JPH054320U - Optical disk device - Google Patents

Abstract

(57) [Abstract] [Purpose] To facilitate the cleaning of the objective lens of the optical disk device. [Structure] A cleaning brush is incorporated, and an optical pickup is moved to a position below the brush to remove dust adhering to the objective lens. [Effect] The dust on the objective lens can be removed without disassembling the optical disk device.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a method of cleaning an objective lens on an optical pickup of an optical disk device.

[0002]

[Prior Art]

 FIG. 3 shows a configuration example of a conventional device. In the figure, 1 is an objective lens, 2 is an optical pickup, and 3 is a linear motor for moving the optical pickup.

In the conventional example, a cleaning unit is not provided in the optical disk device. Therefore, when it is necessary to clean the objective lens of the optical pickup, the device is disassembled and manually cleaned with a cotton swab or the like.

[0004]

[Problems to be solved by the device]

 Since the conventional optical disc device is configured as described above, if dust adheres to the objective lens of the optical pickup and the transmittance of light causes the recording information read error on the optical disc medium to occur, it must be manually performed. It requires disassembly and cleaning, and requires specialized technology. There were problems such as high costs.

The present invention has been made in order to solve the above problems, and an object thereof is to obtain a device capable of automatically cleaning inside the device.

[0006]

[Means for Solving the Problems]

 In the optical disk device according to the present invention, a cleaning brush is fixed in the moving range of the optical pickup moved by the linear motor inside the device and outside the mounting area of the optical disk medium.

[0007]

In the brush for cleaning the optical pickup according to the present invention, the brush is slid by moving the optical pickup to the position where the cleaning brush is fixed and moving it back and forth within a certain range by the linear motor. , Clean the objective lens on the optical pickup.

[0008]

【Example】

 Example 1. An embodiment of this invention will be described below with respect to wind. In FIG. 1, 1 is an objective lens, 2 is an optical pickup, 3 is a linear motor, 24 is a cleaning brush, and 25 is a cleaning brush support rack. In FIG. 2, reference numeral 26 is a spindle motor for rotating an optical disk, and 27 is an optical disk medium.

The objective lens 1 is placed above the optical pickup 2 and integrated with the optical pickup. When recording or reading information on the optical disc medium, the linear motor 3 moves the optical pickup 2 along the lower side of the optical disc medium 27 to access the track. When cleaning is required, the optical pickup 2 is moved to the lower part of the cleaning brush 24 as shown in FIG. 2, and the optical pickup is moved back and forth a proper number of times. By this operation, the surface of the objective lens 1 on the optical pickup is rubbed by the cleaning brush 24. As a result, the disturbance on the objective lens is removed.

Although the cleaning brush 24 is fixed by the support rack 25 in the above-described embodiment, the cleaning brush may be fixed to the lower side surface of the upper part of the optical disk device housing (not shown).

[Effect of the device]

 As described above, according to the present invention, when the dirt of the objective lens on the optical pickup due to dust generated inside the optical disk device or entering from the outside is removed, the cleaning work which is conventionally performed manually is performed. Since it can be automatically performed without disassembling, cleaning can be performed easily without requiring specialized knowledge.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing an internal structure of an optical disk device according to an embodiment of the present invention.

FIG. 2 is an explanatory diagram showing the operation of the embodiment of the present invention.

FIG. 3 is a perspective view similar to FIG. 1 showing a conventional example.

[Explanation of symbols]

 1 Objective lens 2 Optical pickup 3 Linear motor 24 Cleaning brush

Claims (1)

[Claims for utility model registration] 1. An optical pickup using a laser beam, a linear motor for moving the optical pickup, and an optical pickup cleaning brush fixed to the upper part of the moving space of the optical pickup. In the optical disk device, the optical pickup is slid against the cleaning brush to remove dust adhering to an objective lens on the optical pickup.