KR20000055252A - A screen and system of smogless projection type for laser - Google Patents

Abstract

PURPOSE: An opaque projective screen and a three-dimensional expression method of laser light are provided to save equipment and maintenance/repair costs and to display a screen image on which a speckle noise is remove upon using laser light regardless of the light amount projected from the outside. CONSTITUTION: A projective space unit(100) is made up of a projector and an opaque projective screen(10) separated from each other at a certain distance in a transparent closed space. The projective space unit forms on a lower end side and has more than one supply hole(30) for supplying smog to the closed space. Further, a smog discharger(36) for discharging the smog through more than one discharge hole(34) is formed on an upper end of the projective space unit. The discharger uses a device for absorbing and discharging air such as an air compressor. The supply and discharge holes are connected to each smog supplier and smog discharge hole(34) by a pipe.

Description

Opaque projection screen for laser and its system {A SCREEN AND SYSTEM OF SMOGLESS PROJECTION TYPE FOR LASER}

The present invention relates to an opaque projection screen for a laser (SCREEN) and a system thereof, and more particularly to a system capable of three-dimensionally viewing the motion of the screen and the light source suitable for the movement of the laser light source in expressing the characteristics of the laser beam to the maximum. By designing the present invention, the present invention relates to a laser screen and a system capable of playing or advertising an animation or a video or the like indoors or outdoors.

In general, when playing an image, a video signal can be played on a predetermined screen by a television, a projector, a projector (aka projector), or the like through a playback device or a wired or wireless device. In order to play such a moving picture, a means for forming an image is required. That is, in the case of a television, there must be a screen including a light emitting material emitting a video signal scanned from an electron gun in front of a CRT in a vacuum state, and in the case of a projector or a projector, a white cloth or board or a similar form is used. Need a screen.

As such, a device for reproducing an image requires a screen to which an image can be formed, which can display an image only in a very limited state. That is, in the case of television, there must be a CRT of a predetermined shape and size, and the resolution is extremely limited. In addition, the larger the size of the CRT, the more difficult to manufacture due to the flatness, resolution, etc., there is a problem that the manufacturing cost increases. In addition, in the case of using a liquid crystal display, the situation is more difficult to manufacture.

On the other hand, since a projector or a projector uses a screen such as a white cloth or board, there is no limitation in the size or shape, but there is a disadvantage that the amount of ambient light should always be small. In other words, when the image is displayed during the day or outdoors, the image formed on the screen is blurred or almost indistinguishable from the surrounding light. The same is true for television.

As such, there have been many constraints on the use of such conventional televisions, projectors, or projectors for outdoor advertising. In other words, due to the amount of external light in the daytime or outdoors, the image cannot be accurately displayed and transmitted, and its size is limited.

Therefore, due to these problems, the current video is used for outdoor advertising, which uses a combination of light emitting diodes (LEDs). That is, as shown in FIG. 1, a huge light emitting diode screen 1 is mounted on the roof (or side) of the building 2, and there must be a separate controller for controlling the blinking of the light emitting diodes of the screen 1, It was necessary to consume a lot of power to make the diode blink.

In the screen 1 in which such a number of light emitting diodes are combined, each light emitting diode 3 must be turned on or off in FIG. 2, for example, in order to display an image of "advertisement". Only color is emitted. For example, only a light emitting diode 3 of a predetermined color needs to be turned on or off for a simple advertisement even in a moving picture. For example, the phrase "advertisement" is displayed in red, and the background is displayed in green.

In addition, a plurality of diodes emitting different predetermined colors may be combined to produce a desired color. For example, each of the light emitting diodes 3 emitting red, green, and blue, which are three primary colors of light, may be combined to generate a desired color. For example, when the red and blue light emitting diodes 3 are combined, It's like purple.

On the other hand, in the case of a laser beam capable of reproducing a moving image in the past, when scanning with a laser scanning device as a moving image, photons are united by the coherent characteristics of the laser, or the motion is maintained while maintaining a fixed fixed relationship. As we continue, a temporal or spatial constant relationship is maintained between the phases of two or more waves, causing mutual interference. Therefore, since the quantum generated on the polarization causes wavelength interference in the human eye even outside 100m, the speckle noise phenomenon occurs, so that a clear image cannot be seen.

