RU2375762C1 - Device for non-linear image projection - Google Patents

Abstract

FIELD: physics; image processing.

SUBSTANCE: invention relates to apparatus for displaying visually luminescent information, mainly of advertisement nature. The device rotates and has at least one screen. The screen can project an image in a given direction. The screen consists of at least one substrate which carries the image and at least one projector. The projector can direct its beams onto the substrate. In one version of the device, there are several vertical opaque elements on each screen. The elements occupy the entire height of the working surface of the screen. Elements lie at a distance from each other greater than their thickness and length greater than the distance between them. In another version of the device, there are focusing cones on each screen, with their larger faces touching.

EFFECT: obtaining an image lying frontally in front of the viewer, independent of location or displacement of the image.

17 cl, 15 dwg

Description

The invention relates to the field of means for displaying visual luminous information, mainly of an advertising nature, designed to draw attention to the displayed image.

As a means of displaying visual information are widely used:

- neon sign installed statically or rotating, as well as changing the mode of operation of the luminous elements or the entire device,

- electronic screens, as well as various monitors, allowing to show the image embedded in them or the image transmitted to them,

- digital projectors that illuminate the image on the plane with which it is perceived by the viewer.

These systems make it possible to fully perceive the image displayed by them when they are positioned towards the viewer in the frontal or close frontal position and within a certain range within the permissible deviation of the viewing angle at which the image can remain acceptable perceived.

An advertising pillar is known in the art containing a transparent advertising-carrying cylinder that is illuminated by an internally mounted light source and mounted on a rotation installation (WO 9428536, 08/08/1994).

Known multimedia advertising stand, inside a rotating column of which there is a lighting device. The column consists of four segments containing a transparent shell, inside which are advertising posters (DE 202004019069, 05.25.2005).

Closest to the proposed invention is a rotating advertising pillar. The pillar is made in the form of a rotating cylinder and contains a matrix for posting advertising posters. The matrix may consist of a transparent material, while the image is applied from the inside and also illuminated from the inside (DE 20313046, 12/18/2003).

The disadvantage of these devices is that the viewer is provided with constantly changing dynamic information with a changing viewing angle and he is deprived of the possibility of comfortable perception of a single image.

The problem to which the proposed invention is directed is to create a device for projecting images of individual perception, which would eliminate the above disadvantages in that it would provide each viewer with an always frontal image, regardless of its location or movement, which remains always easily perceived within both static and dynamic image.

The technical result achieved by the implementation of this invention is to expand the functional and operational capabilities, consisting in the convenience of perceiving information, reflected in a longer time to maintain an acceptable level of perception of the image when the viewer moves past the device, there is no need to reduce the speed in order to maintain the desired angle for free reading of information, or, if the viewer is in place, there is no need to wait for a turn the device to the desired angle or the need for its own movement to the desired position, as well as increasing the attention to the object, visually remaining invariably frontally directed at the viewer and creating the effect of personal work with it, built on the optical effect of the front image of the object regardless of the location or movement of the viewer, even in which case the image will not be shifted in the middle of the visible part of the device, due to the possibility of highlighting the visual and formation on the device using all 360 ° in a horizontal plane for projecting images.

The specified technical result in the device for non-linear projection of the image, which is a rotating means for providing visual information, is achieved by the fact that it contains at least one screen configured to project the image in a given direction and containing at least one carrier image a substrate and at least one searchlight configured to direct its rays onto the substrate, with a plurality of vertical transparently elements extending over the entire working area of the screen height, at a distance from one another greater thickness of the elements themselves, and a length greater than the distance between, or the contiguous faces of large Fauconnier with each other, the side walls are covered with reflecting material.

Screens are connected around the perimeter in a closed ring.

The screen is located in a vertical or diagonal plane.

The screen has a convex or concave shape horizontally or vertically.

Elements are made of light-absorbing material.

Elements are coated with light-absorbing material.

Elements are plates.

Elements are located at an angle to the screen.

Elements or focons are located parallel to each other or with some discrepancy or narrowing, having a common point or points of convergence of the axes in space inside or outside the device.

The means for presenting visual information further comprises a protective layer in the form of a transparent body located in front of the plates or foci.

The screen contains slots for mounting the substrate in them.

The substrate is made of light-transmitting material on which the same images are applied, each of which occupies a single screen, with the possibility of projecting the image onto the viewer through plates or focons.

The substrate is a matrix.

The matrix is made of different images, consisting of sequences of cycles and located on a separate screen, with the possibility of obtaining animation.

