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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 problems such as inconvenience and no structure of products

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

AI Technical Summary

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

[0036] 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.

[0037] 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.

[0038] see figure 1 and figure 2 As shown, the optical pick-up head 10 according to the preferred embodiment of the present invention includes a light source 11, a beam splitter 12, a first objective lens 13, a wave plate 14, a second objective lens 16, a transmitted light image detection Unit 15 and a reflected light image detection unit 17 , the optical pickup head 10 is used to read...

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Abstract

The related optical read header of an optical read device comprises a light source to send a ray, a beam splitter to permit part beam crossing, a first object lens to focus the ray on the storage media, a movable wave plate between the splitter and first lens, a second object lens to focus the penetration beam, and a penetration / reflection image detection unit to receive beam from the second lens / splitter and convert into electric signal.

Description

technical field [0001] The present invention relates to an optical reading head, in particular to an optical reading device and its optical reading head which can be used to read a penetrating optical data storage medium and a reflective optical information storage medium. Background technique [0002] With the advent of the information and multimedia era, consumers' demand for storage media capacity has increased dramatically. 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 readi...

Claims

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Application Information

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IPC IPC(8): G11B7/12G11B7/135
Inventor 谢国卿
Owner PRODISC TECH INC