JPS63316324A - Driving device for optical system - Google Patents

Driving device for optical system

Info

Publication number
JPS63316324A
JPS63316324A JP15031887A JP15031887A JPS63316324A JP S63316324 A JPS63316324 A JP S63316324A JP 15031887 A JP15031887 A JP 15031887A JP 15031887 A JP15031887 A JP 15031887A JP S63316324 A JPS63316324 A JP S63316324A
Authority
JP
Japan
Prior art keywords
holding member
optical system
neutral point
coil
circuit board
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
JP15031887A
Other languages
Japanese (ja)
Inventor
Toru Tatsuno
徹 辰野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP15031887A priority Critical patent/JPS63316324A/en
Publication of JPS63316324A publication Critical patent/JPS63316324A/en
Pending legal-status Critical Current

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  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To prevent deterioration in a servo characteristic by using a printed circuit board to constitute a neutral point holding member having flexibility and using the circuit board as the lead wires of coils fixed to an optical system holding body. CONSTITUTION:The neutral point holding member 35 consists of the printed circuit board having an S-shaped section. Flexibility is provided to this circuit board by forming the same of polyester or polyimide as the main material. Plural pieces of conductor wires 40 are included within the circuit board of this neutral point holding member 35, and the terminals 41 thereof are connected to the terminal parts of the coil 25 for focusing and the coil 26 for tracking. The connection can be easily executed by soldering, etc. A pattern 42 for connector connection to this circuit board is provided to the end part of the member 35 on the side opposite the terminals 41 thereof. The member 35 is used as the means for connecting the coil 25 and the coil 26 in such a manner, by which the need for lead wires by stranded wires is eliminated.

Description

【発明の詳細な説明】 (産業上の利用分野) 本発明は1例えば光ヘツド装置等に用いられる光学系駆
動装置に関する。
DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an optical system drive device used in, for example, an optical head device.

(従来の技術) 従来、光ディスク等の情報記録担体く情報を記録したシ
、記録された情報を再生するKは、光源から射出された
光ビームを径1μm程度の微少スポラ)K絞シ込み情報
記録担体の記録面上に照射する情報記録再生装置を用い
ることが多い、このような記録再生装置には、通常、情
報記録担体の面振れ等忙起因する合焦ずれを補正するた
めのフォーカシング制御や情報記録担体の偏心等に起因
する光ビームスポットの位置ずれを補正するためのトッ
プキング制御を行なう丸めの駆動装置が設けられている
(Prior art) Conventionally, when information is recorded on an information recording carrier such as an optical disk, a light beam emitted from a light source is used to reproduce the recorded information using a microspora (with a diameter of about 1 μm). Such recording and reproducing devices, which often use information recording and reproducing devices that emit light onto the recording surface of a record carrier, usually include focusing control to correct out-of-focus caused by surface wobbling of the information recording carrier. A round drive device is provided that performs top king control to correct positional deviation of the light beam spot due to eccentricity of the information recording carrier or the like.

以下、第5図に従来の光学系駆動装置の組立斜視図を示
し説明する。同図に示すように、対物レンズ保持体6は
軸受4を介して基台13に圧入等によシ固着された支持
軸16に挿入されている。
FIG. 5 shows an assembled perspective view of a conventional optical system driving device and will be described below. As shown in the figure, the objective lens holder 6 is inserted through a bearing 4 into a support shaft 16 that is fixed to a base 13 by press fitting or the like.

