Optical pickup lens driving apparatus
A drive device and pick-up technology, which is applied to beam guide devices, optical recording heads, head configuration/installation, etc., can solve problems such as complex structures, difficulties in reading and recording information, and inability to obtain sufficient shockproof effects , to achieve the effect of improving the recording performance
Inactive Publication Date: 2004-12-01
SYST ENGINEERS +1
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Problems solved by technology
[0006] However, in the conventional 4-wire type optical pickup lens drive device, the G sensor and backup semiconductor memory are used to ensure the continuity of data as a countermeasure against external vibrations and shocks. The structure is complicated, and for weak vibrations, Using tools such as shock-absorbing rubber, there is a problem that a sufficient shock-proof effect cannot be obtained
Therefore, it becomes difficult to read the information recorded on the high-density recording medium or to record the information
Method used
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[0052] An embodiment of the drive device for an optical pickup lens of the present invention will be described below with reference to the drawings, but the present invention is not limited to this embodiment. In addition, the embodiment of the present invention shows the best example of the invention, and the terms of the present invention are not limited thereto.
[0053] First, according to Figure 1 to Figure 4 The first embodiment will be described. figure 1 It is a plan view of the driving device for the optical pickup lens, figure 2 A side view of the driving device for the optical pickup lens, image 3 is a cross-sectional view of the gimbal mechanism, Figure 4 along image 3 The profile of the IV-IV line, Figure 5 It is a plan view of the connecting part of the movable member and the balance shaft, Image 6 This is a view of the connection between the movable member and the balance shaft viewed from the movable member side.
[0054] The driving device 1 for ...
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An optical pickup lens driving apparatus comprises an optical pickup lens, four supporting wires which movably support a movable member, a fixing member in which the four supporting wires are supported, driving means which controls movement of the optical pickup lens by action of electromagnetic force, and a balance shaft in which one end of the balance shaft is connected to the movable member and a balance weight is provided at the other end, and a balancing middle portion of the balance shaft is oscillatably journaled in the fixing member. The optical pickup lens driving apparatus has a simple structure and improves performance of reading information or recording information.
Description
technical field [0001] The present invention relates to an optical pickup lens drive device for reading information recorded on a recording medium or recording information. Background technique [0002] In the past, as a driving device for an optical pickup lens, there has been, for example, a structure described in Japanese Patent Application Laid-Open No. 10-21562: a movable member on which an optical pickup lens is mounted is movably supported by four support wires, And use the electromagnetic effect of the permanent magnet and the driving coil to control the movement of the optical pickup lens provided on the movable member, and read the information recorded on the recording medium or record the information. [0003] However, as a high-density recording medium corresponding to a large-capacity recording medium that will be developed in the future, such as DVD, MO, HDD, etc., its performance is expected to be greatly improved. Recently, semiconductors that cannot be used ...
Claims
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Login to View More IPC IPC(8): G11B7/095G11B7/00G11B7/085G11B7/09G11B7/135
CPCG11B7/09C02F1/46104C02F1/467C02F2301/026C02F2307/10
Inventor 安藤英敏
Owner SYST ENGINEERS