HU182793B - Method and apparatus for recording and displaying stationary or moving laser interference patterns or interference pattern series in predetermined sequence - Google Patents

Abstract

Process and equipment relate to recording and displaying stationary or moving laser interference and so-called preholographic, respectively, images or image sequences in a predetermined order of sequence. The essence of the process lies in that the images or image sequences to be displayed are produced by the proper formation of the single surficial parts of the plate and the sequential illumination of said parts by the laser light. In case of moving images or image sequences either the plate or the bundle of laser is suitably moved... The essence of the equipment lies in, that the equipment is provided with a laser source, an intercepting screen and between the laser source and the intercepting screen there is a plate arranged. By means of optical elements (e. g. lenses and lens systems) arranged between the plate and the screen and the laser source, respectively, the interference images can be further intercepted.

Description

The present invention relates to a method and apparatus for recording still or moving laser interference images or sequences of images in a predetermined order.

As is well known, for mankind, light has always played an important role in obtaining information, and we have often found various effects of light in the means of artistic expression. It is not surprising, therefore, that new light sources, lasers, and one of the important scientific achievements of our time have been incorporated into these devices.

In fact, lasers mean nothing more than light sources, but they have special properties that are different from other light sources.

There is a growing interest in these special light sources, both among professionals and lay people. The reason for this lies in abnormal properties that are many times superior to traditional ones. The most important properties of laser light are its high degree of directionality, the monochromatic beam and the resulting high degree of coherence, and the high power of light that can be concentrated in this narrow, directed monochromatic beam. The numerical values that characterize these three main properties of lasers can vary within wide limits, depending on the type of laser, providing a wide range of applications.

In particular, the monochromatic, or monochromatic, beam of light and the associated high degree of coherence or, in other words, interference, are properties that, beyond a wide range of technical and scientific applications, can produce effects that are close to many expressive tools of contemporary art. .

Lasers as a fingertip light source have spread in various fields of science and technology within a very short period of time.

This process is still perceptible. At the same time, the potential of using laser light effects in visual culture has been formulated to meet the ever-widening mass demand.

In recent years, the use of laser-generated visual experiences has been used worldwide, primarily in the entertainment industry and in some shows. A common feature of these is that the unopened light beams of lasers have different optical elements on projectors / eg. planetarium dome, auditoriums, etc. /. The spectacle is achieved by the light beams of various Sino lasers, the dynamics, size and number of movement of the light points. The resulting light phenomenon is a one-off, non-repeatable improvised operation.

A method is known in which a laser interference image is used for holography to control photomassages. When an object is illuminated, the light scattered / diffracted / carries information about that object. This information is carried by the amplitude and phase of the light wave, i.e. the complex amplitude of the light wave. Therefore, in order to record the complete information about the illuminated object, we must also record the phase. Since only the given light intensity can be detected, for example in conventional photography, the information carried by the phase makes sense.

This problem is solved by holography. The wave from the object is interfered with by another so-called reference wave _A and the resulting interference image is recorded / photographed. Because the phase of the two waves in the formation of the interference image

-2182.793 plays a role, thus indirectly recording the phase. What follows is another great benefit of holography. Because light reaches all points of the fixation material from every point of the object, a small part of the fixation material may already contain information about the object as a whole.

It is an object of the present invention to provide an apparatus capable of producing and reproducing laser interference images that provide a lasting artistic experience to viewers. Equipment-generated stationary or moving laser interference images can be magnified to any size, and images or sequences of colors can be directly or indirectly displayed using one or more laser sources.

The object of the present invention may be addressed by composing, recording and directly or indirectly displaying, respectively, stationary or moving laser interference images or sequences of images.

The present invention is based on the discovery that optical shapes carrying image information can be recorded and then read directly or indirectly by means of a laser beam, as in the case of an audio disc, and of course the image disk and / or the laser in moving images. beam must be moved.

The invention will now be described in more detail with reference to the drawing, in which some exemplary embodiments of the apparatus according to the invention are shown. In the drawing it is

Figure 1 is an exemplary embodiment of the apparatus of the invention; the

2-3. Figures 3 to 5 illustrate further exemplary embodiments of the apparatus of the invention; the

Figure 4 is an exemplary embodiment of a cylindrical plate according to the invention with a rotated mirror; the

5-7. FIG. 3B is a view showing some exemplary embodiments of a disk form according to the invention; the

Fig. 8 is an exemplary embodiment of a rectangular plate according to the invention; the

Figure 9 shows the apparatus according to the invention arranged in a projection room; the

10-12. Figures 3 to 5 illustrate further embodiments of the apparatus.

