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Focusing regulator of optical disk picker in swinging arm type

The technology of a swing arm and a pickup is applied in the field of focus adjusters, which can solve the problems of increasing the swing arm, unable to perform more stable tracking control, and the burden of the swing arm tracking control, and achieve the effect of stable control and tracking.

Inactive Publication Date: 2009-02-04
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the focus adjuster attached to the swing arm is used, the moment of inertia of the swing arm will increase, so it will impose a burden on the tracking control of the swing arm, and there is a disadvantage that more stable tracking control cannot be performed.

Method used

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  • Focusing regulator of optical disk picker in swinging arm type
  • Focusing regulator of optical disk picker in swinging arm type
  • Focusing regulator of optical disk picker in swinging arm type

Examples

Experimental program
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Embodiment Construction

[0025] Embodiments of the focus adjuster of the swing arm type optical disc pickup of the present invention will be described in detail below with reference to the accompanying drawings.

[0026] Of course, when describing the present invention, in order not to deviate from the gist of the present invention, well-known or specific descriptions of configurations are omitted. Meanwhile, the same reference numerals are assigned to the same components of the description, and their detailed descriptions are omitted.

[0027] Figure 1 to Figure 3 is a configuration diagram showing an embodiment according to the present invention. figure 1 is a view of the swing arm disc pickup. figure 2 yes figure 1 Enlarged view of Part II of . image 3 is displayed figure 2 View of the collimating lens guide.

[0028] As shown in the figure, the swing arm type optical disc pickup suitable for the embodiment of the present invention is composed of the following parts: a swing arm 10 hinge...

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PUM

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Abstract

The invention relates to a focusing redactor for a rocker CD pickup, comprising: a collimating lens arranged on the light path of an object lens and control the focusing; a collimating lens guide device made of magnet and composed of the three parts-a collimating lens installation seat, an elastic support device for elastically supporting the collimating lens installation seat to make it able to move to the object lens, and a guide fixed device fixed at the tail end of the rocker to support the elastic support device; and a focusing coil able to provide magnetic force for the collimating lens guide device and installed on a CD-ROM. The invention can actively control the focusing, almost not increasing the inertia moment of the rocker, thus able to firmly control tracking servo.

Description

(1) Technical field [0001] The present invention relates to a swing arm type optical disc pickup, and more particularly to a method for reducing the weight of a focus adjuster installed in a swing arm, thereby enabling not only adjustment, but also reduction of the moment of inertia of the swing arm for stable tracking control Disclosed is a focus adjuster for a swing arm type optical disc pickup. (2) Background technology [0002] An optical disc pickup is a device that irradiates laser light on an optical disc to store data on the optical disc, or uses the light reflected by the optical disc to read data from the optical disc. It is one of the core components installed in the optical drive. [0003] There are two types of mounting methods for the optical disc pickup, a carrier driving method and a swing arm driving method. The carrier drive mode refers to the way that the optical pickup is installed on the base so that it can move in a straight line, and the optical pick...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/09
Inventor 郑淮元
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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