Unlock instant, AI-driven research and patent intelligence for your innovation.

Near-field optical storage reading equipment

A technology of reading equipment and near-field light, which is applied in the configuration/installation of the head, and can solve the problem of inaccurate access to the magnetic track

Inactive Publication Date: 2007-11-21
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] The regulators of existing near-field optical storage reading devices only support tracking operations, so when the disc is bent, it is impossible to accurately access the tracks

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Near-field optical storage reading equipment
  • Near-field optical storage reading equipment
  • Near-field optical storage reading equipment

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment

[0061] Fig. 2 is a first embodiment of the present invention.

[0062] As shown in FIG. 2 , the adjuster arm 201 rotates along the direction of the magnetic track with reference to the rotation axis inserted in the center of the VCM. Here, the VCM consists of a track coil on the other side of the adjuster arm and a magnet on its lower base, and by supplying current to the track coil, the adjuster arm is rotated along the track direction with the rotation axis as a reference. (Refer to Figure 1)

[0063] As shown in FIG. 2 and FIG. 3 , on one side of the adjuster arm 201 , a levitator 202 is synchronously arranged to move through a prescribed elastic action, and a pick-up lens 209 is arranged at the front end of the levitator 202 .

[0064] Through the lens support frame 211, the pickup lens 209 is fixed on the front end of the levitator 202, and the 4 iron sheets on the lens support frame 211 support the outer part above the pickup lens in the form of "".

[0065] In order ...

no. 2 Embodiment

[0071] Fig. 4 is a diagram showing a second embodiment of the present invention. Wherein, (a) is a schematic diagram of the front end of the levitator, and (b) is a plan view thereof.

[0072] As shown in Figure 4 (a) (b), on the other side of the adjuster 301 that carries out the magnetic track rotation by VCM, the levitator 302 that moves through the regulation elastic action is set, and the front end of the levitator 302 is provided with a pick-up lens 309 .

[0073] In order to wind the focusing coil 314 at the front end of the levitator 302, connect the lens support frame 311 and the extension frame 312 of the fixed pickup lens 309, and connect the extension frame 312 and the focus coil support part 313 into one, and follow the focusing The focus coil 314 is wound horizontally around the outer periphery of the coil support part 313 .

[0074] In addition, a focus magnet 315 is provided at the front end of the adjuster arm 301 at a position opposite to the back of the fo...

no. 3 Embodiment ；

[0077] Fig. 5 is a diagram showing a third embodiment of the present invention. Wherein, (a) is the figure shown at the front end of the levitator, and (b) is its plan view.

[0078] As shown in Figure 5(a)(b), at the front end of the suspension 402 of the adjuster arm 401, the lens controller 411 is used to fix the pick-up lens 409, and the lens controller 411 is connected with an extension frame 412 having a certain length. Integral to extend the end of the suspender 402. At the lower end of the extension frame 412, a focusing coil support part 414 is provided parallel to the base. In addition, the focus coil 414 is wound vertically along the outer periphery of the focus coil support portion 413, so that the surface or bottom of the optical disc is separated to a certain extent, forming a quadrangular shape.

[0079] On the bottom surface opposite to the focus coil 414 vertically wound on the focus coil support part 413, that is, along the bottom surface corresponding to t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

This invention provides one fixing load near field optical memory reader, which stores or reads information through near field light, wherein, the load adopts hinge reflection lens. This invention comprises the following parts: one suspensor with reflection lens hinged by side integrated with another supportive part; adjusting device arm rotating within certain range to trace and adjust focus; magnetic field generation device of the coil motor fixed on the above swing coil supportive part in eradiation shape; using magnetic filed to rotate rotation arm and to guide coil supportive part for arc rotation.

Description

technical field [0001] The present invention relates to a near-field optical storage and reading device, in particular to a near-field optical storage and reading device that drives the front end of an optical pick-up to the track and focus direction so that the focus is aligned with the target track position. [0002] Specifically, in the near-field optical storage and reading device developed according to the present invention, the focusing magnetic circuit is installed on the front end of the adjuster and outside the lens that can avoid the optical path, so as to form a two-stage focusing movement system. Background technique [0003] The bit (or storage mark) size of an optical disc or optical disc must be miniaturized, and the track width must be narrow, only in this way can it have a high-density storage capacity. However, in order to form bits on the optical disc storage film, the size of the light beam spot on the optical disc is limited by the diffraction limit, so ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G11B7/09
Inventor 孙都铉
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI