KR20150127384A - Apparatus and method for storing and playing moving picture in hologram film. - Google Patents

Abstract

Provided are a device and a method which can store and reproduce a moving picture using a smaller film with an area smaller than 1/100 of a conventional film in configuring a holographic film and a laser optic device to store and reproduce moving pictures. By using the holographic film for an optic system of a moving picture system, the moving picture system can be reduced in size, and especially, only by radiating a laser pointer on the holographic film in a reproduction system, the reproduction system that projects a high-resolution big-size moving picture on a screen can be arranged. The system enables a shutter for laser beams, which is interlocked with a feed mechanism for the holographic film, to be easily controlled, and a reproduction device is portable and can reproduce large-size moving pictures. The device and method of the present invention provide the advantages of reducing the volume of the reproduction device since the holographic film with a higher resolution than that of a film that has been used in an existing movie theater is used, realizing a low power consumption system with less heat since a laser light source is used as a reproduction light source, and preventing illegal reproduction in advance.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to an apparatus and a method for storing and playing back moving images on a holographic film.

The present invention relates to a holographic film for storing and reproducing a moving image and an apparatus and a method capable of storing and reproducing images even when using a small film having an area smaller than 1/100 than an existing movie film in constituting an optical apparatus.

Particularly, the present invention can reduce the volume of a reproducing apparatus by using a hologram film having higher resolution than a film used in a conventional movie theater, and can reduce a heat by using a laser light source as a reproduction light source, And to a device and a method having the feature of preventing inadvertence.

Generally, a projection apparatus for a movie is configured as shown in FIG. As the resolution of the image increases, the size of the film becomes larger and the brightness of the light source must also be brighter. In other words, when projecting images onto a very large screen, such as IMAX movies, you have to use four times more film than regular film. Which has a disadvantage in that it requires a large-sized projector and a very high-luminance illumination.

  Generally, when the area of the film is increased, the lens of the projector must also be proportionally enlarged. However, it does not matter if the diameter of the lens is increased, but the chromatic aberration due to the thickening of the lens is also increased and the image quality of the projected image is deteriorated .

It is an object of the present invention to solve the above problems and to provide a structure for solving size problems and brightness problems using a holographic film instead of a movie film and using a laser light source as a method for preventing a lens from becoming large in size And to provide a device and a method which are featured.

  To achieve the above object, the present invention features a structure for downsizing a large projector using the method of FIGS. 2 and 3. That is, by using a small hologram film and a high efficiency laser light source, a simple and compact optical system can be constructed.

  SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a high-definition (UHD) A hologram film is used to reduce the size of the lens, and a laser light source is used to reduce the heat generation of the projector even in a high light source.

  In addition, in the present invention, the storage of images is stored in a digital hologram production method as shown in FIG. 2, thereby making it difficult to duplicate contents.

  Also, as shown in FIG. 3, the present invention is characterized in that a reproduction system is simple and a digital control technique is very few, so that a micro projector can be manufactured.

As described above, the projector using the hologram film and the laser light source according to the present invention is particularly advantageous in that the size of the reproducing apparatus can be remarkably reduced and the electronic circuit for the control is simple, An effect of preventing duplication can be obtained.

FIG. 1 is a basic structural view of a conventional movie projector.
2 is a view for explaining a structure and a principle of irradiating reference light and object light for storing a small area image in a hologram of a disk shape.
FIG. 3 is a view for explaining the structure and principle of irradiating a laser point to reproduce information stored in a disc-shaped hologram and reproducing the information on a screen.
4 is a view for explaining a structure and a principle in which a prism for receiving laser light is constituted as a hologram reproducing structure in the form of a cassette tape.

  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. In the description of the present invention, the same parts are denoted by the same reference numerals, and repetitive description thereof will be omitted.

  First, an apparatus for storing moving images in a holographic film according to the present invention and a configuration of an overall system for carrying out the method will be described with reference to FIG.

As shown in FIG. 2, in an overall system for implementing the present invention, an image storage unit includes a laser 200, an objective lens 210, an LCD 220, a blocking slit 230, a holographic film 250, a motor 251, and a vertical slider 240. In order to store an image, an image represented by an LCD is irradiated to only a specific portion of the hologram film through a small square (for example, 2 mm ² ) of a blocking slit, and is recorded simultaneously with the reference light transmitted from the reflection mirror 216 .

In FIG. 2, the hologram film is mounted on a motor such that it can rotate like a CD-ROM. When the rotation is completed, the vertical slider moves vertically to a specific distance (2 mm in the example) and moves to the next track of the hologram film. That is, the vertical slider, which is operated each time the holographic film is rotated by the motor, is interlocked. As a result, the hologram film is stored in the form of a checkerboard small area (for example, 2 mm ² ) for each image to produce a disc-shaped holographic film for a moving image. Here, the shutter 204 repeats the synchronized operation of repeatedly interrupting and passing the laser light whenever an image is displayed on the LCD.

