JPH0197413U

JPH0197413U -

Info

Publication number: JPH0197413U
Application number: JP19133687U
Authority: JP
Priority date: 1987-12-18
Filing date: 1987-12-18
Publication date: 1989-06-28

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例にかかる光軸調整機
構を示す概略図、第２図は同部分斜視図、第３図
は本考案の他の実施例にかかる偏向プリズムの調
整機構を示す概略図、第４図ａ，ｂは光ピツクア
ツプ装置の光学系の一例を示す概略構成図、第５
図は半導体レーザ素子と対物レンズの光軸のずれ
を例示した概略図、第６図ａ，ｂは光軸調整機構
の従来例を示す概略図である。６，３０…偏向プリズム、６ａ，２３…側面、
２０…支持部材、２１，２２…ネジ止め。 FIG. 1 is a schematic diagram showing an optical axis adjustment mechanism according to an embodiment of the present invention, FIG. 2 is a partial perspective view of the same, and FIG. 3 is a diagram showing a deflection prism adjustment mechanism according to another embodiment of the present invention. Schematic diagram, Figures 4a and 4b are schematic diagrams showing an example of the optical system of the optical pickup device, Figure 5 is a schematic diagram showing an example of the optical system of the optical pickup device.
The figure is a schematic diagram illustrating the misalignment of the optical axis between a semiconductor laser element and an objective lens, and FIGS. 6a and 6b are schematic diagrams illustrating a conventional example of an optical axis adjustment mechanism. 6, 30... Deflection prism, 6a, 23... Side surface,
20... Support member, 21, 22... Screwed.

Claims

[Scope of utility model registration request]

In an optical pickup device, a light source laser beam from a semiconductor laser element disposed on the side surface of the housing is bent in the radial direction of the optical disk by an optical separation means, and in the direction of the optical storage medium by a deflection prism. An optical pickup device characterized in that an adjustment member is provided for positioning and adjusting the prism while guiding it in the radial direction of the optical disk.