JPH01224930A - Objective lens driving device for optical disk device - Google Patents
Objective lens driving device for optical disk deviceInfo
- Publication number
- JPH01224930A JPH01224930A JP4968488A JP4968488A JPH01224930A JP H01224930 A JPH01224930 A JP H01224930A JP 4968488 A JP4968488 A JP 4968488A JP 4968488 A JP4968488 A JP 4968488A JP H01224930 A JPH01224930 A JP H01224930A
- Authority
- JP
- Japan
- Prior art keywords
- objective lens
- holding member
- lens holding
- support shaft
- direction control
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims description 13
- 238000004804 winding Methods 0.000 abstract description 7
- 239000000853 adhesive Substances 0.000 abstract description 6
- 230000001070 adhesive effect Effects 0.000 abstract description 6
- 229910000679 solder Inorganic materials 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 4
- 230000006866 deterioration Effects 0.000 description 3
- 238000005476 soldering Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L24/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L24/28—Structure, shape, material or disposition of the layer connectors prior to the connecting process
- H01L24/29—Structure, shape, material or disposition of the layer connectors prior to the connecting process of an individual layer connector
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Optical Recording Or Reproduction (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
この発明は、光学式ディスク装置の対物レンズ駆動装置
、例えば、光学式ディスク再生装置、記録再生装置のよ
うな光学式ディスク装置の対物レンズ駆動装置に関する
ものである。Detailed Description of the Invention [Industrial Application Field] The present invention relates to an objective lens driving device for an optical disc device, for example, an objective lens driving device for an optical disc device such as an optical disc playback device or a recording/playback device. It is related to the device.
［従来の技術１
第４図は、例えば、特開昭６２−１５４３３１号に示さ
れた従来のこの種の対物レンズ駆動装置を示す平面図で
あり、第５図は第４図のＶ−ｖ線による断面図、第６図
は第４図の要部分解斜視図である。[Prior art 1] Fig. 4 is a plan view showing a conventional objective lens driving device of this kind disclosed in, for example, Japanese Patent Application Laid-Open No. 62-154331, and Fig. 5 is a plan view of the conventional objective lens driving device shown in Fig. 4. 6 is an exploded perspective view of the main part of FIG. 4.
図において、符号（１）は対物レンズ駆動装置の本体フ
レーム、（２）は本体フレームに直立して固着されてい
る支持軸、（３）はディスク （図示せず）に光スポッ
トを形成する対物レンズ、（４）は対物レンズ（３）を
その光軸が支持軸（２）と平行になるよう支持する対物
レンズ保持部材で、支持軸（２）に沿って摺動自在にか
つ支持軸（２）を中心として回動自在に装着されている
。In the figure, (1) is the main body frame of the objective lens drive device, (2) is a support shaft that is fixed upright to the main body frame, and (3) is an objective that forms a light spot on a disk (not shown). The lens (4) is an objective lens holding member that supports the objective lens (3) so that its optical axis is parallel to the support axis (2), and is slidable along the support axis (2) and attached to the support axis ( 2) is attached so that it can rotate freely around the center.
（５）は対物レンズ保持部材（４）の下部に固着された
円筒状の焦点方向制御用コイル、（６）及び（７）は対
物レンズ保持部材（４）の回転中心に対して対称位置で
、かつ、回転中心に向かって巻き方向が同じに巻回され
ている一対のトラッキング方向制御用コイルでリード線
（８）によって直列接続されている。(5) is a cylindrical focal direction control coil fixed to the lower part of the objective lens holding member (4), and (6) and (7) are located symmetrically with respect to the rotation center of the objective lens holding member (4). , and a pair of tracking direction control coils wound in the same direction toward the rotation center and connected in series by a lead wire (8).
（９）は焦点方向制御用永久磁石で、ヨーク（ｌＯ）に
装着されて、焦点方向制御用コイル（５）に対し磁気回
路を形成している。(9) is a permanent magnet for focal direction control, which is attached to the yoke (lO) and forms a magnetic circuit for the focal direction control coil (5).
また、（１１）はトラッキング方向制御用永久磁石で、
ヨーク（１２）を配置させ、トラッキング方向制御用コ
イル（６）、 （７）に対する磁気回路を形成させてい
る。In addition, (11) is a permanent magnet for tracking direction control,
A yoke (12) is arranged to form a magnetic circuit for the tracking direction control coils (6) and (7).