The matrix is a web of multiple pixel cells, each of which is configured to form an image element.

A pixel cell includes a set of color light transmitting or light refracting elements.

The invention is illustrated by drawings, where figure 1 shows a side view of a rotating cylinder; figure 2 is a top view in section of a rotating cylinder; figure 3 is a top view of the passage of the light beam; figure 4 is a side view of the passage of the light beam; 5 is an embodiment of an external filter layer; 6, 7 - embodiments of a rotating cylinder, top view; Fig.8-12 - embodiments of the forms of screens of the claimed device horizontally and vertically; Fig.13-15 - options for the location of the elements of the outer filter layer.

The invention is a device (FIGS. 1-15) that displays various images by perceived viewers with some difference depending on the location of the latter relative to the object.

A non-linear image projection device, which is a rotating means for providing visual information 1 (Figs. 1, 2), receives rotation from the drive and rotates at high speed around the axis of symmetry 2 and uses all 360 ° of its circumference to display an image located on its surface always frontally to the viewer, regardless of his location or movement, even in which case the image will be inextricably located in the middle of the visible part of the cylinder.

The rotating means for providing visual information 1 (Figs. 3, 4) comprises at least one screen 3 (one, two, three or more). The screen 3 is configured to project the image in a given direction and contains at least one image-bearing substrate 4 and at least one searchlight 5. The searchlight 5 is configured to concentrate its rays on the substrate 4.

On each screen 3 there are many vertical opaque elements 6, extending along the entire height of the working area of the screen 3, at a distance from each other greater than the thickness of the elements 3 themselves and a length exceeding the distance between them.

Or on each screen 3 can be located many in contact with large ends of each other vertical foci (figure 5), the side walls of which are covered with reflective material.

The screens 3 are connected around the perimeter in a closed ring (figure 2), with each screen 3 can be located in a vertical (figure 1) or diagonal plane (figure 10). In addition, each screen 3 can have a convex (Fig. 8, 9) or concave (Fig. 9, 12) horizontal or vertical shape.

Vertical opaque elements 6 are made entirely of light-absorbing material or coated with light-absorbing material, and can also be a plate and be located at an angle to the screen 3.

The means for presenting visual information 1 may further comprise a protective layer in the form of a transparent body 8 (Fig.6-9), located in front of the plates or foci, in order to protect these plates or foci from damage.

The substrate 4 is mounted in the slots 7 of the screen 3 and can be interchangeable. The substrate 4 is made of light-transmitting material on which the same images are applied, each of which occupies a single screen, with the possibility of projecting the image onto the viewer through plates or focons. The substrate 4 may be a matrix, which is made of different images, consisting of sequences of cycles and located on a separate screen 3, with the possibility of obtaining animation.

Also, the matrix may be a web of multiple pixel cells, each of which is configured to form an image element. A pixel cell includes a set of color light transmitting or light refracting elements.

The principle of the device’s operation is based on the use of narrowly directed light rays emanating strictly in a certain direction from the device (for example, frontally), by means of which an image is displayed, which becomes available in this case for perception only if the screen is almost completely perpendicular to the viewer. When the device rotates, the projection range of the image is 360 °, as a result of which the viewer at the time of the direction of the rays at him will be able to perceive the same image regardless of its location or movement relative to the device; an increase in the rotation speed of the device, in turn, reduces the pause between the image falling into the perception area, as a result of which the phase change of the appearing / disappearing image can be reduced to flicker that is minimally noticeable to the eye (hereinafter: frame scan) that is constantly perceived from any point in the image. The decrease in the total luminosity moment at each point in the surrounding space, which inevitably arises as a result of the downtime in the illumination of each direction during the rotation of the emitting screen, is compensated by the increase in the power of light lamps - spotlights used in the device to emit light in the desired direction. The brightness of light rays, in turn, is smoothed out by the extremely short duration of light entering the eye area, and when the device rotates faster, the cycle of appearance and disappearance of light rays becomes minimally perceptible, ultimately striving for the effect of a constant balanced glow. A feature of the device is the fact that when moving away from the device, the total luminosity moment of the device decreases, which is caused by a decrease in the time the light emitter is in the desired angle when the radius of removal increases when the device rotates at the same speed, and when approaching the device, not all rays are extremely close in the field of view, from which it follows that for each device a certain range is assumed, having its own tolerance of near and far distances, within which the image can stabilize no perceived.

