JPH1074372A - Cleaner disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable a user to simply clean an optical lens by loading the cleaner disk into an optical disk player and rotating the cleaner disk. SOLUTION: The cleaner disk 10 is loaded under its state of housing in a cartridge 13 into the player, so that a shutter of the cartridge 13 is opened, and the disk 10 is held in its central part by a turntable 17 and a chucking disk 18, and is then driven to rotate by a motor 16. Consequently, a block 21 mounted with an optical head is fed and guided along a rod 22 by a linear motor 23, and the optical lens 19 is moved in the radial direction of the disk to come into contact with a brush 12. Then, a focus operation is performed by a biaxial device 20, and the surface of the lens 19 is wiped by the brush 12 to remove dust stuck on this surface.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaner disk for cleaning an optical lens of an optical disk player, and more particularly to a cleaner disk suitable for removing dirt and dust that naturally accumulate on the optical lens.

[0002]

2. Description of the Related Art An optical disk player such as a laser disk player reads out a signal recorded on an optical disk by an optical head and reproduces the signal. Therefore, the optical system of the disc player dislikes adhesion of dust. Accordingly, such a player is provided with the optical lens being wiped clean during manufacture. However, during a period of six months or one year, dust gradually adheres to the lens due to the flow of air generated by the rotation of the disc inside the player or the flow of air from a fan, etc., adversely affecting recording and reproduction. Gives the result.

[0003]

The dust adhering to such a lens can be easily removed with a soft cloth or a brush. However, the lens of the optical head is inside the player's cabinet and cannot be easily accessed. Therefore, the outer casing must be removed to clean the optical lens, which cannot be easily performed by a general user. Therefore, there is a drawback that the cleaning of the optical lens has to rely on the service of the manufacturer.

[0004] The present invention has been made in view of such problems, and has as its object to provide a cleaner disk that allows a user to easily clean an optical lens.

[0005]

SUMMARY OF THE INVENTION The present invention provides a disk having substantially the same shape as an optical disk used in an optical disk player, a cartridge for storing the disk,
When the cartridge is mounted on an optical disc player,
An opening formed in the cartridge so as to expose the disk at a position facing the optical lens of the optical disk player; shutter means for shielding the opening when the cartridge is removed from the optical disk player; A cleaning member provided on the disk so as to correspond to the opening, and in contact with an optical lens that enters the cartridge when a focus operation is performed by control means on the disk player side;
And a cleaner disk for cleaning the optical lens when the disk rotates in a cartridge.

[0006] Regardless of whether or not an optical lens of an optical disk player such as a laser disk player is used, dust and dirt in the air accumulate over a long period of time, which leads to a deterioration in the level of a recording / reproducing signal, which has an adverse effect. Therefore, a disc having substantially the same shape as the optical disc and provided with a cleaning member such as a brush so as to be in contact with the optical lens is housed in a cartridge, the cartridge is mounted on a player, and the disc is rotated to drive the cabinet. This is to remove dust and dirt on the surface of the optical lens without removing the outer casing.

Therefore, according to the present invention, the optical lens is cleaned by the cleaning member provided on the cleaner disk by mounting and rotating the cleaner disk on the optical disk player in the same manner as the optical disk. It is possible to easily remove dust accumulated on the optical lens.

[0008]

FIG. 1 shows a state in which a cleaner disk according to an embodiment of the present invention is mounted on a disk player, and a cleaner disk 10 is substantially the same as an optical disk reproduced by this player. 2 and 3, a central hole 11 is formed in the center of the disk.

The brushes 12 are provided on the cleaner disk 10 at intervals of 180 ° in the circumferential direction.
The brush 12 is made of a material that does not damage the lens, for example, rabbit hair. A small hole is made in a predetermined position of the disk 10 so that the root portion is embedded. An adhesive is injected into the hole at the root of the brush 12 and is solidified. The hairs to be implanted may be bundled and held in advance by a cylindrical supporting means, and the holding means may be inserted into the hole.

The length of the brush 12 is as shown in FIG.
When the disc 10 is mounted on a player, it has a length that comes into contact with the optical lens 19. Such a disk 10 is accommodated in a flat rectangular parallelepiped cartridge 13 as shown in FIG. The predetermined corner portion of the cartridge 13 is cut obliquely, and the obliquely cut portion can be used for detecting erroneous insertion.

