JPH0255410U

JPH0255410U -

Info

Publication number: JPH0255410U
Application number: JP13179788U
Authority: JP
Priority date: 1988-10-11
Filing date: 1988-10-11
Publication date: 1990-04-20
Anticipated expiration: 2003-10-11
Also published as: JPH0624009Y2

Description

[Brief explanation of drawings]

第１図乃至第６図はこの考案の一実施例を示し
、第１図は光ピツクアツプの光学部品取付調整機
構の分解斜視図、第２図は断面図、第３図は調整
用ドライバを挿入した状態を示す断面図、第４図
は調整用ドライバを挿入するための挿入孔と長孔
との位置関係を示す平面図、第５図Ａ〜Ｃは調整
時における調整用ドライバの溝と取付ネジの頭部
との位置関係を示す概略図、第６図は他の構成例
を示す断面図である。第７図乃至第１０図は従来
の光ピツクアツプの光学部品取付調整機構を示し
、第７図は断面図、第８図はホルダの斜視図、第
９図は偏心ドライバの斜視図、第１０図は光ピツ
クアツプの要部の平面図である。１：光ピツクアツプ、１ａ：取付孔、１ｂ：長
孔、１ｃ：挿入孔、１ｄ：隔壁部、２：ホルダ、
２ａ：光学部品、２ｂ：透光孔、２ｃ：ネジ孔、
３：取付ネジ、４：調整用ドライバ、４ａ：溝、
５：バネ手段。 Figures 1 to 6 show an embodiment of this invention, with Figure 1 being an exploded perspective view of the optical component mounting and adjusting mechanism of the optical pickup, Figure 2 being a cross-sectional view, and Figure 3 showing the insertion of an adjustment driver. Figure 4 is a plan view showing the positional relationship between the insertion hole and the long hole for inserting the adjustment driver, and Figures 5A to C are the grooves and installation of the adjustment driver during adjustment. A schematic view showing the positional relationship with the head of the screw, and FIG. 6 is a sectional view showing another example of the configuration. 7 to 10 show the optical component attachment and adjustment mechanism of a conventional optical pickup, in which FIG. 7 is a sectional view, FIG. 8 is a perspective view of the holder, FIG. 9 is a perspective view of the eccentric driver, and FIG. 1 is a plan view of the main parts of the optical pickup. 1: Optical pickup, 1a: Mounting hole, 1b: Long hole, 1c: Insertion hole, 1d: Partition wall, 2: Holder,
2a: optical component, 2b: transparent hole, 2c: screw hole,
3: Mounting screw, 4: Adjustment driver, 4a: Groove,
5: Spring means.

Claims

[Scope of Claim for Utility Model Registration] When attaching an optical component to the holder and fixing the holder inserted into the mounting hole formed in the pick-up body with a mounting screw, inserting an adjustment screwdriver through the insertion hole formed in the pick-up body. In the optical component mounting adjustment mechanism of the optical pickup, which allows the holder to be moved and adjusted in the optical axis direction, a screw hole for the mounting screw formed on the side surface of the holder, and a connection between the mounting hole and the insertion hole are provided. a partition provided between the partition wall, an elongated hole formed in the partition wall for the insertion of the mounting screw so that the mounting screw can be moved in the optical axis direction, and the mounting screw and the partition wall. The adjustment includes a spring means interposed between the two and a groove into which the head of the mounting screw loosely fits, and the mounting screw is forcibly moved in the direction of the optical axis by rotating it while inserted through the insertion hole. An optical component mounting adjustment mechanism comprising: a screwdriver;