JPS5917042U - optical scanning device - Google Patents

optical scanning device

Info

Publication number
JPS5917042U
JPS5917042U JP10930882U JP10930882U JPS5917042U JP S5917042 U JPS5917042 U JP S5917042U JP 10930882 U JP10930882 U JP 10930882U JP 10930882 U JP10930882 U JP 10930882U JP S5917042 U JPS5917042 U JP S5917042U
Authority
JP
Japan
Prior art keywords
scanning device
optical scanning
magnetic gap
drive coil
light spot
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP10930882U
Other languages
Japanese (ja)
Inventor
渡辺　勝己
伊熊　昭等
Original Assignee
株式会社日立製作所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP10930882U priority Critical patent/JPS5917042U/en
Publication of JPS5917042U publication Critical patent/JPS5917042U/en
Pending legal-status Critical Current

Links

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

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

第１図は、従来方式の駆動部構造の分解斜視図、第２図
は第１図の平面断面図、第３図は同じく振幅の周波数特
性説明図、第４図は本考案の一実施例の磁気回路部の斜
視図、第５図は同じく光学系レンズ支持部の斜視図であ
る。 １：ｖンズ、２：Ｌ／ンズ支持体、３：光学系支持体、
４ａ、　　４ｂ、　　６：磁気ヨーク、５ａ、　　５ｂ
：永久磁石、７：穴、８：フォーカス方向駆動コイル、
９ａ〜９ｂニドラツキング方向駆動コイル、１０ａ〜１
０ｄ：フォーカス板ばね、１１ａ〜ｌｌｄ：）ラッキン
グ板ばね、１２：中間可動部材、１３：フォーカスばね
支持部材、１４ａ、１４ｂ：固定部材、１５：磁気ギャ
ップ、１６：磁性流体、１７：バリヤ被膜、Ａ：従来構
造の周波数特性、Ｂ：本考案による周波数特性。Fig. 1 is an exploded perspective view of the structure of a conventional drive unit, Fig. 2 is a cross-sectional plan view of Fig. 1, Fig. 3 is also an explanatory diagram of amplitude frequency characteristics, and Fig. 4 is an embodiment of the present invention. FIG. 5 is a perspective view of the optical system lens support section. 1: vns, 2: L/ns support, 3: optical system support,
4a, 4b, 6: Magnetic yoke, 5a, 5b
: Permanent magnet, 7: Hole, 8: Focus direction drive coil,
9a-9b Ni racking direction drive coil, 10a-1
0d: Focus leaf spring, 11a to lld:) Racking leaf spring, 12: Intermediate movable member, 13: Focus spring support member, 14a, 14b: Fixed member, 15: Magnetic gap, 16: Magnetic fluid, 17: Barrier film, A: Frequency characteristics of conventional structure, B: Frequency characteristics according to the present invention.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 所定の情報トラックを光学的に走査する光スポットを光
軸方向に動作すると共に、その先軸と垂゛直な方向に動
作可能な手段を具え、上記情報トラックをトラッキング
するトラッキング走査方向に平行な磁気ギャップを設け
、この磁気ギャップにフォーカス方向駆動コイルとトラ
ッキング駆動コイルが位置するものにおいて、磁気ギャ
ップ内に磁性流体を挿入することを特徴とする光学走査
装置。A light spot that optically scans a predetermined information track is moved in the direction of the optical axis, and a means that is movable in a direction perpendicular to the leading axis of the light spot is provided. 1. An optical scanning device, wherein a magnetic gap is provided, a focus direction drive coil and a tracking drive coil are located in the magnetic gap, and a magnetic fluid is inserted into the magnetic gap.
JP10930882U 1982-07-21 1982-07-21 optical scanning device Pending JPS5917042U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10930882U JPS5917042U (en) 1982-07-21 1982-07-21 optical scanning device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10930882U JPS5917042U (en) 1982-07-21 1982-07-21 optical scanning device

Publications (1)

Publication Number Publication Date
JPS5917042U true JPS5917042U (en) 1984-02-01

Family

ID=30254679

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10930882U Pending JPS5917042U (en) 1982-07-21 1982-07-21 optical scanning device

Country Status (1)

Country Link
JP (1) JPS5917042U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850930A (en) * 1982-01-06 1983-03-25 株式会社日立製作所 Electric cleaner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5850930A (en) * 1982-01-06 1983-03-25 株式会社日立製作所 Electric cleaner

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