As the screen is made of a combination of light emitting diodes conventionally used for outdoor advertising, the larger the size, the larger the amount of light emitting diodes required, the more power consumption, and the more complicated wiring and difficult to control the controller. There was a problem of rising production costs. In addition, there was a problem that takes a lot of time and money to maintain.

In addition, in the case of the projector or the projector, the cost of the screen on which the image is formed is not high, but there is a problem that it is not possible to provide a clear image in a place where the amount of light of the day or the outside is large indoors or outdoors.

In addition, the trend of global advertising media is flowing to new techniques that require artistic value rather than generalized video techniques.

The present invention has been made to solve the above problems, is not limited by the amount of light irradiated from the outside, inexpensive facility and maintenance costs, and screen images without speckle noise when using a laser beam to be displayed The purpose is to provide an opaque projection screen and three-dimensional representation of laser beams.

Another object of the present invention is to provide an opaque projection screen for a laser and a system thereof capable of playing a video or commercial advertisement outdoors or indoors using an opaque projection screen for processing an image plane of a laser.

1 is a schematic diagram showing the installation of a billboard for a conventional outdoor advertising,

2 is a schematic view showing a display unit of the billboard of FIG.

3 is a front view of an opaque projection screen according to the present invention,

4 is a cross-sectional view taken along the line A-A of FIG.

5 is a cross-sectional view showing another embodiment of the present invention;

6 is a basic configuration of an opaque projection screen for a laser according to the present invention,

7 is a configuration diagram showing a method of projecting an image on the front of the opaque projection type screen for a laser according to the present invention,

8 is a schematic perspective view for explanation of FIG. 7;

9 and 10 is a configuration diagram showing a method of projecting an image on the back of the opaque projection type screen for laser according to the present invention,

♣ Explanation of symbols for main part of drawing ♣

10: screen 12: transparent material

14: etching portion 16: sheet paper

18: projector 20: player

22: amplifier 24: personal computer

26: speaker 28: screen support plate

30: supply hole 32: smog feeder

34: exhaust hole 36: smog ejector

38, 40, 42: reflector 100: projection space portion

In order to achieve the above object, the present invention provides a screen for processing an image of a projector, which is installed in a transparent sealed predetermined space in which smog is sucked or discharged, and converts a signal reproduced from a playback device into a laser beam in the projector. It is possible to achieve by providing an opaque projection type screen for a laser, in which a given image is formed on both sides at a predetermined ratio, and one side or both sides of the transparent material is etched opaquely in the second or third order at a predetermined ratio.

In addition, the present invention provides a screen system for processing an image of a projector, a reproducing apparatus for reproducing a laser and a video signal, a projector for projecting a signal reproduced from the reproducing apparatus at a predetermined distance, and a predetermined position from the projector. An opaque projection type screen installed at the front and displaying the projected light on both sides at a predetermined ratio, a projection space portion in which the projector and the opaque projection type screen are spaced apart by a predetermined distance in a transparent sealed space, and a lower side of the projection space portion One or more supply holes are formed in the supply to supply the smog from the smog supply, and one or more discharge holes formed on one side of the upper end of the projection space portion to discharge the smog in the projection space portion from the smog ejector is included by the smog flowing into the projection space portion To make the projected movie appear three-dimensional It features an opaque projection screen system for lasers.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

3 is a front view of an opaque projection screen for a laser according to the present invention, and FIG. 4 is a cross-sectional view taken along the line A-A of FIG.

The opaque projection type screen 10 for laser is etched one side or preferably both sides opaque at a predetermined ratio, the etching process is a gas corrosion treatment, propeller (PROPELLER) which is a glass processing technology on one side or both sides of the transparent material 12 Etching process or sanding (SANDING) process to have an etching portion (14).

The screen 10 on which one or both surfaces are etched may be made of glass, acrylic, lexic acid, or diffusion type in addition to the transparent material 10, and an opaque thin film resin may be preferable.

The ratio to be etched can be from 10 to 90%, preferably at a rate of 50%. The thickness of the etching portion 14 etched on one or both surfaces of the transparent material 12 is about 1 to 99% of the thickness of the entire transparent material 12, preferably 1%.

In the screen 10 having the etching portion 14 etched in this way, an image made of light is displayed on the etching portion 14, and the light passing through the etching portion 14 passes through the transparent material 12. . Therefore, the image displayed on the etching unit 14 can be seen from the front and the rear surface of the etching unit 14, respectively. That is, the image formed on the etching unit 14 reflects a predetermined amount of light toward the front of the etching unit 14 while remaining in the state scanned in the etching unit 14, and the etching unit 14 is removed. This is because the light passed through the transparent material 12 again.

