth far away from the substrate is provided with a ridge line, and the ridge line is parallel to the straight line of the substrate.

6. An air imaging apparatus for an advertisement display system according to claim 5, wherein: the straight teeth are triangular prisms, and one side surface of each straight tooth is tightly attached to the substrate.

7. An air imaging apparatus for an advertisement display system according to claim 5, wherein: the cross section of straight tooth includes end to end's base and two hypotenuses in proper order, the base hugs closely on the base plate, one the hypotenuse is the pitch arc, another the hypotenuse is pitch arc or straight line.

8. An air imaging apparatus for an advertisement display system according to claim 3, wherein: two adjacent Fresnel lenses are arranged oppositely; or two adjacent Fresnel lenses are arranged in the same direction; alternatively, the first and second electrodes may be,

two adjacent Fresnel lenses are arranged in a back-to-back manner.

9. An air imaging apparatus for an advertisement display system according to claim 3, wherein: the two Fresnel lenses are tightly attached together; or a gap is reserved between the two Fresnel lenses.

10. An air imaging apparatus for an advertisement display system according to claim 1, wherein: the imaging magnifier is an array lens group, the array lens group comprises a plurality of lenses, and all the lenses are arranged in a matrix mode.

11. An air imaging apparatus for an advertisement display system according to claim 10, wherein: the lens is a micro lens or a Fresnel lens.

12. An air imaging apparatus for an advertisement display system according to claim 1, wherein: the imaging magnifier is one of a Fresnel reflector, a binary diffraction surface reflector, a spherical reflector, an aspheric reflector or a free-form surface reflector.

13. An air imaging apparatus for an advertisement display system according to any one of claims 1 to 12, characterized in that: a first reflector is further arranged on a light path between the image source and the imaging magnifier; and/or a second reflecting mirror is arranged on a light path between the imaging magnifier and the real image.

14. An air imaging apparatus for an advertisement display system according to any one of claims 1 to 12, characterized in that: the image source is one or more light emitting sources.

15. An air imaging apparatus for an advertisement display system according to claim 14, wherein: when the image source is a plurality of luminous sources, the luminous sources are arranged in a matrix form.

16. An air imaging apparatus for an advertisement display system according to claim 14, wherein: the light emitting source is one of an LCD, an LED, an OLED, an LCOS or a projector.

17. An air imaging apparatus for an advertisement display system according to claim 16, wherein: the projector is a DLP projector or a laser MEMS module, and a diffusion sheet is further arranged between the projector and the imaging magnifier.

18. An air imaging apparatus for an advertisement display system according to claim 17, wherein: the light transmittance of the diffusion sheet is 70% +/-10%.

19. An air imaging apparatus for an advertisement display system according to any one of claims 1 to 12, characterized in that: the size of the imaging magnifier is larger than that of the real image.

20. An interactive advertising display system, comprising: an air imaging device for an advertisement display system according to any one of claims 1 to 19, wherein a gesture recognition device is further provided in the vicinity of the real image.

21. The interactive advertising display system of claim 20, wherein: the advertisement display system further comprises a voice recognition device which collects the voice of the user and combines the real image display content.

22. The interactive advertising display system of claim 20, wherein: the image source and the imaging magnifier are installed in a shell of the advertisement display system, a transparent window for emitting light passing through the imaging magnifier is formed in the shell, and the gesture recognition device is arranged in the shell near the real image.

23. The interactive advertising display system of claim 20, wherein: a plurality of air imaging devices for the advertisement display system are arranged in the advertisement display system.

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