As shown in FIG. it has a laser light source, 2 image discs, 3 motors, 4 latches, and 9 projectors. When the light latch 4 is opened, the light beam passes through the image plate 2 to the projection screen 9 and there, an enlarged image of the pixel on the image plate 2 can be displayed. The motor 3 slowly rotates the image plate fixed to its axis at a constant low speed. The image plate 2 is in the form of a disk, in which the pixels are e.g. they are placed side by side along concentric circles. The laser light is an interference pattern as it passes through a non-glare translucent material, i.e., the image plate 2, in which light and dark stripes of the same color as the laser light alternate in a linear fashion. The resulting figure, which is projected onto the projector 9, is actually a special photograph of a portion of the surface illuminated by the laser beam, from which the shape of the surface can be reconstructed by calculations using Fourier analysis.

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Figure 3 · a. Another embodiment of the apparatus according to the invention is illustrated in which the light beam 1 of the laser light source 1 is applied to the projection screen 9 using additional optical elements and guided through a cylindrical plate 8. The intermediate optical elements have a prism 5, a mirror 6 and a rotating mirror 7, which are mounted on the motor shaft 3. In this embodiment, the image plate 8 is preferably cylindrical and has a surface such that, as the laser light beam traverses the cylinder envelope, it displays a series of appropriate pre-designed and tested interference images. These projected interference sequences completely surround the walls of the auditorium.

Fig. 4 shows a cylindrical form plate 8, a mirror 6 and a rotating mirror 7 mounted on the axis of the motor 3 and the projected laser interference image is displayed on the projector 9. The most important properties of laser light are the high orientation, the monochromaticity and the resulting high degree of coherence. High power can be concentrated in this narrow directional mono chromatic beam. The numerical values that characterize these three main properties of lasers can vary within wide limits, depending on the type of laser, which makes it possible to apply the present invention in a very wide range. An image plate can be simultaneously illuminated by a plurality of laser light sources on a suitable optical element by means of mirrors or prisms. In this way, the continuous coherent monochromatic light of the lasers can be transformed into a laser interference image process which is spectacular and unusual for the observer. The motor 3 used can also be programmed for variable speed.

5-8. Figures 3 to 5 illustrate some exemplary embodiments of the formula sheet according to the invention. The relationship between the projected interference image and the elevation of the image plate is defined explicitly by the Fourier transform. The laser beam produces a special photograph of the illuminated material ', hiding its structure observable by our usual way of seeing. Coincidence also contributed to its discovery, but the image on the screen is not exposed to chance. The rich network of interferences extends from nuclear explosions to the construction of hypnotic space rhythms intertwined with exact precision. This is the struggle of the closing surface of the material with the filament light, and the filament is transformed. Something will be quite different, but still something that can only be created with a laser. And all of this is selectable, repeatable, and can be organized into a visual fabric.

This monochrome monochromatic and at the same time coherent ray, the fast-moving tool of modern science and modern industry, is undoubtedly special today. The coherent light of the photons emitted from the excited atoms, focused on a narrow beam, becomes a means of visual organization.

As a result of visual analysis work, the basic surface forms of each pixel and the associated characteristic laser interference images can be determined. It is necessary to know what kind of surface-shaped optical media is associated with high-spectral laser interference images. In other words, these high-interference images' and certain surface elements of the optical medium associated with it must be cataloged.

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Cataloging can be done with slide recordings, slides, or photonegatives, or with photocopies of them. Color slides produced in this way provide the opportunity to project interference images without laser light in the form of a simple slide projection or slideshow using two or more projectors. These slides create a sense of motion by changing the time of transitions and by adjusting the light intensity appropriately.

Based on this cataloging, image processes of different characters can be designed, which are 4-8. As illustrated in FIG. Each of the sectors A-D can be made of different transparent or reflective materials, such as glass, plexiglass, plastic, crystals, and these sectors can then be bonded to one another, for example. The dial can then be multiplied by simple means. Thus, according to what has been said, a completely new genre to the analogy of the record is the image of the record and the related interference that stores a great many pixels. They can be displayed again and again at any time.