この対物レンズ保持体6の一端には対物レンズ2が取9
付けられ、他端には該対物レンズ2と略同等の重さのバ
ランス用ウェイト5が固着されて贋る。さらに、このウ
ェイト5の下方には中立点保持部材14が設けられてお
シ、該保持部材14とウェイト5とはシリコンゴム等か
ら成る弾性部材17により連結され、対物レンズ保持体
6が支持軸16に対して弾性部材17の弾性範囲内で回
動又は上下動し得るようにされている。対物レンズ保持
体6の外周部にはフォーカス用コイル7が巻回されてお
り、さらにこのフォーカス用コイル7上にはトラッキン
グ用コイル8が付設されている。
The objective lens 2 is attached to one end of the objective lens holder 6.
A balance weight 5 having approximately the same weight as the objective lens 2 is fixed to the other end. Furthermore, a neutral point holding member 14 is provided below the weight 5, and the holding member 14 and the weight 5 are connected by an elastic member 17 made of silicone rubber or the like, and the objective lens holder 6 is attached to the support shaft. 16, it can be rotated or moved up and down within the elastic range of the elastic member 17. A focusing coil 7 is wound around the outer periphery of the objective lens holder 6, and a tracking coil 8 is attached on top of this focusing coil 7.

そして、フォーカス用コイル7及びトラッキング用コイ
ル8に対向するように対物レンズ保持体6の外周部の近
傍に永久磁石9m、9bが設けられ、これら永久磁石9
m、9bは基台12に固着された内ヨーク部10m、1
0bと外ヨーク部11畠。
Permanent magnets 9m and 9b are provided near the outer periphery of the objective lens holder 6 so as to face the focusing coil 7 and the tracking coil 8.
m, 9b is an inner yoke portion 10m, 1 fixed to the base 12;
0b and outer yoke part 11.

12bとに取シ付けられている。基台12は磁性体によ
シ形成されており、該基台12と内外ヨーク部10息、
10 b −11a * 1 l bとは全体としてヨ
ーク13を形成している。従って、内ヨーク部10 a
 e 10 bと外ヨーク部11a 、llbとの空隙
部には磁界が形成されている。しかして、対物レンズ保
持体6のフォーカス用コイル7或^はトラッキング用コ
イル8に電流を流すことによフ電磁力が発生し、対物レ
ンズ保持体6は支持軸16を中心に上下方向に摺動し、
或いは左右方向に回転することができる。この際、上記
中立点保持部材14は対物レンズ保持体6(I−中立位
置に復帰するよう作用する。
12b. The base 12 is formed of a magnetic material, and the base 12 and the inner and outer yoke parts 10,
10 b −11 a * 1 l b collectively form a yoke 13. Therefore, the inner yoke portion 10a
A magnetic field is formed in the gap between e 10 b and the outer yoke portions 11a and llb. As a result, the focusing coil 7 or ^ of the objective lens holder 6 generates an electromagnetic force by passing a current through the tracking coil 8, and the objective lens holder 6 slides vertically around the support shaft 16. move,
Alternatively, it can be rotated left and right. At this time, the neutral point holding member 14 acts to return the objective lens holder 6 (I-neutral position).

(発明が解決しようとする問題点) ところで、上記中立点保持部材14は支持体14畠と弾
性体14bとから構成され、弾性体14bは腕部14a
 、14dを有している。このような中立点保持部材1
4の下端が基台12に固定され、上端が対物レンズ保持
体6に設けられたウェイト5の下端部に固定されており
、対物レンズ保持体6は上記駆動力により中立点保持部
材14の腕部14c、14dの弾性力に抗して左右y方
向に回動し、又X方向に上下動する。又、対物レンズ保
持体6に駆動力が働かない場合は、上記腕部14c、1
4dの引張力によシ、該保持体6は元の中立位置く復帰
することができる。
(Problems to be Solved by the Invention) By the way, the neutral point holding member 14 is composed of a support body 14 and an elastic body 14b, and the elastic body 14b is connected to the arm portion 14a.
, 14d. Such a neutral point holding member 1
The lower end of the weight 4 is fixed to the base 12, and the upper end is fixed to the lower end of the weight 5 provided on the objective lens holder 6. It rotates in the left and right Y directions against the elastic force of the parts 14c and 14d, and also moves up and down in the X direction. In addition, when the driving force does not act on the objective lens holder 6, the arm portions 14c, 1
A tensile force of 4d allows the holder 6 to return to its original neutral position.