（１３）は弾性部材であって、本体フレーム（１）に設
けられた固定部側ビン（１４）と、対物レンズ保持部材
（４）に、設けられた可動部側ビン（１５）とに取り付
けられている。(13) is an elastic member, which is attached to the fixed part side bottle (14) provided on the main body frame (1) and the movable part side bottle (15) provided on the objective lens holding member (4). It is being
次に上記従来装置の動作について説明する。Next, the operation of the above conventional device will be explained.
まず、光スポットの焦点ずれが検出されると、このずれ
量に応じた電流が焦点方向制御用コイル（５）に流れ、
焦点方向制御用永久磁石（９）による磁界と作用して、
対物レンズ保持部材＜４）ひいては対物レンズ（３）を
支持軸（２）の軸線方向に駆動し、弾性部材（１３）に
よってばね制御し、焦点制御が行なわれる。First, when a defocus of the light spot is detected, a current corresponding to the amount of defocus flows through the focal direction control coil (5).
Working with the magnetic field from the focal direction control permanent magnet (9),
Objective lens holding member <4) In turn, the objective lens (3) is driven in the axial direction of the support shaft (2) and is spring controlled by the elastic member (13) to perform focus control.
一方、トラッキング方向制御については、光スポットの
トラックずれが検出されると、このずれ量に応じた電流
がトラッキング方向制御用コイル（８）、 （７）に直
列に流れトラッキング方向制御用永久磁石（１１）の磁
界と作用して、対物レンズ保持部材（４）ひいては対物
レンズ（３）を支持軸（２）の軸線まわりに回動させ、
焦点制御と同じく、弾性部材（１３）によってばね制動
し、ｌ・ラッキング制御が行なわれる。On the other hand, regarding tracking direction control, when a track deviation of the optical spot is detected, a current corresponding to the amount of deviation flows in series to the tracking direction control coils (8) and (7), and the tracking direction control permanent magnet ( 11) to rotate the objective lens holding member (4) and eventually the objective lens (3) around the axis of the support shaft (2),
Similarly to the focus control, the elastic member (13) performs spring braking to perform l.racking control.
［発明が解決しようとする課題］
従来の対物レンズ駆動装置は、以上のように構成されて
いるので、微細な線を巻き固めたトラッキング方向制御
用コイル（６） （７）をそれぞれ対物レンズ保持部材
（４）の回転中心である支持軸（２）に対称な側面に接
着し、そして直列に接続するため、対物レンズ保持部材
（４）の表面でハンダ付けが必要であった。[Problems to be Solved by the Invention] Since the conventional objective lens drive device is configured as described above, the tracking direction control coils (6) and (7), which are made by winding and hardening fine wires, are used to hold the objective lens. Soldering was required on the surface of the objective lens holding member (4) in order to bond it to the side surface symmetrical to the support shaft (2), which is the center of rotation of the member (4), and to connect it in series.
この場合、トラッキング方向制御用コイルの接着は、コ
イルを損傷しないよう、また、接着剤が摺動部等へはみ
出さないように注意することが必要であり、また、接着
不具合の場合には、剛性が不足し、びびりの発生となっ
て共振が発生し、その結果、特性の低下を生ずるので、
このような状態を生じさせないように注意しなければな
らず、従って、組立は非常に困難かつ手間を要するとい
う課題を有していた。In this case, when adhering the tracking direction control coil, it is necessary to be careful not to damage the coil and prevent the adhesive from spilling onto the sliding parts. Rigidity is insufficient, vibration occurs and resonance occurs, resulting in deterioration of characteristics.
Care must be taken not to cause such a situation, and therefore assembly has been very difficult and time consuming.
この発明は、上記のような課題を解決するためになされ
たもので、トラッキング方向制御用コイルの直接ハンダ
付け作業を必要とせず、トラッキング方向制御用コイル
の接着組立がゴミ等の異物を嫌う対物レンズ保持部材へ
のゴミ等異物の付着を生ぜず、また、強固に巻き付け固
定も可能で組立も容易であって特性劣化も起こさない光
学式ディスク装置の対物レンズ駆動装置を得ることを目
的とする。This invention was made in order to solve the above-mentioned problems, and does not require direct soldering of the tracking direction control coil, and allows the adhesive assembly of the tracking direction control coil to be applied to an objective object that avoids foreign matter such as dust. To provide an objective lens drive device for an optical disk device that does not cause foreign matter such as dust to adhere to a lens holding member, can be tightly wrapped and fixed, is easy to assemble, and does not cause characteristic deterioration. .