The surface portions of each sector can be formed by etching, grinding, casting, or any other process that can be used to surface the surface of each sector.

The aesthetic interference patterns stored on the image disc can be displayed on the projector 9 by means of laser light. The sharpness of the projected image is independent of the distance between the 9 screens and the image disc. In the case of scanning, either the image plate or the laser light beam is moved at a predetermined and variable speed, it is generally simpler to move the light beam and the image plate at the desired speed. In the case of a disc shaped disc, the movement can be performed at a low speed e.g. synchronous minutes or juices; In other cases, a variable speed motor is used which moves the image plate through a gear ratio. In both cases, the light beam illuminates the image plate along a circular path. The image plate can also be screened along a spiral path when double movement is required. A rotating motion and a linear, possibly vibrating motion. For example, linear motion can be accomplished by means of a gear and rack mounted on a motor shaft.

The visualization can be enhanced by employing a number of laser colors, preferably of different colors, which illuminate the same or synchronized image discs. Synchronization of the image plates is necessary to achieve a pre-designed visual experience, ie, the image plates must be started from the same angular position and rotated at the desired angular velocity. This allows the image process obtained from the various image disks on the screen to be harmonized and possibly coordinated to a specific program.

When designing a visual experience, the interference image line should be structured according to a timeline, which provides an opportunity to enhance the image in harmony with another aesthetic experience. Music, Literature and Motion Art, etc. Synchronization, the nature and change of interference images, their position in space, the rhythm of motion, their freezing to a still image, and their alignment with music must be planned for the Time Chart.

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The projection screen 9 for capturing the interference image is preferably a white wall of the showroom or other reflected light intensifying material such as pearl screen. With a translucent screen, you can enjoy the view on both sides of the screen. Because the interference image is sharp, regardless of the distance of the image plate, the geometry of the screen can be shaped as imagined.

For example, the individual interference patterns recorded on a slide can be combined with each other, and the resulting image can be combined with each other, and the resulting image can be enriched in a series of frozen interference images, preferably by film and high-frequency scanning pulsed laser. This film can later be projected without the use of a laser. The film recorded in this way, when combined with other types of experience material, can be used to deepen these experiences. Eg science and fiction movies.

Fig. 9 illustrates an apparatus according to the invention arranged in a lecture room. The illustration shows two visual laser sources, the number and color of which are determined by the image to be projected. Laser sources can be continuous lasers, but we can also use high repetition rate pulsed lasers to display images or sequences of images. The power of the lasers can range from a few mW to 5-10 W depending on the size of the room, assuming a darkened room. However, Ιΐγβη high-performance lasers are capable of displaying large-scale outdoor images from long distances. In a room of the size shown, lasers with a power of 10-100 mW can achieve the desired effect. Larger halls require more power to achieve the right effect. The light can be deflected by the overloads placed in the path of the unopened beam.

The method and apparatus of the present invention are versatile for static and structured, time-varying display of interference images of different frequencies, i.e., different blood laser beams. These interference images will greatly contribute to the development of visual culture in the future. Can be used for fine arts, applied arts, advertising, graphics, stage pictures, film, etc. field and stage performances as a backdrop to enhance the aesthetic experience.

The spectacle can be repeated periodically by stopping, slowing down, accelerating the image rotation properly, and the movement of the image sequence can be influenced as desired. Unidirectional motion, such as vibratory motion, provides additional variation possibilities.

A further advantage of the solution is that the resultant image can be resized to any degree by zooming in or out of the laser source while maintaining the sharpness of the image.

The visuals created from each image or image process can be used to create standalone programs with music underlay and composition.

The nature of these programs can be the artistic, advertising, educational, literary, atmospheric, ballet and pantomime animation, the appropriate selection of moving figures on the figures and the environment, and the determination of the rhythm of movement-6182,793.

Direct imaging of the surface of an image disk using lenses increases the richness of the visuals and enhances variation. The size of the pixel can be varied with the light beam extender 11 placed before the image plate, the lens 12 or the lens system. With the lens or lens system placed after the image disc, the surface of the image disc can be mapped onto the projection screen. With this technical tool, the real image and the interference image can be varied within wide limits, and superposition can be achieved.