このような中立点保持部材においては、対物レンズ保持
体6が左右y方向に回動し、X方向に上下動した隙、同
時1/Cx及びy方向に垂直な篤方向にも引張力が生じ
、その結果、支持軸16に対して軸受部4の内径面が強
く圧せられ、対彎レンズ保持体6が正規の状態から傾い
てしまう。従って、対物レンズ保持体6は滑らかに摺回
動することができず、サーが特性が劣化するという問題
が生じる。
In such a neutral point holding member, the objective lens holder 6 rotates in the left and right y directions, and tensile force is also generated in the vertical direction perpendicular to the 1/Cx and y directions during the vertical movement in the X direction. As a result, the inner diameter surface of the bearing portion 4 is strongly pressed against the support shaft 16, and the anti-curvature lens holder 6 is tilted from its normal state. Therefore, the objective lens holder 6 cannot slide and rotate smoothly, resulting in a problem that the sensor characteristics deteriorate.

これは、中立点保持部材14の腕部14o。This is the arm portion 14o of the neutral point holding member 14.

14dが比較的短い場合著しい、又、該腕部14C91
4dを比較的長くした場合、この中立点保持部材14は
対物レンズ保持体6の内部に収納されているものである
から、該対物レンズ保持体6を大きくする必要が生じる
。これは、装置の大型化につながり望ましくない。又、
中立点保持部材14を対物レンズ保持体6の外側に設け
た場合、やはり装置は大型化し望しくない。
It is noticeable when 14d is relatively short, and the arm portion 14C91
If 4d is made relatively long, since the neutral point holding member 14 is housed inside the objective lens holder 6, it becomes necessary to make the objective lens holder 6 larger. This is undesirable as it leads to an increase in the size of the device. or,
If the neutral point holding member 14 is provided outside the objective lens holder 6, the device will become larger, which is not desirable.

又、従来の光学系駆動装置においては、フォーカス用コ
イル7のためのリード線17、及びトラッキング用コイ
ル8のためのリード線18をより線で作り、基体12側
に導くようにしていたが、このリード線17.18のよ
りの状態や曲げ状態によって該リード線の剛性が一定と
ならず、これにより対物レンズ保持体6の滑らかな摺回
動が妨げられ、サー?特性が劣化すると論う問題が生じ
る。
Further, in the conventional optical system drive device, the lead wire 17 for the focusing coil 7 and the lead wire 18 for the tracking coil 8 are made of twisted wires and guided to the base 12 side. The rigidity of the lead wires 17, 18 is not constant depending on the twisted or bent state of the wires, and this prevents the objective lens holder 6 from smoothly sliding and rotating. A problem arises when the characteristics deteriorate.

(問題点を解決するための手段) 上述のような問題点を解決するために、本発明の光学系
駆動装置は、基台に対して少なくとも1方向に移動可能
に支持された光学系保持体と、この光学系保持体に固着
されたコイルと、このコイルを横切る磁界を発生する手
段とを有し、一端が前記基台に固定され、他端が前記光
学系保持体に固定されてこの光学系保持体を中立位置に
保持する中立点保持部材が設けられた光学系駆動装置に
おいて、前記中立点保持部材が可撓性を有するプリント
基板よ構成ることを特徴とする特(作用) 上述した本発明の構成においては、可焼性を有する中立
点保持部材がプリント基板によシ構成され、これを光学
系保持体に固着されたコイルのリード線として使用する
ことができる。
(Means for Solving the Problems) In order to solve the above problems, the optical system drive device of the present invention includes an optical system holder supported movably in at least one direction with respect to a base. , a coil fixed to the optical system holder, and means for generating a magnetic field across the coil, one end fixed to the base and the other end fixed to the optical system holder. An optical system driving device provided with a neutral point holding member that holds an optical system holder at a neutral position, characterized in that the neutral point holding member is constituted by a flexible printed circuit board. In the configuration of the present invention, the flammable neutral point holding member is constructed of a printed circuit board, and this can be used as a lead wire of a coil fixed to the optical system holder.

又、この中立点保持部材を断面S字状に形成すると、こ
の保持部材の有効長が長くなり、光学系保持部材の摺回
動時において、該保持部材に無理な力がかかりにくくな
る。
Further, if the neutral point holding member is formed to have an S-shaped cross section, the effective length of the holding member becomes long, and it becomes difficult to apply undue force to the holding member when the optical system holding member slides and rotates.

この中立点保持部材の可焼性は、ポリエステル。The flammability of this neutral point holding member is polyester.

ポリイミド等を主成分として形成された基板により実現
される。
This is realized by a substrate formed mainly of polyimide or the like.

(実施例) 以下1本発明の実施例について図面を参照しながら説明
する。
(Example) An example of the present invention will be described below with reference to the drawings.

第1図は1本発明による光学系駆動装置の組立斜視図で
あシ、82図は第1図に示す装置の組立後の部分斜視図
であシ、第3囚及び第4図は本発明による中立点保持部
材の他の実施例を示す斜視図である。
1 is an assembled perspective view of an optical system driving device according to the present invention, FIG. 82 is a partial perspective view of the device shown in FIG. 1 after assembly, and FIGS. It is a perspective view which shows another Example of the neutral point holding member by.

これらの図において、対物レンズ保持体21は軸受23
を介して、基台32に圧入等によシ固着された支持軸3
4に摺動及び回動可能に挿入されている。この対物レン
ズ保持体21の一端には対物レンズ20が鏡筒部22を
介して取シ付けられておシ、又他端には骸対物レンズ2
0と略同等の重さを有するバランス用ウェイト24が固
設されている。さらに、該ウェイト24の下方には中立
点保持部材35(後で詳述する)が設けられている。
In these figures, the objective lens holder 21 is attached to a bearing 23.
The support shaft 3 is fixed to the base 32 by press-fitting or the like through the support shaft 3.
4 so as to be slidable and rotatable. An objective lens 20 is attached to one end of this objective lens holder 21 via a lens barrel section 22, and a skeleton objective lens 2 is attached to the other end.
A balance weight 24 having a weight substantially equal to 0 is fixedly provided. Further, a neutral point holding member 35 (described in detail later) is provided below the weight 24.

対物レンズ保持体21の外周にはフォーカス用コイル2
5が巻回されておシ、さらにこのフォーカス用コイル2
5の下方には矩形又は楕円形に巻回したトラッキング用
コイル26が付設されている。
A focusing coil 2 is provided on the outer periphery of the objective lens holder 21.
5 is wound, and this focusing coil 2 is also wound.
A tracking coil 26 wound in a rectangular or elliptical shape is attached below the coil 5 .

基台32には、上記対物レンズ保持体21の外周に対し
て一様に近接するよう形成された2個の弧状のフォーカ
ス用永久磁石28m、28bと。
The base 32 includes two arc-shaped focusing permanent magnets 28m and 28b formed so as to be uniformly close to the outer periphery of the objective lens holder 21.

該フォーカス用永久磁石28 a # 28 bの夫々
の下方に付設された弧状のトラッキング用永久磁石29
m、29bと、これら永久磁石28 m、28b。
Arc-shaped tracking permanent magnets 29 attached below each of the focusing permanent magnets 28a and 28b.
m, 29b, and these permanent magnets 28 m, 28b.

29m、29bの夫々の組み合せを内側面に固設する外
ヨーク部31m、31bと、少なくとも外周が弧状に形
成され外ヨーク部3 i a * 3 l bの夫々に
対して一定の間隙を有する内ヨーク部30a。
The outer yoke parts 31m and 31b have the respective combinations of 29m and 29b fixed on the inner surface, and the inner part has at least an arcuate outer periphery and has a constant gap with respect to each of the outer yoke parts 3ia * 3lb. Yoke part 30a.

30bが設けられていて、全体が一体成形されたヨーク
33とされている。このように構成されたヨーク33の
永久磁石28&、28bと内ヨーク部30 a s 3
0 bとの夫々の間隙には、上記対物レンズ保持体21
の外周部が支持軸34を中心に摺回動自在に挿着されて
いる。従って、上記ヨーク33においては、永久磁石2
8m、29mと内ヨーク30a間、及び永久磁石28b
、29bと内ヨーク30bfSJ1に一磁界が発生し、
対物レンズ保持体21のフォーカス用コイ#25或いハ
トラッキング用コイル26に電流を流すことによ)、該
対物レンズ保持体21は支持軸34を中心に上下動或い
は左右に回動することができる。かくして。
30b, and the entire yoke 33 is integrally molded. The permanent magnets 28&, 28b of the yoke 33 configured in this way and the inner yoke portion 30a s 3
The objective lens holder 21 is placed in each gap between the objective lens holder 21 and the
The outer periphery of the support shaft 34 is slidably and rotatably inserted around the support shaft 34. Therefore, in the yoke 33, the permanent magnet 2
Between 8m, 29m and inner yoke 30a, and permanent magnet 28b
, 29b and the inner yoke 30bfSJ1, a magnetic field is generated,
By applying a current to the focusing coil #25 or the tracking coil 26 of the objective lens holder 21, the objective lens holder 21 can be moved up and down or rotated left and right about the support shaft 34. can. Thus.

上記コイル25或いは26にフォーカス誤差信号或いは
トラッキング誤差信号に応じた電流を流すことによシ、
上記対物レンズ20のフォーカス駆動制御或いはトラッ
キング駆動制御を行なうことができる。
By passing a current in accordance with the focus error signal or the tracking error signal through the coil 25 or 26,
Focus drive control or tracking drive control of the objective lens 20 can be performed.

上記した構成において、外ヨーク31ae31bに固着
されたフォーカス用永久磁石28m、28bとトラッキ
ング用永久磁石29m、29b、29c。
In the above configuration, the focusing permanent magnets 28m, 28b and the tracking permanent magnets 29m, 29b, 29c are fixed to the outer yoke 31ae31b.

29dは、いずれも外周部をS極に、内周部をN極に着
磁しである。さらに、外ヨーク31&側のフォーカス用
永久磁石28mとトラッキング用永久磁石29m、29
bとの間隔、及び外ヨーク3ib側のフォーカス用永久
磁石28bとトラッキング用永久磁石29e、29dと
の間隔は約1糊程度の間隙を有するため、対物レンズ保
持体21が光軸方向(フォーカス方向)に駆動しても。
29d is magnetized so that the outer circumferential part is S pole and the inner circumferential part is N pole. Furthermore, a permanent magnet for focusing 28m and a permanent magnet for tracking 29m and 29 on the outer yoke 31 & side.
b, and the distance between the focusing permanent magnet 28b and the tracking permanent magnets 29e and 29d on the outer yoke 3ib side have a gap of approximately one glue, so that the objective lens holder 21 is aligned in the optical axis direction (focusing direction). ) even if driven to.

トラッキング用コイル26はフォーカス用永久磁石28
m及び28bの磁束の影響を受けず、クロストークが生
じることがない。
The tracking coil 26 is a focusing permanent magnet 28
It is not affected by the magnetic fluxes of m and 28b, and no crosstalk occurs.

この場合、仮シに上記した約10程度の間隔を超えて上
記保持体21が光軸方向に駆動するようなことがあって
も、クロストークの影響は少なくてすむ。
In this case, even if the holder 21 were to be driven in the optical axis direction beyond the above-mentioned interval of about 10, the influence of crosstalk would be small.

以下、中立点保持部材35について詳述する。The neutral point holding member 35 will be described in detail below.

この中立点保持部材35は、第1図に示すように、断面
S字状のプリント基板から成シ、このプリント基板がy
j?リエステル又はポリイミドを主材料として形成され
ることによシ可撓性を有するものである。さらに、この
中立点保持部材350基板内には、第1図中の点線で示
す導体線40が複数重含まれており、この端子41には
フォーカス用コイル25及びトラッキング用コイル26
の終端部が接続されている。この接続は、ハンダ付等に
よシ容易に行なうことができる。又、中立点保持部材3
5の端子41とは反対側の端部には、この基板とコネク
ター接続するためのパターン42が設けられている。
As shown in FIG.
j? It has flexibility because it is formed mainly from polyester or polyimide. Further, the neutral point holding member 350 substrate includes a plurality of conductor wires 40 indicated by dotted lines in FIG.
The terminal ends of are connected. This connection can be easily made by soldering or the like. Moreover, the neutral point holding member 3
A pattern 42 for connector connection to this board is provided at the end of the board 5 opposite to the terminal 41.

