KR100601261B1 - Disk cartridge for holographic - Google Patents

Abstract

The present invention relates to a holographic disk cartridge, wherein a fixing hole (14) is formed at one side of the window (13), one end of which is fitted into the fixing hole (14), and the other end of which is fixed inside the disk cartridge (10). When the opening and closing prevention means 20 is installed, and the user artificially opens the window 13, the opening and closing prevention means 20 is inserted into the fixing hole 14 to prevent the opening. The opening and closing means 20 is separated from the fixing hole 14 by 30 to open the window 13. Therefore, by preventing the window of the disc cartridge from being artificially opened by the user, there is an effect of protecting the stored data from external light and preventing damage to the disc that may be caused by a user's mistake.

Description

Disc cartridge for holographic {DISK CARTRIDGE FOR HOLOGRAPHIC}

1a and 1b is a block diagram of a typical holographic disk cartridge,

2 is a plan view of a holographic disc cartridge according to the present invention;

3 and 4 are opening and closing operation of the holographic disk cartridge according to the present invention.

<Description of the symbols for the main parts of the drawings>

10 disc cartridge 12 disc

13: window 14: fixing hole

20: opening and closing means 22: guide boss

30: disc tray

The present invention relates to a holographic disk cartridge, and more particularly, to a holographic disk cartridge which prevents the window of the disk cartridge from being artificially opened by a user.

Recently, holographic digital data storage systems have been actively researched as semiconductor lasers, charge coupled devices (CCDs), liquid crystal displays (LCDs), and the like have been developed. Holographic digital data storage systems have the advantages of large storage capacity and ultra-fast data transfer speed, and are already being used as fingerprint recognition systems for storing and reproducing fingerprints.

Such holographic data storage is largely a read only memory system (ROM), a write once read many (WORM) system that can be written and read many times, and RW (repeated recording and playback). Rewritable).

The WORM and RW systems have a large problem in the recording and reproducing process when the photosensitive material is exposed to light when the photopolymer which is a photosensitive organic material is used as the storage material.

1A and 1B show a configuration of a general holographic disc cartridge, in which a disc 2 capable of recording and reproducing is mounted in a rectangular disc cartridge 1. Then, the disc cartridge 1 is transported and mounted in a disc tray (not shown) so that a window 3 sliding open to one side when reading the disc 2 is connected to the top and bottom surfaces of the disc cartridge 1. Is installed.

The disk cartridge 1 reacts to light of all wavelengths in addition to the laser wavelength, and therefore, a structure that is not easily exposed to light is required to fully protect the data once stored.

Nevertheless, the conventional disc cartridge 1 has a structure in which the window 3 can be opened and closed artificially by a user. Therefore, when the user accidentally opens the window 3 artificially, the light sensitivity of the storage material is very high, and thus the light sensitivity of the storage material is exposed to the optical power of general sunlight or illumination light, resulting in the degradation of the storage material. This reduces the level of the reproduced signal or distorts the signal during data recording and reproducing, causing a serious problem of deteriorating the signal-to-noise ratio (SNR). .

The present invention has been made to solve the above-described drawbacks. The present invention provides a method of artificially disposing a window of a disc cartridge by a user in order to protect stored data from external light and to prevent damage to a disc that may be caused by a user's mistake. It is an object to provide a holographic disc cartridge which is prevented from being opened.

In order to achieve the above object, the present invention provides a holographic disc cartridge having a window which is transported and mounted in a disc tray and is slid open to one side when a disc is to be read, and a fixing hole is formed at one side of the window. One end is inserted into the fixing hole and the other end is elastically installed inside the disc cartridge, and the opening and closing prevention means is formed to be fixed. When the user artificially opens the window, the opening and closing prevention means is inserted into the fixing hole and opened. This prevents and provides a holographic disk cartridge in which the opening and closing prevention means is separated from the fixing hole by the disk tray and the window is opened.

The above objects and various advantages of the present invention will become more apparent from the preferred embodiments of the invention described below with reference to the accompanying drawings by those skilled in the art.

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

2 is a plan view of a holographic disc cartridge according to the present invention, and FIGS. 3 and 4 are opening and closing operations of the holographic disc cartridge according to the present invention.

As shown in FIG. 2, a disc 12 capable of recording and reproducing is installed in a rectangular disc cartridge 10, and the disc cartridge 10 is transported and mounted in the disc tray 30 so that the disc 12 is installed. When reading the window 13 is slid open to one side is installed along the top, bottom center of the disc cartridge 10.

Here, in accordance with the present invention, an apparatus for preventing the window 13 from being artificially opened is installed in the disc cartridge 10.

On one side of the window 13 is formed a fixing hole 14 facing upward, one end is fitted into the fixing hole 14 and the other end is the opening and closing prevention means 20 is fixed to the inside of the disc cartridge 10 Is installed.

The opening and closing prevention means 20 is made of a synthetic resin material having elasticity, it is formed to be bent "S". At least one guide boss 22 is disposed in the vicinity of the fixed end to elastically support the opening and closing prevention means 20 having one end fixed thereto.

Referring to the operation of the holographic disk cartridge according to the present invention configured as described above is as follows.

Referring back to FIG. 2, since the opening and closing fixing means 20 is fitted into the fixing hole 14 of the window 13, opening of the artificial window 13 of the user is prevented.

When such a disk cartridge 10 is mounted in the disk driver, it operates as shown in FIG.

The disc tray 30 advances to open the window 13 and presses the bent portion of the opening and closing prevention means 20, and the opening and closing prevention means 20 pressed downward has the other end fixed hole 14 in a state where one end is fixed. ) Thus, the free window 13 is opened by the continuous forward operation of the disc tray 30.

Recording and reproduction are made with the open disc 12.

When the recording and reproducing of the disc 12 are completed, as shown in FIG. 4, when the disc tray 12 is pressed backward while the window 13 is opened, the disc tray 12 is pressed. The opening / closing preventing means 20, which is elastically supported in the above, is lifted upward by the restoring force, and is fitted into the fixing hole 14 of the window 13 which is in the original position.

As such, the opening and closing prevention means 20 prevents the window 13 from being opened by a user's mistake, thereby preventing the photosensitive recording material from being exposed to sunlight or a light tube in advance.

In the above description, it should be understood that those skilled in the art can make modifications and changes to the present invention without changing the gist of the present invention as merely illustrative of a preferred embodiment of the present invention.

As described above, the holographic disk cartridge according to the present invention protects the stored data from external light by preventing the window of the disk cartridge from being artificially opened by the user, and may cause a user's mistake. It is effective in preventing damage to the disc.

Claims (3)

In the holographic disk cartridge provided with a window which is transported and mounted in the disk tray and sliding to one side when reading the disk, A fixing hole is formed on one side of the window, One end is fitted into the fixing hole and the other end is fixed to the opening and closing prevention means is formed elastically in the disc cartridge, When the user wants to open the window artificially, the opening and closing prevention means is inserted into the fixing hole to prevent the opening, and in the disc driver, the opening and closing prevention means is separated from the fixing hole by the disc tray and the window is opened. Disk cartridge for graphics. delete The method of claim 1, The holographic disk cartridge further comprises a guide boss inside the disk cartridge to elastically support the opening and closing means.

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