［課題を解決するための手段］
この発明に係る光学式ディスク装置の対物レンズ駆動装
置は、回動方向に駆動し、トラックずれを制御するため
の駆動コイルを設けたコイルホルダを対物レンズ保持部
材に形成された貫通穴に嵌装固定するようにしたもので
ある。[Means for Solving the Problems] An objective lens drive device for an optical disk device according to the present invention includes a coil holder provided with a drive coil for driving in a rotational direction and controlling track deviation as an objective lens holding member. It is designed to be fitted and fixed into a through hole formed in the.
［作 用］
この発明によるトラッキング方向制御用コイルは、１本
の線を直接コイルホルダーの両端の巻心に張力をもって
２個直列に巻き回し、更に強固に接着し、また、このコ
イルホルダーに線を巻回接着したあとは、単に、対物レ
ンズ保持部材に取り付ければよく、対物レンズ保持部材
に組立時の接着剤、ハンダあるいはゴミ等の異物が付着
しにくくなり、組立ても容易で良好な特性が得られる。[Function] In the tracking direction control coil according to the present invention, one wire is directly wound in series with tension around the winding cores at both ends of the coil holder, and the wires are further firmly bonded to the coil holder. After winding and gluing, it is only necessary to attach it to the objective lens holding member, which prevents adhesive, solder, dust, and other foreign substances from adhering to the objective lens holding member during assembly, making it easy to assemble and has good characteristics. can get.
［実施例コ
以下、この発明をその一実施例を示す図に基づいて説明
する。[Embodiment] The present invention will be explained below based on the drawings showing one embodiment of the invention.
第１図は対物レンズ駆動装置を示す平面図であり、第２
図は第１図の■−■線による断面図、第３図は第１図の
要部分解斜視図である。FIG. 1 is a plan view showing the objective lens driving device, and the second
The figure is a sectional view taken along the line ■--■ in FIG. 1, and FIG. 3 is an exploded perspective view of the main part of FIG.
図において、符号（１）〜（３）、 （５）、 （９）
〜（１５）によって示すものは、従来装置において同一
符号で示したものと、同−又は同等のものである。In the figure, symbols (1) to (3), (5), (9)
Those indicated by (15) are the same as or equivalent to those indicated by the same reference numerals in the conventional device.
次に符号（２０）は対物レンズ保持部材であって、この
対物レンズ保持部材（２０）には、支持軸（２）に直交
する貫通穴（２０ａ）が設けられている。Next, reference numeral (20) denotes an objective lens holding member, and this objective lens holding member (20) is provided with a through hole (20a) orthogonal to the support shaft (2).
（２１）は対物レンズ保持部材（２０）の貫通穴（２０
ａ）に嵌装されるコイルホルダーであって、その両端に
は、巻心部（２１ａ）、 （２１ｂ＞が設けられており
、これに１本の線でトラッキング方向制御用コイル（２
２ａ）と（２２ｂ）とを張力を持たせて直列に巻き回し
ており、このつながり部分（２２ｃ）はコイルホルダー
（２１）に設けたくぼみをはわせて、コイルホルダー（
２１）を対物レンズ保持部材（２０）の上記貫通穴（２
０ａ）へ挿入したとき、邪魔とならず、挿入固着できる
ようになっている。(21) is the through hole (20) of the objective lens holding member (20).
The coil holder is fitted into the coil holder (21a) and (21b>) at both ends thereof, and a tracking direction control coil (21b) is connected to this with a single wire.
2a) and (22b) are wound in series with tension, and this connection part (22c) is provided with a recess in the coil holder (21).
21) into the through hole (2) of the objective lens holding member (20).
When inserted into 0a), it does not get in the way and can be firmly inserted.
更に、トラッキング方向制御用コイル（２２ａ）。Furthermore, a tracking direction control coil (22a).
（２２ｂ）は、巻回した後、接着剤で強固に固着されて
いる。(22b) is firmly fixed with adhesive after being wound.
また、コイルホルダー（２１）の中央部には、支持軸（
２）の径よりも大きな穴（２１ｃ）が設けられており、
支持軸（２）がこの穴（２ｆｃ）を貫通しており、トラ
ッキング方向制御用コイル（２０ａ）、 （２２ｂ）を
支持軸（２）に軸対称で配置できるようにしている。In addition, a support shaft (
A hole (21c) larger than the diameter of 2) is provided,
The support shaft (2) passes through this hole (2fc), so that the tracking direction control coils (20a) and (22b) can be arranged axially symmetrically to the support shaft (2).
なお、動作については、従来と同じなので、ここでは説
明を省略する。Note that the operation is the same as the conventional one, so the explanation will be omitted here.
