JPS61280043A - Optical disk device - Google Patents

Abstract

PURPOSE:To clean a cloud and sticking dust away from a lens at any time and to reduce reading and writing errors of a disk medium by adding a lens cleaning part to an optical disk device. CONSTITUTION:When a device is powered on and put in operation, a head part moves within a range L to write or read data on or out of an optical disk medium 1. When the operation is finished, the head part 5 moves to outside the optical disk medium and a lens 4 stop the head part 5 contacts the cleaning material 8 of the lens cleaning part 3, so that the lens is wiped in a movement range M. Further, when the device is powered off, the lens part 5 contacts the reverse surface of the cleaning part 3, so no dust sticks on the lens 4.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an optical disk device, and more particularly to a cleaning structure for a head portion that emits laser light.

2. Description of the Related Art Conventionally, this type of original disk device 1lUa! As an example is shown in FIG. 4, the lens 40 portion of the head section 5 that emits laser light is always exposed. Therefore, if it is operated in this state for a long period of time or in a dusty place, the lens 41C may become cloudy with dust attached to it, making it impossible to operate normally. There is a drawback that the lens 4 must be temporarily stopped and the lens 4 must be cleaned.

Furthermore, if the lens 4 of the head unit 5 is operated with dust attached to it, the operational performance of the laser beam output from the head unit 5 will deteriorate, resulting in errors in writing and reading data on the optical disk medium l. there were.

Problems to be Solved by the Invention The purpose of the present invention is to solve the above-mentioned drawbacks, namely, because dust adheres to the lens of the head section and fogging occurs, it is not necessary to temporarily stop the optical disk device and clean the lens. This original disk device solves the problem of not being able to write or read data to or from the original disk medium properly if it is operated with dust attached to it.
Our goal is to provide the following.

Means for Solving the Problems In order to solve the above-mentioned problems in the present invention, a one-source disk device includes a rotary motor, a head portion having a lens for outputting laser light, a head guide rail, and a rotary motor when not in operation. A configuration is adopted which includes a lens cleaning section that contacts the lens VC at a position outside the movement range during operation when the head section moves.

Operation Since the present invention is configured as described above, the head section that outputs the laser beam moves on the head guide rail and operates, and before the start of the operation and at the end of the operation, the head section moves outside the movement range during the operation. At this position, the lens of the head comes into contact with the cleaning material of the lens cleaning section and is cleaned.

Example Next, embodiments of the present invention will be described with reference to the drawings.

Referring to FIG. 1, which shows an embodiment of the invention in front view,
The original disk device of the present invention includes a rotary motor 2 for driving the original disk medium 1, a head section 5 that outputs laser light and has a lens 4, a head guide rail 6, and a lens cleaning section 3. FIG. 2 shows an enlarged view of the lens cleaning section 3, in which a soft cleaning material 8 is attached to a holding plate 7 made of synthetic resin or the like.

Next, the operation of this embodiment will be explained using Figure 3.

When the device is powered on and in operation, as shown in FIG. 3(a), the head section 5 moves within a range Lt to write and read data on the original disk medium 1. When the operation is completed, the head unit 5 moves to a position [111C] outside the original disk medium as shown in FIG. 3 Φ).

In the moving range M, the lens 4 at the tip of the head section 5 comes into contact with the cleaning material 8 of the lens cleaning section 3 and is wiped. Furthermore, when the power of the device is turned off, the head unit 5
Since it is in contact with the lower surface of the cleaning section 3, dust and the like are prevented from adhering to the lens 4.

Note that the cleaning material 8 of the lens cleaning section 3 is
By regularly inspecting and replacing lenses, you will no longer have to worry about lenses becoming cloudy or having dust build up.

Effects of the Invention As explained above, according to the present invention, by adding a lens cleaning section to a single-source disk device, the lens can be constantly cleaned of fogging and adhering dust, and the reading and writing of the disk medium can be easily performed. This has the effect of reducing errors.

[Brief explanation of drawings]

Fig. 1 is a front view of an embodiment of the present invention, Fig. 2 is an enlarged front view of the lens cleaning section of Fig. 1, Fig. 3(a),
Φ) is a front view showing the operating range and non-operating position of the head section of this embodiment, respectively, and I! FIG. 4 is a perspective view of a conventional example. 1... Optical disc medium, 2... Rotating motor, 3... Lens cleaning section, 4...
...Lens, 5...Hera)"J 6...
... Head guide rail, 7 ... Holding plate, 8
...Cleaning material. 5 A-1'-°bu ¥1 figure ¥3 figure ¥4 figure

Claims (1)

[Claims] In an optical disk device that has a rotary motor that drives an optical disk medium, a head section that outputs a laser beam and has a lens, and a head guide rail for moving the head section, it is possible to move within the movement range under the optical disk medium during operation. An optical disc device characterized in that a lens cleaning section that contacts the lens is provided at a position outside the movement range where the moving head section moves before starting and at the end of the operation.