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Optical reader and its optical pick-up head

An optical reading head and optical reading technology, applied in the field of optical reading heads, can solve the problems of no structure and inconvenience of products, and achieve the effect of improving the service life, improving the reading signal, and improving the weakening of the reading signal.

Inactive Publication Date: 2006-10-04
PRODISC TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] This shows that the above-mentioned existing optical reading device and its optical reading head obviously still have inconvenience and defects in structure and use, and need to be further improved urgently.
In order to solve the problems existing in the optical reading device and its optical reading head, the relevant manufacturers have tried their best to find a solution, but for a long time, no suitable design has been developed, and the general product has no suitable structure. Able to solve the above problems, this is obviously a problem that the relevant industry is eager to solve

Method used

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  • Optical reader and its optical pick-up head
  • Optical reader and its optical pick-up head
  • Optical reader and its optical pick-up head

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Embodiment Construction

[0039] In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the specific implementation methods, Structure, characteristic and effect thereof are as follows in detail.

[0040] The optical pickup device and its optical pickup head according to preferred embodiments of the present invention will be described below with reference to related drawings, wherein the same elements will be described with the same reference symbols.

[0041] see figure 1As shown, the optical pickup head 10 according to a preferred embodiment of the present invention includes a light source 11, a first polarizing element 12, a first objective lens 13, a second objective lens 15 and an image detection unit 14 for An optical information storage medium 20 is read, especially an optical information storage medium 20 including a transmissiv...

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Abstract

The related optical read header of an optical read device comprises a light source to send a ray, a penetration record layer, a first polarization element to polarize the ray into a linear polarization ray, a first objective lens to focus the ray on the record layer and form a beam penetration light, a second objective lens, and an image detection unit to receive the penetration beam from the second lens and convert the beam into an electric signal opposite to data signal.

Description

technical field [0001] The invention relates to an optical reading head, in particular to an optical reading device capable of reading a penetrating optical information storage medium and its optical reading head. Background technique [0002] With the advent of the information and multimedia era, consumers' demand for storage media capacity has increased rapidly. Among them, because the optical information storage medium can store a large amount of data, and has the characteristics of portability and long-term storage of data, it is quite popular to use the optical information storage medium to access data. [0003] Today's common optical information storage media include compact disc (CD, Compact Disc) and digital audio-visual disc (DVD, Digital Versatile Disc). Both structures include a recording layer and a reflective layer. The recording layer uses recording grooves to record data. , when an optical reading device reads data, the optical reading device emits a laser be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/12G11B7/135
Inventor 谢国卿
Owner PRODISC TECH INC