Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Pickup device and optical disk device using the same

A technology for pickups and joints, which is applied in the direction of integrated optical head devices, optical recording/reproduction, instruments, etc., can solve problems such as the difficulty of FPC unit price, and achieve the effect of ensuring electrical characteristics

Inactive Publication Date: 2003-07-09
PANASONIC CORP
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, since the price of OA equipment has been greatly reduced in recent years, the price of optical recording and reading devices and their structural components has also been greatly reduced.
However, in the existing structure, it is very difficult to reduce the unit price of FPC

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
  • Pickup device and optical disk device using the same
  • Pickup device and optical disk device using the same
  • Pickup device and optical disk device using the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0023] Since the optical disc device and pickup unit (PUM portion) in the first embodiment of the present invention are the same as the optical disc device and pickup shown now, the same symbols are used to omit repeated descriptions.

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

A pickup device employing an inexpensive flexible printed circuit sheet (FPC) which demonstrates preferable electrical characteristics. FPC has a signal conductive layer inside, and a U-shape bending portion is formed in a midway of FPC at a position where a hologram unit is connected. An opening is formed on FPC adjacent to an area when the hologram unit is connected, and the length of this opening is longer than the height of the hologram unit.

Description

Technical field [0001] The present invention relates to an optical disc device that reads information from an optical disc medium or records information to an optical disc medium, and particularly relates to a pickup device using a holographic unit. Background technique [0002] In recent years, the thinning, size and weight reduction of portable microcomputers has been rapidly progressing. On the other hand, the storage capacity used by these portable microcomputers has increased significantly, requiring a large-capacity external memory. Using optical recording media such as CD-R / RW, DVD, etc., which is easy to handle with large capacity, it is used in the external storage of portable microcomputers. [0003] As such an external storage optical disc device, it is spreading. Hereinafter, a conventional optical disc device will be described based on the drawings. Figure 8 It is a perspective view of a conventional optical disc device. Picture 9 Yes Figure 8 3D view of the picku...

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 Applications(China)
IPC IPC(8): G11B5/48G11B7/085G11B7/12G11B7/22H05K1/18
CPCG11B7/1205G11B7/22G11B5/486H05K1/189G11B7/08582G11B7/123
Inventor 松村一幸青柳宗伯
Owner PANASONIC CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com