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Optical pickup device and assembling method thereof

A technology for an optical pickup device and a case, which is applied in the manufacture of optical heads, optical recording heads, and configuration/installation of heads, can solve problems such as affecting positioning, attaching garbage, and rising manufacturing costs, and achieves improved operability and control. easy effect

Inactive Publication Date: 2009-06-24
KONICA MINOLTA OPTO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Because the flexible substrate has its own elasticity, this elasticity will drive the semiconductor laser in an undesired direction, which may affect the positioning. Especially now that the miniaturization of the optical pickup device is being promoted, the semiconductor laser frame itself also tends to be miniaturized. When assembling the device, the operator must use tweezers, etc., and assemble it to the jig for position adjustment while fine-tuning the frame
When the semiconductor laser is mounted on the optical pickup device in an unstable state where the semiconductor laser is suspended by the flexible substrate, time is wasted and there is a problem that the manufacturing cost increases
In addition, during the assembly operation, the important optical parts of the semiconductor laser in the state of being suspended by the flexible substrate may be damaged or attached to the garbage.

Method used

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  • Optical pickup device and assembling method thereof
  • Optical pickup device and assembling method thereof
  • Optical pickup device and assembling method thereof

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Experimental program
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no. 1 Embodiment approach

[0088] figure 1 It is a schematic cross-sectional schematic diagram of the optical pickup device according to the first embodiment, and shows a state at the time of assembly. figure 2 yes figure 1 The structure of is truncated by the plane containing the line II-II, and the cross-sectional view seen in the direction of the arrow. The optical pickup device of this embodiment can reproduce information from three types of optical discs, HD DVD, DVD, and CD, and can record information by generating a tracking beam by adding a diffraction grating or the like. And it is sufficient that information recording / reproduction can be performed on at least one type of optical disc among them.

[0089] figure 1 Among them, on the shell 1, as will be described later, the first semiconductor laser 5,2 laser 1 plug-in 15 is positioned and fixed, and the collimating lens 3, the mirror 4, the blue-violet polarizing beam splitter 6, the power Monitor 7, polarized beam splitter 11, servo lens ...

no. 2 Embodiment approach

[0123] Next, the state of the optical pickup device in the second embodiment will be described. The schematic structure of the optical pickup device and the main part of the operation of the optical pickup device are the same as those of the first embodiment, but the second embodiment differs from the first embodiment in the structure of the hook portion formed on the frame 20 and the case 1.

[0124] Figure 14 It is a perspective view of a frame 220 with 2 lasers and 1 plug-in 215 semiconductor lasers (the front side is the light-emitting surface). Figure 15 , 16 It is a three-dimensional schematic diagram of the housing 201 and the 2 laser 1 plug-in 215 during adjustment. Figure 17 yes Figure 15 Shown is a side view of the housing 201 and the 2 laser 1 insert 215, Figure 18 yes Figure 16 A side view of the housing 201 and 2 laser 1 insert 215 is shown. Figure 19 (a) is Figure 17 A part of the frame 220 and the shell 201 is cut off by the XIXA-XIXA line, and th...

no. 3 Embodiment approach

[0139] Next, the state of the optical pickup device in the third embodiment will be described. The schematic structure of the optical pickup device and the main part of the operation of the optical pickup device are the same as those of the first embodiment, but the third embodiment differs from the first embodiment in the structure of the hook portion formed on the frame 20 and the case 1 . Specifically, in the first embodiment, the hooking portions 21a, 21a protrude from the case 101 toward the direction of the 2-laser 1 insert 15, while in the third embodiment, the fastening portion 320c formed on the frame 320 faces toward the case. 301 direction is prominent.

[0140] Figure 21 It is a perspective view of a frame 320 with 2 lasers and 1 plug-in 315 semiconductor lasers (the front side is the light emitting surface). Figure 22 , 23 It is a three-dimensional schematic diagram of the housing 301 and the 2 laser 1 plug-in 315 during adjustment.

[0141] refer to Figur...

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Abstract

The invention discloses a light pick-up device and an assembling method of the light pick-up device. The light pick-up device has simple structure and can high precision and easily position an element. The light pick-up device of the invention comprises a casing, a hook part formed on the casing, and an element part with elements connected by a flexible substrate relative to the casing, wherein the element part is hooked to the hook part under a state propelled by the flexible substrate.

Description

technical field [0001] The present invention relates to an optical pickup device and its assembly method, and more particularly to an optical pickup device capable of recording and / or reproducing information on an optical disk and its assembly method. Background technique [0002] Optical pickup devices capable of recording and / or reproducing information on optical discs typified by CDs and DVDs have been developed. In addition, the development of an optical pickup device capable of recording and / or reproducing information on high-density optical discs such as Blu-ray Disc and HD DVD using a blue-violet semiconductor laser with a wavelength of about 400 nm is rapidly progressing. [0003] In the optical pickup device, for example, the position of the semiconductor laser relative to the optical system including the objective lens must be positioned with high precision. When performing the above positioning, the laser beam is actually irradiated, and the X-axis, Y-axis, Z-axis...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B7/08G11B7/22
Inventor 岩下淳夫藤原胜巳
Owner KONICA MINOLTA OPTO