Multiple line lasers / eg. ion laser / and e.g. prismatic separation in front of the image plate allows the image to be displayed in several colors at the same time.

With the help of kaleidoscope optics, the projected laser image is multiplied to create a new kind of hinge.

Multiple layers of screen designs 9a, 9b can be placed one behind the other at the same time to multiply the image at depth. There is a beam splitter between the image plate and the multi-part screen, e.g. Up to 15 semi-transparent mirrors can be placed. Mirrors can be used to project the image to any surface of the room, possibly in a time varying manner.

The image plate is produced by the artist composing the scene, forming the basic pixel or its negative, and making it from transparent material / eg. plastics / molding or stamping can be used to make any copy that can be displayed using the apparatus of the invention.

An additional possibility is provided by passing the projected image through a moving grid or a rotating grid, or possibly a plurality of moving or rotating grids.

It is known that holograms are widely used in technical practice. One of its applications is in the control of photo masks, but it can also be used for many other tasks. In addition, the three-dimensional image resulting from the reconstruction can be a source of aesthetic experience, thus extending the scope of the invention.

Claims (15)

Patent claims A method of capturing and displaying a stationary or moving laser interference image or image sequence in a predetermined sequence, comprising: generating the image or image sequence to be displayed by appropriately shaping portions of a surface of a disk and sequentially exposing each surface portion to laser light; and moving the image plate or laser beam properly. 2. A method according to claim 1, characterized in that the image sheet is formed of a transparent material and / or a material having a partially or wholly reflective surface. 5. A method according to claim 1 or 2, characterized in that the image plate is illuminated with at least two different colors of laser light. -7182.793 4. Δζ 1-3. A method according to any one of claims 1 to 6! method, characterized by using a disk-shaped disk which is rotated with a synchronous motor or a variable speed motor. The method of watering a method according to any one of claims 1-3, characterized in that a cylindrical or polygonal-based column mantle is used as a formula sheet, wherein the screening is provided by a rotating mirror located in the center of the cylindrical or polygonal-based Jassab mantle and laser. Apparatus for capturing and displaying stationary or moving laser interference images or sequences of images in a predetermined sequence for carrying out the method of any one of claims 1-5, characterized in that the apparatus has a laser light source (1), a projector screen (9) and a laser light source. / 1 / and / 2 / between the projector screen / 9 /. 7 The method according to claim 6, characterized in that the device has a formula plate (2) provided with a synchronous motor or a variable speed motor. 8. An apparatus according to claim 7, characterized in that the laser light source (1) and the image plate (2) have a mechanically or electrically controlled light shutter (4). 9 The embodiment of the device according to claim 6 or 8, characterized in that the device has a formula plate / 2 / a cylindrical body with a rotating needle / 7 / having a rotating motor in the center and a prism between the mirror / 4 and the mirror. 5 / for example has a pentaprism and a reflective mirror / 6 /. An embodiment of the apparatus according to any one of the preceding claims, characterized by? that the laser light source (1) and the image plate (2) have a light beam tag (11). An embodiment of the apparatus according to any one of the preceding claims, characterized in that, between the image disc / 2 / and the projection screen / 9 /, the optical element is e.g. lens / 12 / van. 12. An embodiment of the apparatus according to any one of the preceding claims, characterized in that the laser light source operates on a / 1 / multiple lines, e.g. ion lasers. 13. An apparatus according to any one of the preceding claims, characterized in that there is a kaleidoscope optic between the light source and the image plate (2) and / or the image plate (2) and the projection screen (9). An embodiment of the apparatus according to any one of the preceding claims, characterized in that at least one movable, e.g., between the plate / 2 / and the laser light source / 1 / and / or between the plate / 2 / and the projection screen / 9 /. there is a rotating grid. -8182.793 An embodiment of the device according to any one of the preceding claims, characterized in that the projection screen (9a, 9b) consists of at least two light-transmitting meshes spaced apart. An embodiment of the apparatus according to any one of the preceding claims, characterized in that a light beam splitter, e. G., Is provided between the image plate and the multipart projector. semi-transparent mirror / 13 /.