The simplest example of a system is the use of a cylinder consisting of 3 parts, arranged in layers from the center to the edge, and broken into several (minimum 2) screens, depending on the need for the percentage use of the area of the device’s side visible to the viewer. The first part of the device is a layer located on the surface - an external filter layer (tracer), consisting of a set of extremely thin plates extending vertically to the entire height of the luminous part of the cylinder, made of light-absorbing material or with light-absorbing material deposited on the walls, located parallel to each other within one screen, in a general direction perpendicular to the center of the cylinder, at a distance from each other is much less than the thickness of the layer itself. The second part is an intermediate layer - a nest, in which a matrix is placed, made according to the principle of a slide of light-transmitting material with an image printed on it, installed in each cylinder screen in the amount of one copy, which is completely identical to that installed in the others, projected onto the viewer. The third part is the inner layer, which is a searchlight or a combination of searchlights, each of which concentrates its rays within the framework of its screen on the matrix, making the image applied to it shine on the viewer. The cylinder rotates around its own axis at a speed at which the frame scan of the displayed image merges into the effect of constant illumination that is practically not perceptible to the eye, while the plates, in turn, making the image visible exclusively at the moment when the latter is frontally in front of the viewer, do not allow to merge him into a motion blurring motion.

The system also suggests various improvements to expand its functionality.

The first opportunity to expand the functionality of the system is that, with some loss in the useful area of the displayed image, the cylinder is divided into a larger number of segments, which makes it possible to use a set of matrices with slightly different images according to the principle of successive frames within a short cycle, determined by one rotation circle of the device, which with a certain decrease in the rotation speed to the perceived time interval will create the effect of otkoy looped animation. This solution can be used to create an image of a rapidly rotating object or moving back and forth according to the shuttle principle, as well as the effect of trembling (for example, trembling of flames).

The second option for expanding the use of the system may consist in the use of screens having a direction of the external filter layer — a tracer other than perpendicular to the screen, or screens with separate blocks having different directions of tracing plates within a single screen, which makes it possible to manipulate display areas perceived by the viewer , and the time of its appearance in a certain area. For example, at a slower speed of rotation of the device, such a solution can be used to create the effect of flashes of light in various places and applied in public entertainment places. Also, such a solution can be used to save visual resources if it is not necessary to use the entire screen area for displaying the image (for example, when the image assumes the presence of figures located only in certain parts of the screen, the unused area can be reserved for simultaneously projecting image elements in a different perspective ) It may also be advisable to include in the system a special mechanism that controls the position of the light guide elements.

A more complex expansion of the system’s capabilities is the use of a controlled matrix made on the principle of a digital projector, which makes it possible to generate an image, for example, representing a canvas of controlled cells — pixels, inside of which image elements are separately formed. Each screen forms a separate image, creating a frame that successively replaces the previous one after passing through a cycle from a partial, full or several revolutions of the device, within which a full-fledged animated image is obtained. A pixel can be a diaphragm that controls the amount of light it transmits, and also include a set of color light-transmitting elements, the degree of extension of each of which will form the color of the pixel. To emit light, a common searchlight or a set of individual searchlights that transmit light through each pixel or group of pixels can be used. Floodlight lamps can also be used, changing the level of illumination depending on the current supplied to them, shining each of its nests through light-transmitting filters differently colored in primary colors, used in the amount of three lamps per pixel as the primary colors of the RGB model. It is also possible to use special light-refracting prisms, which, by the degree of rotation to the light rays passing through them, will create one or another color of the beam at the exit due to its color separation ability.

The shapes of the device may also be different. The first aspect of the variety of solutions can be the vertical profile of the screen (s), assuming the overall shape of the device depending on it. Depending on the specific purpose of the system, which requires projecting the image onto a plane that is at the same level with the device or at a higher or lower level, as well as the required range of the angle of deviation of the view from the plane of rotation of the device, at which the image should remain perceptible, the device may have a cylindrical , conical, barrel-shaped or inverted barrel-shaped, as well as any other shape of the body of revolution formed by the above elements. Also, the shape of the screen can vary horizontally using a flat, convex or concave profile, as well as a broken line or a curve using the above elements.

Also, within technological options, in the external filtering layer, elements can be used that have a shape different from the plates, which implies improved light absorption and reduced horizontal scattering of the output rays, for example, light-guiding elements can have a cross section in shape, gradually increasing the thickness of the element closer to the end of the layer. The magnification can be linear or non-linear, and it can also be varied using a wavy or serrated profile in order to improve the processing of the light beam. Also, the outer filter layer can be made of a combination of transparent and opaque material, in which the spaces intended for the passage of light rays, for example, the thickness of the cross section of the light guide elements, can vary linearly or nonlinearly throughout the layer.

