JPS59194126U

JPS59194126U - Optical recording/playback device

Info

Publication number: JPS59194126U
Application number: JP9033983U
Authority: JP
Inventors: 丸田　啓二; 潤一鈴木; 三輪　弘光
Original assignee: ソニー株式会社
Priority date: 1983-06-13
Filing date: 1983-06-13
Publication date: 1984-12-24
Also published as: JPS647468Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図乃至第４図は従来例を説明するための図面であっ
て、第１図は分解斜視図、第２図は斜視図、第３図は断
面図、第４図は対物レンズ駆動部材の移動と、光ディス
クおよびスピンドルモータとの関係を示す平面図、第５
図乃至第１０図は本考案にかかる光学記録／再生装置の
一実施例を説明するための図面であって、第５図は分解
斜視図、第６図は斜視図、第７図は平面図、第８図は第
７図における■−■線縦線面断面図９図は第７図におけ
るＩＸ−ＩＸ線縦断面図、第１０図は対物レンズ駆動部
材および光学系部材の移動等と、光ディスクおよびスピ
ンドルモータとの関係を示す断面図、第１０図は第１変
形例の平面図、第１１図は第２変形例の平面図である。なお図面に用いられた符号において、２２・・曲支持軸
、２８・・・・・・対物レンズ保持体、３１・・四対物
レンズ、３３Ａ、３３Ｂ・・曲フォーカスフ・イル、３
４Ａ、３４Ｂ・・・・・・トラッキングコイル、Ａ・・
四対物レンズ駆動部材、Ｂ・・・・・・光学系部材、で
ある。第１図ｉｌ　　　１1 to 4 are drawings for explaining a conventional example, in which FIG. 1 is an exploded perspective view, FIG. 2 is a perspective view, FIG. 3 is a sectional view, and FIG. 4 is an objective lens drive member. 5 is a plan view showing the movement of the optical disk and the relationship between the optical disk and the spindle motor;
10 to 10 are drawings for explaining an embodiment of the optical recording/reproducing device according to the present invention, in which FIG. 5 is an exploded perspective view, FIG. 6 is a perspective view, and FIG. 7 is a plan view. , FIG. 8 is a cross-sectional view taken along the line ■-■ in FIG. 7, FIG. 9 is a vertical cross-sectional view taken along the line IX-IX in FIG. 7, and FIG. 10 shows the movement of the objective lens drive member and optical system members, etc. 10 is a plan view of the first modification, and FIG. 11 is a plan view of the second modification. In addition, in the symbols used in the drawings, 22...Curved support shaft, 28...Objective lens holder, 31...Four objective lenses, 33A, 33B...Curved focus file, 3
4A, 34B...Tracking coil, A...
4 objective lens driving members, B...optical system member. Figure 1 il 1

Claims

[Claims for Utility Model Registration] (a) An objective lens holder supported by a support shaft so as to be rotatable around the axis of the support shaft and slidable in the axial direction of the support shaft, and this objective lens. (b) an objective lens drive member having an objective lens held in a position spaced apart from the axis of the support shaft of the holder so that the optical axis is S parallel to the axis of the support shaft; and (b) the objective lens drive member. In an optical recording/reproducing device, the objective lens holder is formed into a rectangular shape. and the objective lens is positioned on the longitudinal side of the rectangular shape with respect to the support shaft, and at least one focus coil is arranged along the longitudinal direction of the objective lens holder. An optical recording/reproducing apparatus characterized in that at least one tracking coil is arranged along the width direction of the optical recording/reproducing apparatus.