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Light emitting module, optical detecting module, optical pickup apparatus and manufacturing methods thereof

A light emitting module and light detection technology, which is applied in optical head manufacturing, optical recording/reproduction, optics, etc., can solve the difficulties and difficulties of minimizing the laser light source and photodiode of each optical element

Inactive Publication Date: 2004-06-16
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, it is difficult to minimize each optical component as well as to minimize the discrete laser light source and photodiode in conventional methods
Therefore, it is difficult to apply the component to a hand-held optical recording device

Method used

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  • Light emitting module, optical detecting module, optical pickup apparatus and manufacturing methods thereof
  • Light emitting module, optical detecting module, optical pickup apparatus and manufacturing methods thereof
  • Light emitting module, optical detecting module, optical pickup apparatus and manufacturing methods thereof

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Embodiment Construction

[0027] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. figure 1 shows a perspective view of an optical pickup device according to the invention; and figure 2 show figure 1 cross-sectional view.

[0028] As shown in the figure, the optical pickup device 50 according to the present invention includes a light detection module 10 and a light emission module 20 connected with the light detection module 10 .

[0029] The laser beam L1 emitted from the light emitting module 20 passes through the hole 2 formed on the photodetecting module 10, and becomes an optical pickup system ( not shown) in an incident light. The laser beam is focused and irradiated on the recording layer of the optical disc (not shown), and the light reflected back from the recording layer of the optical disc passes through a predetermined optical splitter in the direction against the optical path, and is div...

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Abstract

Disclosed are a light emitting module, an optical detecting module, an optical pickup apparatus formed by coupling the ultra-minimized light emitting module and the optical detecting module, and manufacturing methods thereof. To this end, ultra-minimization, a micro machining technique fit to a mass production, and a semiconductor device assembly manufacturing process are applied, thereby reducing a component cost and increasing uniformity of components.

Description

technical field [0001] The present invention relates to an optical pick-up device for recording and storing optical information into an optical data memory, and more particularly, to a light emission module, a light detection module and miniaturization of the light emission module and the light detection module An optical pick-up device applied to a portable optical recording device and a manufacturing method thereof formed by ground connection. Background technique [0002] Recently, a digital multimedia environment has developed, personal computers have become popular, data networks are common, and wireless and mobile communication technologies have also been developed. Thus, mobile information communication refers to such things as digital television, digital audio equipment, personal digital assistant (PDA) and videophone are all common, and therefore, greatly increase the information capacity processed and stored in the equipment and minimize Lightweight equipment was ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/125G11B7/12G11B7/123G11B7/13G11B7/131G11B7/135G11B7/1362G11B7/22H01L31/12
CPCG11B7/1362G11B7/1205G11B7/131G11B7/123G11B7/22
Inventor 李泳柱
Owner LG ELECTRONICS INC