Also, alternatively to this solution, the function of light-guiding elements can be performed by foci that refract and focus the light rays passing through them in the required manner. This solution makes it possible to increase the total moment of luminosity due to the absence of the process of light absorption in the system.

Also, in each of the two cases, the arrangement of the light guide elements can be parallel to each other within the same screen, and also go with some discrepancy or convergence, depending on the task and the desired image effect. The convergence of the light guide elements makes it possible to focus the image at a certain distance, which can be useful if spectators are supposed to be at a certain distance at the place of use of a particular device; the discrepancy will make it possible not to simultaneously perceive the entire frame in a short period of time, but in parts, which can be used to smooth out the flicker effect (frame scan).

In addition, the device for non-linear projection of the image may contain at least one equipped with a light guide layer that limits the viewing angle, projecting the image screen and rotate at a speed that reduces to a minimally noticeable time interval between revolutions. The light-guiding layer contains focons whose side walls are coated with a reflective material, or the light-reflecting layer contains many opaque elements located vertically throughout the working area of the screen, having a thickness less than the distance between the elements themselves and the distance from each other is less than the length of the elements themselves.

And also the device rotates at a speed that reduces to a minimally noticeable time interval between revolutions. And it may contain at least one image projecting screen equipped with a light guide layer limiting the viewing angle of the image, including many opaque elements located vertically throughout the working area of the screen, having a thickness less than the distance between the elements themselves and the distance from each other less than the length elements.

All this allows you to expand the functional and operational capabilities of the device, to increase the information content, as well as to obtain the optical effect of the frontal image of the object regardless of the location or movement of the viewer, even in which case the image will be inextricably located in the middle of the visible part of the cylinder, due to the possibility of highlighting visual information on the device using all 360 ° in the horizontal plane to project the image.

Since in the framework of this system, in most cases, a sufficiently significant rotation speed of the device is required and the aerodynamic drag aspect needs to be taken into account, it is assumed that a transparent streamlined casing having the shape of a rotation body, also performing a protective function, is connected to the system and rotates with it or remains with it independent of its rotation within itself.

Claims (17)

1. The device is a nonlinear projection of the image, which is a rotating means for providing visual information, characterized in that it contains at least one screen configured to project the image in a given direction and containing at least one image-bearing substrate, and at least one searchlight configured to direct its rays onto the substrate, with a plurality of opaque elements vertically arranged on each screen occupying th height of the working area of the screen, at a distance from each other greater than the thickness of the elements themselves, and a length greater than the distance between, or the contiguous faces of large Fauconnier with each other, the side walls are covered with reflecting material. 2. The device according to claim 1, characterized in that the screens are connected around the perimeter in a closed ring. 3. The device according to claim 1, characterized in that the screen is located in a vertical or diagonal plane. 4. The device according to claim 3, characterized in that the screen has a convex or concave shape horizontally or vertically. 5. The device according to any one of claims 1 to 4, characterized in that the elements are made of light-absorbing material. 6. The device according to any one of claims 1 to 4, characterized in that the elements are coated with a light-absorbing material. 7. The device according to claim 6, characterized in that the elements are plates. 8. The device according to claim 7, characterized in that the elements are located at an angle to the screen. 9. The device according to claim 7 or 8, characterized in that all elements or foci that are within the scope of their screen are parallel to each other. 10. The device according to claim 7 or 8, characterized in that all the elements or foci located within its screen are not parallel to each other, but with a divergence or convergence of the axes having at least one common point of convergence of the axes in space outside the device either inside the device. 11. The device according to claim 1, characterized in that the means for presenting visual information further comprises a protective layer in the form of a transparent body, located in front of the plates or foci. 12. The device according to claim 11, characterized in that the screen contains slots for mounting the substrate in them. 13. The device according to p. 12, characterized in that the substrate is made of light-transmitting material on which the same images are applied, each of which occupies a single screen, with the ability to project the image onto the viewer through plates or focons. 14. The device according to p. 12, characterized in that the substrate is a matrix. 15. The device according to 14, characterized in that the matrix is made of different images, consisting of sequences of cycles and located on a separate screen, with the possibility of obtaining animation. 16. The device according to 14, characterized in that the matrix is a web of a plurality of pixel cells, each of which is configured to form an image element. 17. The device according to clause 16, wherein the pixel cell includes a set of color light transmitting or light refracting elements.

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