5 is a cross-sectional view showing another embodiment, wherein the screen 10 may be used by adhering an opaque sheet paper 16 in a predetermined ratio to one or both surfaces of the transparent material 12, or two transparent materials 12 It is also possible to incorporate the sheet paper 16 in between.

At this time, the sheet paper 16 treated with a hairline on the back surface of the screen 10 is produced and processed, the opacity ratio of the sheet paper 16 is preferably 10 to 90%, one surface of the transparent material 12 or The thickness of the sheet paper 16 adhered to both surfaces is about 1 to 99% of the thickness of the entire transparent material 12, preferably 1%.

The laser screen 10 as described above can display still images and moving images indoors or outdoors, and in particular, can be installed for commercial advertising.

6 is a basic configuration of an opaque projection type screen for a laser, and the playback device 20 is a video cassette tape recorder (VCR), a digital multi-function disc player (DVDP), a laser disc player (in L), or a compact disc player (CDP). Is used, or the video signal reproduced from the personal computer (PC) 24 is outputted. In addition, the reproducing apparatus 20 reproduces a laser and a video signal, and receives and reproduces an image signal through a wire or wirelessly. In other words, a wired line reproduces an image signal received through a cable, and a radio line can receive an air wave to reproduce an image signal. Further, an amplifier 22 for amplifying the sound signal generated by the reproduction device 20 or the personal computer 24 to a predetermined level, and a plurality of speakers 26 for outputting the sound signal amplified by the amplifier 22 to the outside. Is connected and installed. Therefore, the audiovisual effect can be produced by the shape and sound generated through the screen 10 and the plurality of speakers 26.

The projector 18 projects the image signal reproduced from the playback device 20 with a laser beam at a predetermined distance, and the projector 18 may be a projector, a projector, or an OHP.

The opaque projection screen 10 displays light projected and installed at a predetermined position from the projector 18 at a predetermined ratio on one side or both sides. The opaque projection screen 10 is etched on one or both surfaces of the transparent material 12. In addition, the opaque projection type screen 10 adheres opaque sheet paper to transparent glass, or an opaque thin film resin is used.

7 and 8 are cross-sectional and schematic perspective views illustrating a method of projecting an image onto a front surface of an opaque projection type screen for laser, in which the projection space part 100 is provided with the projector 18 and the screen support plate 28 in a transparent enclosed space. The opaque projection-type screen 10 installed in the above is configured to be spaced apart by a predetermined distance, and the projection space part 100 is formed at one side of the lower side to supply smog from the smog supply 32 that generates and supplies smog to the enclosed space. One or more supply holes 30 are formed. Smog is a fog or smoke that can produce a three-dimensional effect by scattering or diffusely reflecting the laser light is used.

In addition, the smog ejector 36 is formed on one side of the upper end of the projection space portion 100 to discharge the smog in the sealed space at a predetermined speed through one or more discharge holes 34. As the smog ejector 36, a means for sucking and discharging air, such as an air compressor, is used. The supply hole 30 and the discharge hole 34 are respectively connected to the smog supply 32 and the smog discharge hole 34 by a pipe or a pipe.

9 shows a method of projecting an image onto the back of the opaque projection type screen 10 for a laser. In the transparent projection space 100, the screen 10 and the projector 18 are configured in close proximity. The reflective plate 38 for reflecting the light projected from the projector 18 on the opposite side of the screen 10 to form an image on the screen 10 is installed at a predetermined angle.

In the case of FIG. 10, the image is projected on the rear surface of the screen 10. The screen 10 and the first reflecting plate 40 are arranged in a position close to each other in the projection space 100, and the projector 18 is provided. And the second reflecting plate 42 is disposed in a proximal position so that the light projected from the projector 18 is reflected by the first reflecting plate 40 and then reflected by the second reflecting plate 42 again to display an image on the screen 10. The first reflecting plate 40 and the second reflecting plate 42 are installed at predetermined angles.

9 and 10, it can be seen that the distance between the screen 10 and the final reflector 42 can be closer when more than one reflector 38, 40, 42 is installed.

That is, as a result of installation and operation, it can be used without the reflecting plates 38, 40, 42 when the projection distance is about 4.15m or more, and when the reflecting plate 38 is one, it is about 2m or so, and the reflecting plates 40, 42 In the case of more than one, the laser image could be projected within about 1.5 m.