また、上記実施例では、トラッキング方向ｆＩｉｌ＋御
用コイル（２２ａ）、 （２２ｂ）を、コイルホルダー
（２１）に巻き回し接着するものとしたが、合成樹脂に
よって、コイルホルダー（２１）と上記トラッキング方
向制御用コイル（２２ａ）、 （２２ｂ）とを一体成形
としても良い。Further, in the above embodiment, the tracking direction fIil + the control coils (22a) and (22b) are wound around the coil holder (21) and bonded, but the coil holder (21) and the tracking direction control are made of synthetic resin. The coils (22a) and (22b) may be integrally molded.
［発明の効果コ
以上のように、この発明によれば、２個のトラッキング
方向制御用コイルを、両端に巻心を持つコイルホルダー
の巻心に、１本の線で張力を持たせて直列に巻き回し、
更に、強固に接着剤で固着して構成し、この状悪で対物
レンズ保持部材の貫通穴に挿着しているので、トラッキ
ング方向制御用コイルの接着不具合も発生せず、従って
、剛性不足による共振も発生せず、その結果、特性の低
下も起こすことはなく、また、コイルホルダーに接着配
線したものを一体で対物レンズ保持部材へ嵌装固着する
ので、ハンダによる取付けは一切不要となり、また、ゴ
ミ、ハンダ等の異物は対物レンズ保持部材へ付着しにく
くなり、従って、組立容易で安定した特性を有する光学
式ディスク装置の対物レンズ駆動装置が得られる効果を
有している。[Effects of the Invention] As described above, according to the present invention, two tracking direction control coils are connected in series to the winding core of a coil holder having winding cores at both ends with tension applied to one wire. Wind it around;
Furthermore, since it is firmly fixed with adhesive and is inserted into the through hole of the objective lens holding member, there is no problem of adhesion of the tracking direction control coil, and therefore, there is no problem with the tracking direction control coil due to lack of rigidity. No resonance occurs, and as a result, there is no deterioration in characteristics. Also, since the coil holder and the wires are glued and fixed to the objective lens holding member, there is no need for soldering at all. Foreign matters such as dust, solder, etc. are less likely to adhere to the objective lens holding member, and therefore an objective lens drive device for an optical disk device that is easy to assemble and has stable characteristics can be obtained.
第１図はこの発明の一実施例の対物レンズ駆動装置を示
す平面図、第２図は第１図の■−■線による断面図、第
３図は第１図の要部分解斜視図、第４図は従来の対物レ
ンズ駆動装置の平面図、第５図は第４図の■−■線によ
る断面図、第６図は第４図の要部分解斜視図である。
図において、（１）・・・本体フレーム、（２）・・・
支持軸、（３）・・・対物レンズ、（２０）・・・対物
レンズ保持部材、（２０ｍ＞・・・貫通穴、（２１）・
・・コイルホルダー、（２１ａ）、 （２１ｂ）−巻心
、（２２ａ）、 （２２ｂ）−）ラッキング方向制御用
コイル。
なお、各図中、同一符号は同一または相当部分を示す。
２：叉櫟軸
３ ・ ｆｆ＠Ｌシス゛
２０ ： ｎｎ１−Ｌ’７：ａＷｎ’ＪＴ２１ａ、２
１ｂ ：啓開
Ｚ２ａ、２２ｂ ： ）ラー＋↑：＝’７ｉ＃’ｌ’
１ｍ出コイルｌｌ（１FIG. 1 is a plan view showing an objective lens driving device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is an exploded perspective view of the main part of FIG. 1. FIG. 4 is a plan view of a conventional objective lens driving device, FIG. 5 is a cross-sectional view taken along the line ■--■ in FIG. 4, and FIG. 6 is an exploded perspective view of the main part of FIG. 4. In the figure, (1)... body frame, (2)...
Support shaft, (3)...Objective lens, (20)...Objective lens holding member, (20m>...Through hole, (21)...
