Pickup device and optical disk device using the same

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...

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

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