Accordingly, it can be seen that it can be installed and driven separately for outdoor use or indoors according to the place or use to be used, and can be used for home or office use.

As described above, the laser opaque projection screen of the present invention and the screen system using the same can be used indoor or outdoor advertising by using an opaque projection screen that does not completely transmit or reflect the image easily if those skilled in the art. It will be appreciated, and it is readily apparent that the construction and operation of the present invention is not limited to those described above, but may be modified, substituted, converted, and extended.

As described above, the present invention is an opaque projection type for laser which can display images by etching by various etching techniques at one ratio on one or both surfaces of glass, acrylic, lexic acid, opaque thin film resin or diffusion type transparent material. Projects the image signal reproduced from the playback device into the screen from the projector into the laser beam in a transparent sealed predetermined space provided with a screen, and smog flows into the space where the laser beam is projected to produce scattering or diffuse reflection of the laser beam. 3D images can be viewed on one or both sides of the output from the playback device and the projector, and are not limited by the amount of light emitted from the outside, and are inexpensive to install and maintain. Outdoor or indoor using an opaque projection screen Play the video, or to have the effects of which can display commercial advertisements.

Claims (14)

In the screen processing the image of the projector, It is installed in a transparent sealed predetermined space where smog is sucked in or discharged, and the signal reproduced from the playback device forms an image converted into laser light in the projector at a predetermined ratio on one side, and one side or both sides of the transparent material An opaque projection screen for lasers, characterized by being etched opaquely in either secondary or tertiary at a ratio. The opaque projection screen of claim 1, wherein the transparent screen is made of glass, acrylic, opaque thin film resin, or lexic acid, or a diffusion type material. The opaque projection screen for laser according to claim 1 or 2, wherein the proportion of the transparent material to be etched is 10 to 90%. The opaque projection screen for laser according to claim 1 or 2, wherein the thickness of the transparent material is 1 to 99% of the total thickness. The opaque projection-type screen for laser according to claim 1, wherein the etching treatment is any one of gas corrosion treatment, propeller etching treatment or sanding treatment on one or both surfaces of the transparent material. The opaque projection-type screen according to claim 1, wherein the screen is bonded to one or both surfaces of the transparent material by a predetermined ratio of opaque sheet paper or hairline treated sheet paper. 7. An opaque projection screen according to claim 6, wherein the opacity ratio of the sheet paper is 10 to 90%. In the screen system for processing the image of the projector, A playback device that reproduces laser and video signals, A projector for projecting a signal reproduced from the playback apparatus to a predetermined distance; An opaque projection type screen installed at a predetermined position from the projector to display the projected light on both sides at a predetermined ratio; A projection space part in which the projector and the opaque projection screen are separated from each other by a predetermined distance in a transparent sealed space; At least one supply hole formed at one side of the lower end of the projection space to supply smog from a smog feeder, One or more discharge holes are formed on one side of the projection space portion to discharge smog in the projection space portion from the smog ejector so that the video projected on the screen by the smog flowing into the projection space portion appears in three dimensions. Opaque projection screen system for lasers. The apparatus of claim 8, wherein the player is one of a video cassette tape recorder (VCR), a digital multi-function disk player (DVDP), a laser disk player (LDP), a compact disk player (CDP) or a personal computer (PC). An opaque projection screen system for laser, characterized in that applied to. The apparatus of claim 8, wherein the screen and the projector are arranged in close proximity to each other in the projection space, and a reflector is provided at a predetermined angle to reflect light projected from the projector opposite to the screen to form an image on the screen. An opaque projection screen system for lasers. 9. The apparatus according to claim 8, wherein the projection space portion is configured to be in close proximity to the screen and the first reflector, and the projector and the second reflector are arranged in proximity to each other so that the light projected from the projector is reflected by the first reflector. The second reflecting plate is reflected back to form an image on the screen, wherein the first reflecting plate and the second reflecting plate is a laser opaque projection screen system, characterized in that provided at a predetermined angle. 12. An opaque projection screen system for a laser according to claim 11, wherein the distance between the screen and the final reflector is close when there is more than one reflector. The opaque projection screen system according to claim 8, wherein the reproducing apparatus receives and reproduces an image signal through a wire or wirelessly. The opaque projection screen system according to claim 1 or 8, wherein the screen is applied for indoor or outdoor advertising.