...Coil holder, (21a), (21b) - winding core, (22a), (22b) -) racking direction control coil. In each figure, the same reference numerals indicate the same or corresponding parts. 2: Crossshaft 3 ff@L system゛20: nn1-L'7: aWn'JT21a, 2
1b: Kaikai Z2a, 22b: ) Ra+↑:='7i#'l'
1m output coil ll (1
Claims (1)
線方向に摺動自在でかつ上記支持軸を中心として回動自
在に設けられていると共に、ディスク上に光スポットを
形成する対物レンズをその光軸が上記支持軸と平行にな
るように取り付け支持している対物レンズ保持部材、こ
の対物レンズ保持部材を上記支持軸の軸線方向及び回動
方向に駆動する駆動装置を備え上記対物レンズ保持部材
を駆動して上記対物レンズを介してディスク上に集光さ
れる光スポットのフォーカスずれ及びトラックずれを制
御する光学式ディスク装置の対物レンズ駆動装置におい
て、上記回動方向に駆動し、トラックずれを制御するた
めの駆動コイルを設けたコイルホルダを上記対物レンズ
保持部材に形成された貫通穴に嵌装固定するようにした
ことを特徴とする光学式ディスク装置の対物レンズ駆動
装置。A support shaft is fixed to the main body frame, and the support shaft is slidable in the axial direction of the support shaft and rotatable around the support shaft. The objective lens holding member is provided with an objective lens holding member that is attached and supported so that the optical axis is parallel to the support shaft, and a drive device that drives the objective lens holding member in the axial direction and rotational direction of the support shaft. In an objective lens driving device of an optical disk device, the objective lens driving device of an optical disk device drives in the rotational direction to control the focus deviation and track deviation of a light spot focused on the disk via the objective lens. 1. An objective lens drive device for an optical disc device, characterized in that a coil holder provided with a drive coil for control is fitted and fixed into a through hole formed in the objective lens holding member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4968488A JPH01224930A (en) | 1988-03-04 | 1988-03-04 | Objective lens driving device for optical disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4968488A JPH01224930A (en) | 1988-03-04 | 1988-03-04 | Objective lens driving device for optical disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01224930A true JPH01224930A (en) | 1989-09-07 |
Family
ID=12838007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4968488A Pending JPH01224930A (en) | 1988-03-04 | 1988-03-04 | Objective lens driving device for optical disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01224930A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5408296A (en) * | 1991-04-23 | 1995-04-18 | Fuji Photo Film Co., Ltd. | Color proof making apparatus |
| US5410335A (en) * | 1991-07-02 | 1995-04-25 | Fuji Photo Film Co., Ltd. | Method and apparatus for recording an image on a multicolor thermal recording material |
| US5463444A (en) * | 1992-09-24 | 1995-10-31 | Fuji Photo Film Co., Ltd. | Heat development processor wherein steam is discharged from a heat sensitive material |
-
1988
- 1988-03-04 JP JP4968488A patent/JPH01224930A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5408296A (en) * | 1991-04-23 | 1995-04-18 | Fuji Photo Film Co., Ltd. | Color proof making apparatus |
| US5410335A (en) * | 1991-07-02 | 1995-04-25 | Fuji Photo Film Co., Ltd. | Method and apparatus for recording an image on a multicolor thermal recording material |
| US5463444A (en) * | 1992-09-24 | 1995-10-31 | Fuji Photo Film Co., Ltd. | Heat development processor wherein steam is discharged from a heat sensitive material |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH07182671A (en) | Coil bobbin and apparatus for driving objective lens using coil bobbin | |
| KR100702636B1 (en) | Biaxial actuator, optical part and optical disk device | |
| JPH01224930A (en) | Objective lens driving device for optical disk device | |
| JP3563628B2 (en) | Objective lens drive | |
| JP4160929B2 (en) | Objective lens support mechanism of optical pickup | |
| JP3831603B2 (en) | Optical head device | |
| JPH0714187A (en) | Lend holding suspension for optical pickup | |
| KR100288421B1 (en) | Wire Drive Optical Pickup Actuator | |
| JPS647468Y2 (en) | ||
| KR200144849Y1 (en) | Tracking Coil Assembly Structure of Axial Perturbation Actuator | |
| JPH04263128A (en) | Objective lens driving device for optical recording/ reproduction device | |
| JP2003317284A (en) | Optical head device | |
| KR100477596B1 (en) | Optical Pickup Actuator and Manufacturing Method | |
| JP2620663B2 (en) | Objective lens drive | |
| KR970002924A (en) | Optical pickup objective lens driving device and manufacturing method thereof | |
| JPH11312321A (en) | Objective lens drive device | |
| JP3851229B2 (en) | Actuator suspension installation device | |
| JP2004265480A (en) | Position fine adjusting device | |
| JPH0110755Y2 (en) | ||
| JPH09180217A (en) | Optical head actuator | |
| JPH0150977B2 (en) | ||
| JPH1027360A (en) | Objective lens drive unit | |
| JP2001351260A (en) | Optical system drive device | |
| JPH10172160A (en) | Method for assembling objective lens driving device and member for vibration system part | |
| JP2679018C (en) |