JPS63168622U

JPS63168622U -

Info

Publication number: JPS63168622U
Application number: JP6096487U
Authority: JP
Priority date: 1987-04-22
Filing date: 1987-04-22
Publication date: 1988-11-02

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図はこの考案の一実施例に係る光学的情報
処理装置の対物レンズ駆動装置を示す平面図、第
２図は第１図のＡ―Ａ′線に沿つて切断し矢印方
向に見た断面図、第３図ａ，ｂはこの考案の対物
レンズ駆動装置で使用するピンを示す平面図と正
面図、第４図ａ，ｂはこの考案におけるピンの変
形例を示す平面図と正面図、第５図は従来の光学
的情報処理装置の対物レンズ駆動装置を示す平面
図、第６図は第５図のＢ―Ｂ′線に沿つて切断し
矢印方向に見た断面図、第７図は従来の光学的情
報処理装置の対物レンズ駆動装置を示す斜視図、
第８図は従来の対物レンズ駆動装置における問題
点を示す平面図、第９図は第８図の問題点の説明
図、第１０図はこの考案の対物レンズ駆動装置に
おける効果を示す説明図である。１，６…第２のピン、３…第１の取付孔、４…
第２の取付孔、１２…可動体、１３…対物レンズ
、１４…支持部材、１９…第１のピン。 Fig. 1 is a plan view showing an objective lens driving device of an optical information processing device according to an embodiment of this invention, and Fig. 2 is a plan view taken along line A-A' in Fig. 1 and viewed in the direction of the arrow. 3A and 3B are a plan view and a front view showing a pin used in the objective lens driving device of this invention, and FIGS. 4A and 4B are a plan view and a front view showing a modified example of the pin in this invention. , FIG. 5 is a plan view showing an objective lens driving device of a conventional optical information processing device, FIG. 6 is a cross-sectional view taken along line BB' in FIG. 5 and viewed in the direction of the arrow, and FIG. The figure is a perspective view showing an objective lens drive device of a conventional optical information processing device.
FIG. 8 is a plan view showing the problems in the conventional objective lens driving device, FIG. 9 is an explanatory diagram of the problems in FIG. 8, and FIG. 10 is an explanatory diagram showing the effects of the objective lens driving device of this invention. be. 1, 6...Second pin, 3...First mounting hole, 4...
2nd attachment hole, 12... Movable body, 13... Objective lens, 14 ... Support member, 19... First pin.

Claims

【実用新案登録請求の範囲】 (1) 複数のコイルと少なくとも１つのレンズを
含む光学系とを備えた可動体と、この可動体を支
持する支持部材と、この支持部材をベースに固定
するピンとを有し、対応する電気信号を上記コイ
ルに供給して、上記レンズを情報記録媒体の半径
方向及び垂直方向の２方向に駆動させる光学的情
報処理装置の対物レンズ駆動装置において、上記ピンは、上記ベースに固着され上記支持部
材に設けた第１の取付孔に嵌合される第１のピン
と、上記ベースに回転可能に固定され、且つこの回
転に応じて上記支持部材の上記ベースに対する固
定角度が可変するような形状にして、上記支持部
材に設けた第２の取付孔に嵌合される第２のピン
と、からなることを特徴とする光学的情報処理装置の
対物レンズ駆動装置。 (2) 上記第２のピンは、上記第２の取付孔に嵌
合される部分と上記ベースに固定される部分とは
軸心が異なつていることを特徴とする実用新案登
録請求の範囲第１項記載の光学的情報処理装置の
対物レンズ駆動装置。 (3) 上記第２のピンの断面形状のうち、上記第
２の取付孔に嵌合される部分は非円形であること
を特徴とする実用新案登録請求の範囲第１項記載
の光学的情報処理装置の対物レンズ駆動装置。 (4) 上記第２のピンが嵌合される上記第２の取
付孔は長孔であることを特徴とする実用新案登録
請求の範囲第１項記載の光学的情報処理装置の対
物レンズ駆動装置。[Claims for Utility Model Registration] (1) A movable body including a plurality of coils and an optical system including at least one lens, a support member that supports this movable body, and a pin that fixes this support member to a base. In an objective lens drive device for an optical information processing device, the objective lens driving device for an optical information processing device supplies a corresponding electric signal to the coil to drive the lens in two directions, a radial direction and a perpendicular direction of the information recording medium, a first pin fixed to the base and fitted into a first mounting hole provided in the support member; a first pin rotatably fixed to the base, and a fixed angle of the support member relative to the base according to the rotation; an objective lens drive device for an optical information processing device, comprising: a second pin having a shape such that the angle is variable and being fitted into a second attachment hole provided in the support member; (2) The second pin is characterized in that the part fitted into the second mounting hole and the part fixed to the base have different axes. An objective lens drive device for the optical information processing device according to item 1. (3) Optical information according to claim 1 of the utility model registration claim, characterized in that, of the cross-sectional shape of the second pin, the portion that is fitted into the second mounting hole is non-circular. Objective lens drive device for processing equipment. (4) An objective lens drive device for an optical information processing device according to claim 1 of the utility model registration claim, wherein the second mounting hole into which the second pin is fitted is a long hole. .