このように、中立点保持部材35をフを一カス用コイル
25及びトラッキング用コイル26の接続手段として用
いることによシ、従来のようなよシ線によるリード線が
不要となる。このため、従来のように、わずられしい結
線作業が不要となるばかシか、対物レンズ保持体21の
滑めらかな摺回動を妨げるようなことがなくなる。
In this way, by using the neutral point holding member 35 as a means for connecting the one-piece coil 25 and the tracking coil 26, the conventional lead wire using a twisted wire becomes unnecessary. Therefore, there is no longer a need for troublesome wire connection work as in the prior art, and there is no longer any interference with the smooth sliding and rotation of the objective lens holder 21.

さらに上記中立点保持部材35は断面S字状に形成して
あ石から、有効長が長く、又その可撓性によシ、対物レ
ンズ保持体21を図中2方向に押圧するような軸倒れ方
向への力がかかシにくい構成となっている。
Further, the neutral point holding member 35 is formed to have an S-shaped cross section, has a long effective length, and has a flexible shaft that presses the objective lens holder 21 in two directions in the figure. It has a structure that makes it difficult to apply force in the direction of falling.

上述のような中立点保持部材35は、端子41を対物レ
ンズ保持体21側に配して、この対物レンズ保持体21
の内側に適宜中段9例えば接着剤等によシ貼シ付け、他
端を基台32側に配してこの他端に設けられた位置決め
用穴43を基台32の位置決めピン(不図示)に固着す
ることによシ取シ付けることができる。
The neutral point holding member 35 as described above has the terminal 41 disposed on the objective lens holder 21 side, and
The middle stage 9 is affixed to the inner side of the base 32 with adhesive, the other end is placed on the base 32 side, and the positioning hole 43 provided at the other end is inserted into the positioning pin (not shown) of the base 32. It can be installed by fixing it to the

なお、本発明による中立点保持部材は、光学系保持体の
支持手段には限定されず、上述した支持軸を中心として
摺回動するものの他、光学系保持体が基台に対して平行
板ばねKより支持されるもの等いずれのものにも、その
機能が適用される限シにおいて使用することができる。
Note that the neutral point holding member according to the present invention is not limited to the support means for the optical system holder, and in addition to the one that slides and rotates around the above-mentioned support shaft, the neutral point holding member according to the present invention is not limited to the support means for the optical system holder. Any device supported by a spring K can be used as long as its function is applicable.

又1本発明による中立点保持部材の他の実施例としては
1例えば、第3図及び第4図に示すものがある。
Other embodiments of the neutral point holding member according to the present invention include those shown in FIGS. 3 and 4, for example.

第3図に示す中立点保持部材は、第1図に示すものの形
状を断面コ字状に形成したものであシ。
The neutral point holding member shown in FIG. 3 is the same as that shown in FIG. 1 but has a U-shaped cross section.

多少設置に必要なスペースが第1図に示すものよ多少な
くてすむ。
The space required for installation is slightly smaller than that shown in Figure 1.

第4図に示す中立点保持部材は、第1図に示すものを対
物レンズ保持体の外周部に設置できる構成としたもので
あシ、他の部品との設置状況に応じて形状を変化させる
ことが可能である。
The neutral point holding member shown in Fig. 4 has a structure that allows it to be installed on the outer periphery of the objective lens holder, and its shape changes depending on the installation situation with other parts. Is possible.

さらに又1本発明による中立点保持部材は1コの装置に
ついてlコ又はそれ以上のものを取シ付けるようにして
も良い。
Furthermore, one or more neutral point holding members according to the present invention may be attached to one device.