  In the present invention, in order to reproduce a moving image in a hologram film, a conventional projector configuration is analyzed. In the case of FIG. 1, two film winding reels 100 and 101, a lamp 140 and a projection lens 130 are basically constructed There is a disadvantage that the size of the entire system such as the size of the projection film and the size of the lamp increases depending on the screen size and resolution of the screen.

  In order to solve such a problem, the present invention can be configured as a small projector by using the three color laser 301, 301, 302 as a substitute for the lamp 140 of FIG. 1 and using the hologram film 350 . Interlocking the vertical slider 352 operated by the system every time the hologram film is rotated by the motor 351; The shutter 304 repeats the synchronized operation of repeatedly interrupting and passing the laser beam at each position where one image is generated. Particularly, in the reproduction system, it is not necessary to use a lens for an enlarged image. If a point of the laser is irradiated on the hologram film due to the characteristics of the hologram, the image when the hologram is produced is reproduced like a normal projector The image is projected onto the screen. In addition, when it is desired to enlarge the image more greatly in the reproducing system, a lens can be added between the hologram film 350 and the screen 310 to reproduce a larger image.

  4, when the hologram film 430 is configured in the form of a cassette tape and the laser beam 460 is incident from the outside, the prisms 450 and 450 inside the optical path 460 90 degrees (deg.), And the laser light that passes through the film plays back the moving image.

In order to implement the present invention, a laser beam and a high-resolution film are essential. In recent years, the development of semiconductor lasers seems to have no major problems in the light source sector, and hologram films are being developed with considerable advances. In particular, the hologram film has a higher resolution than a general film, and is typically manufactured using a developer, or a photopolymer film that is recorded on a film in a dry state without a developer. A holographic film resolution has been made with a resolution of 2000 ~ 10000 pixels (Pixels) to 1mm in length, the resolution super resolution image in an area of 1mm ^2; available the recording of the image that exceeds the resolution of (UHD Ultra High Definition) Do.

  The present invention is advantageous in that it can store and reproduce a two-dimensional very large image with a very small area of a hologram film as well as a stereoscopic image recording by combining the characteristics of the hologram film and the system of FIGS.

The present invention can be applied to a projector which can reduce the size of a projector for projecting an ultrahigh resolution image on a screen. In particular, by using a laser light source and a hologram film, the heat of the projector is remarkably reduced and the portability is easy to be used variously in a display market such as a virtual reality system.

100: Winding reel 110: Film reel
120: cooling fan 130: projection lens
140: Lamp 150: Feed sprocket
200: red laser 201: green laser
202: blue laser 203: beam splitter
204: Shutter 210: Objective lens
215: beam splitter 216: reflection mirror
220: LCD 230: Slit for blocking
240: vertical slider 250: holographic film
251: motor 300: red laser
301: green laser 302: blue laser
304: Shutter 310: Screen
350: holographic film 351: motor
352: vertical slider 400: housing
410: winding reel 411: unwinding reel
420: pulley 430: film
440: transparent window 1 450: prism
400: housing (side view) 430: film (side view)
440: transparent window 1 (side view) 450: prism (side view)
451: transparent window 2 (side view) 460: laser (side view)
461: laser light path

Claims (6)

A system having a laser serving as a light source for storing a moving picture with respect to the above-mentioned invention, a system having an LCD serving as a video in the above system, and a slit for blocking only in a specific region of the film The structure of the system with the vertical slider and motor serving as the holographic film and the film transfer device for storage (figure 2)
A system in which a hologram film is used and a laser is used as a light source without a lens for image enlargement; The system structure (FIG. 3) is characterized in that the holographic film used for reproducing the moving picture is composed of a disc having a shape of a compact disc,
A system in which a hologram film is used and a laser is used as a light source without a lens for image enlargement; The system structure (FIG. 4) is characterized in that the holographic film used for moving picture reproduction has a cassette tape form and a prism in the inside thereof,
(FIGS. 2, 3, 4) of a system having a shutter for controlling interception and transmission of laser light for image storage and reproduction in the two systems, The projector system according to claim 1, wherein a projector light source is used instead of a projector lamp 2. The projector system according to claim 1, wherein a projection optical system The projector system of claim 1, further comprising a projection system (FIG. 4) of a structure using a holographic film in the form of a cassette tape and a prism, The projector system according to claim 1, further comprising a rotary motor for moving the holographic film and a vertical slider for changing the track of the rotary plate, The projector system according to claim 1, further comprising: a projector system having a structure capable of synchronizing a shutter, a motor, and a vertical slider in order to control a projection system

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