JPS6365127U

JPS6365127U -

Info

Publication number: JPS6365127U
Application number: JP15946186U
Authority: JP
Priority date: 1986-10-20
Filing date: 1986-10-20
Publication date: 1988-04-28

Description

[Brief explanation of the drawing]

第１図ａ，ｂは本考案の一実施例にかかる光ピ
ツクアツプのトラツキング機構とフオーカシング
機構の概略構成を例示した平面図および断面図、
第２図は振動吸収部材を板バネに貼り付けた状態
を示す平面図、第３図は振動吸収部材の取付態様
の他の例を示す断面図、第４図は光ピツクアツプ
の一例を示す概略構成図、第５図は対物レンズの
支持態様の一例を示す概略図、第６図は振動の発
生を説明するための概略図、第７図は振動吸収部
材の取付の従来例を示す平面図である。２１，３２，３３…駆動コイル、２２，３４，
３５…ボビン、２３…軸、２４，２５，３０，３
１…板バネ、２７，３６，３７…磁気回路部材、
２６…ハウジング、２８…対物レンズ、２９…レ
ンズホルダ、４０…振動吸収部材。 FIGS. 1a and 1b are a plan view and a sectional view illustrating the schematic configuration of a tracking mechanism and a focusing mechanism of an optical pickup according to an embodiment of the present invention,
Fig. 2 is a plan view showing a vibration absorbing member attached to a leaf spring, Fig. 3 is a sectional view showing another example of how the vibration absorbing member is attached, and Fig. 4 is a schematic diagram showing an example of an optical pickup. 5 is a schematic diagram showing an example of how the objective lens is supported; FIG. 6 is a schematic diagram for explaining the generation of vibration; and FIG. 7 is a plan view showing a conventional example of mounting a vibration absorbing member. It is. 21, 32, 33... Drive coil, 22, 34,
35...Bobbin, 23...Shaft, 24, 25, 30, 3
1... Leaf spring, 27, 36, 37... Magnetic circuit member,
26... Housing, 28... Objective lens, 29... Lens holder, 40... Vibration absorbing member.

Claims

[Scope of utility model registration request]

In an optical pickup equipped with a positioning mechanism for positioning a light beam focused by an objective lens on a recording track formed on an optical storage medium and a focusing mechanism for focusing the light beam, there is provided a method for positioning the focusing mechanism in the focal direction. An optical pickup characterized in that the surfaces of a pair of leaf springs are covered with a vibration absorbing member.