(発明の効果) 以上説明したように1本発明の光学系駆動装置において
は、光学系保持体の中立点保持部材が可撓性を有するプ
リント基板によシ構成されているから、この中立点保持
部材をリード線として使用することによシ、従来のよう
な例えばよシ線によるリード線が、光学系保持体の移動
に対して無理な力を加えるようなことがなく、サー?特
性の劣化を防止することができる。
(Effects of the Invention) As explained above, in the optical system drive device of the present invention, since the neutral point holding member of the optical system holder is constituted by a flexible printed circuit board, the neutral point By using the holding member as a lead wire, the conventional lead wire, such as a twisted wire, does not apply unreasonable force to the movement of the optical system holder, and the sensor can be easily moved. Deterioration of characteristics can be prevented.

又、従来の面倒な結線作業が不要となり、この装置の組
立の作業能率を良くすることができる。
Further, the conventional troublesome wiring work is no longer necessary, and the work efficiency of assembling this device can be improved.

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

第1囚は本発明による光学系駆動装置の実施例を示す組
立斜視図、第2図は第1図に示す光学系保持体を示す斜
視図、第3図及び第4因は本発明による中立点保持部材
の他の実施例を示す斜視図。 第5図は従来の光学系駆動装置の組立斜視図である。 21・・・対物レンズ保持部材、32・・・基台、34
・・・支持軸、35・・・中立点保持部材、40・・・
導体線。 41・・・端子、42・・・パターン、43・・・位置
決め用穴。 代理人 弁理士 山 下 穣 平 第1図 第2図 第3図 第4図
Figure 1 is an assembled perspective view showing an embodiment of the optical system driving device according to the present invention, Figure 2 is a perspective view showing the optical system holder shown in Figure 1, and Figures 3 and 4 are neutral views according to the present invention. FIG. 7 is a perspective view showing another embodiment of the point holding member. FIG. 5 is an assembled perspective view of a conventional optical system driving device. 21... Objective lens holding member, 32... Base, 34
...Support shaft, 35...Neutral point holding member, 40...
conductor wire. 41...Terminal, 42...Pattern, 43...Positioning hole. Agent Patent Attorney Jo Taira Yamashita Figure 1 Figure 2 Figure 3 Figure 4

Claims (2)

【特許請求の範囲】[Claims] (1)基台に対して少なくとも1方向に移動可能に支持
された光学系保持体と、この光学系保持体に固着された
コイルと、このコイルを横切る磁界を発生する手段とを
有し、一端が前記基台に固定され、他端が前記光学系保
持体に固定されてこの光学系保持体を中立位置に保持す
る中立点保持部材が設けられた光学系駆動装置において
、前記中立点保持部材が、可撓性を有するプリント基板
より成ることを特徴とする光学系駆動装置。
(1) An optical system holder supported movably in at least one direction with respect to a base, a coil fixed to the optical system holder, and means for generating a magnetic field across the coil, In the optical system driving device, the neutral point holding member is provided with one end fixed to the base and the other end fixed to the optical system holder to hold the optical system holder at a neutral position. An optical system driving device characterized in that the member is made of a flexible printed circuit board.
(2)前記中立点保持部材が、ポリエステル、ポリイミ
ド等の可撓性を有する材料を主材料として形成されたこ
とを特徴とする特許請求の範囲第1項記載の光学系駆動
装置。
(2) The optical system driving device according to claim 1, wherein the neutral point holding member is mainly formed of a flexible material such as polyester or polyimide.
JP15031887A 1987-06-18 1987-06-18 Driving device for optical system Pending JPS63316324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15031887A JPS63316324A (en) 1987-06-18 1987-06-18 Driving device for optical system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15031887A JPS63316324A (en) 1987-06-18 1987-06-18 Driving device for optical system

Publications (1)

Publication Number Publication Date
JPS63316324A true JPS63316324A (en) 1988-12-23

Family

ID=15494401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15031887A Pending JPS63316324A (en) 1987-06-18 1987-06-18 Driving device for optical system

Country Status (1)

Country Link
JP (1) JPS63316324A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144130U (en) * 1989-05-09 1990-12-06

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02144130U (en) * 1989-05-09 1990-12-06

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