Unlock instant, AI-driven research and patent intelligence for your innovation.

Optical head device

An optical head and laser technology, applied in beam guides, optical recording heads, head configuration/installation, etc., can solve problems such as sufficient heat dissipation measures, and achieve the effect of improving impact resistance and ensuring bonding strength

Inactive Publication Date: 2008-02-13
SANKYO SEIKI MFG CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, even if the structure of the optical head device disclosed in the above-mentioned Patent Document 3 is adopted, it cannot be said that the heat dissipation measures are sufficient, and more effective heat dissipation measures are required.

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
  • Optical head device
  • Optical head device
  • Optical head device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] Hereinafter, the best mode for carrying out the present invention will be described with reference to the drawings.

[0028] (Schematic structure of optical head device)

[0029] FIG. 1 is a schematic configuration diagram schematically showing a schematic configuration of an optical head device according to an embodiment of the present invention. Fig. 2 is a perspective view of the optical head device shown in Fig. 1 viewed from the upper side. Fig. 3 is a perspective view of the optical head device shown in Fig. 1 viewed from the bottom side. 4 is a perspective view showing a state in which an optical element is mounted on a metal frame of the optical head device shown in FIG. 1 viewed from the bottom side.

[0030]The optical head device 1 of this form is the device that carries out information recording and information reproduction to the optical disc 2 such as CD or DVD, has: the 1st and the 2nd laser light-emitting element 31,32 as the light source that emits la...

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

The invention provides an optical head device (1) which is provided with a first lasing luminous element and a second lasing luminous element (31 and 32), a photic element (7), an optical system which guides the outgoing light of the first lasing luminous element and the second lasing luminous element (31 and 32) to a CD (2) and guides the reflected light from the CD (2) to the photic element (7) and a body frame (6), wherein, the body frame (6) consists of a first frame (61) made of resin and a second frame (62) made of metal, the second frame (62) is fixed on the surface (61a) of the first frame (61)opposite to the CD (2); the back surface (62b) of the second frame (62) is stuck with specified optical elements forming the optical system, the first lasing luminous element and the second lasing luminous element (31 and 32) and the photic element (7). Therefore, the invention provides the optical head device with a structure which guarantees the shock resistance and can yield the heat generated by the lasing luminous elements more effectively.

Description

technical field [0001] The present invention relates to an optical head device for recording and reproducing optical discs such as CDs and DVDs. In more detail, it relates to the structure of the body frame of the optical head device. Background technique [0002] An optical head device for recording and reproducing optical discs such as CDs and DVDs has: a laser light emitting element that emits laser light to the optical disc, a light receiving element that receives reflected light from the optical disc, and guides the emitted light from the laser light emitting element to the optical disc. An optical system and the like for guiding reflected light from the optical disc to a light receiving element are mounted on a main body frame. Metal body frames and resin body frames are used as body frames, but inexpensive resin body frames are widely used in order to reduce component costs. [0003] In recent years, as the recording density of optical disks has increased and the re...

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 Patents(China)
IPC IPC(8): G11B7/12G11B7/135G02B7/00
CPCG11B7/1376G11B7/08
Inventor 和出达贵
Owner SANKYO SEIKI MFG CO LTD