A player whose lens is cleaned by the disk 10 as shown in FIG.
A spindle motor 16 is provided at the center thereof,
A turntable 17 is provided on the output shaft of the motor 16. The turntable 17 holds the disc 10 together with a chucking disc 18 located above.

On the other hand, an optical lens 19 constituting an optical head is mounted on a biaxial device 20, and the device 20 is mounted on an optical block 21. The block 21 is guided by a guide rod 22 so as to be movable in a radial direction of the disk 10, and is driven in the same direction by a linear motor 23.

As described above, the cleaner disk 10 having the brushes 12 implanted in the radial direction at positions 180 ° apart in the circumferential direction is mounted on the player as shown in FIG. You. Then, the shutter of the cartridge 13 is opened, and the disc 1
Reference numeral 0 denotes a spindle motor 16 whose center is held by a turntable 17 and a chucking disc 18.
Is driven to rotate. Then, the block 21 on which the optical head is mounted is sent by the linear motor 23 while being guided by the rod 22, and the optical lens 19 is moved.
Moves in the radial direction of the disk 10 and reaches a position where it contacts the brush 12. In such a state, the two-axis device 2
0, a focusing operation is performed. At this time, as shown in FIG.
The dust is wiped off and the dust adhering to the surface is removed.

As described above, by mounting the cleaner disk 10 on the player as shown in FIG. 1 and rotating the same, the dust accumulated on the lens 19 is removed and the adverse effect on recording or reproduction is eliminated. Becomes possible. Further, by periodically cleaning the optical lens 19 using the cleaner disk 10, it is possible to prevent adverse effects on recording and reproduction. This eliminates the recording / reproducing trouble due to dust attached to the lens 19. In addition, such a cleaning operation can be easily performed by the user, and does not need to depend on the service of the manufacturer. The brush 1 on the cleaner disk 10
The planting position of No. 2 is not necessarily limited to the position shown in FIG. 3, and various modifications are possible. For example, as shown in FIG. 4, the brush 12 may be formed in a belt shape in the circumferential direction. .
Further, another cleaning member may be provided on the disk 10 instead of the brush 12.

[0015]

As described above, the present invention provides a disk having substantially the same shape as an optical disk used in an optical disk player, a cartridge for storing the disk, and an optical disk when the cartridge is mounted on the optical disk player. An opening formed in the cartridge so as to expose the disc at a position facing the optical lens of the player; shutter means for blocking the opening when the cartridge is removed from the optical disc player; And a cleaning member that comes into contact with the optical lens that enters the cartridge when the focusing operation is performed by the control means of the disk player, and the optical lens is cleaned when the disk rotates in the cartridge. What was done That.

Therefore, by using such a cleaner disk, the optical lens of the player can be easily cleaned.

Further, such a cleaning operation is performed by mounting a cartridge containing a disk in an optical disk player. When a focusing operation is performed by control means on the player side, an optical lens enters the cartridge, and The cleaning is performed by contacting the cleaning member of the disk rotating in the inside. Therefore, the disc is stored in the cartridge not only at the time of non-use but also at the time of use, so that the cartridge is not unnecessarily stained and the optical lens is not stained by the cartridge. Further, since the optical lens enters the cartridge to perform cleaning, it is not necessary to guide the cleaning member to the outside of the cartridge.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part of a player to which a cleaner disk is mounted.

FIG. 2 is a vertical sectional view of a main part showing a cleaning operation by a cleaner disk.

FIG. 3 is a plan view of a cleaner disk.

FIG. 4 is a plan view of a cleaner disk.

[Explanation of symbols]

10 ‥‥ cleaner disk, 11 ‥‥ center hole, 12 ‥‥
Brush, 13 cartridge, 16 spindle motor, 17 turntable, 18 chucking disc, 19 optical lens, 20 biaxial device,
21 ° optical block, 22 ° guide rod, 23 °
‥ Linear motor

Claims (1)

[Claims] 1. A disk having substantially the same shape as an optical disk used in an optical disk player, a cartridge for accommodating the disk, and when the cartridge is mounted on the optical disk player,
An opening formed in the cartridge so as to expose the disc at a position facing the optical lens of the optical disc player; a shutter means for shielding the opening when the cartridge is removed from the optical disc player; A cleaning member provided on the disk so as to correspond to the opening and contacting an optical lens that enters the cartridge when a focus operation is performed by control means on the disk player side; A cleaner disk for cleaning the optical lens when is rotated in the cartridge.