JPH0363937A - Inclination adjusting device for optical pickup - Google Patents

Inclination adjusting device for optical pickup

Info

Publication number
JPH0363937A
JPH0363937A JP20004889A JP20004889A JPH0363937A JP H0363937 A JPH0363937 A JP H0363937A JP 20004889 A JP20004889 A JP 20004889A JP 20004889 A JP20004889 A JP 20004889A JP H0363937 A JPH0363937 A JP H0363937A
Authority
JP
Japan
Prior art keywords
optical pickup
guide shaft
guide
tilt
adjustment device
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.)
Granted
Application number
JP20004889A
Other languages
Japanese (ja)
Other versions
JPH07111781B2 (en
Inventor
Satoru Koizumi
悟 小泉
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP20004889A priority Critical patent/JPH07111781B2/en
Publication of JPH0363937A publication Critical patent/JPH0363937A/en
Publication of JPH07111781B2 publication Critical patent/JPH07111781B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To eliminate a guide piece, for which flatness with extremely high accuracy is required, and to reduce cost by providing another guide, namely, the second guide shaft in the low order of the first guide shaft to support an optical pickup so that the optical pickup can be linearly slided and moved. CONSTITUTION:The first guide shaft 31 is provided to support the optical pickup 24 so that the optical pickup can be linearly slided and moved. Then, a tilt board 30 is provided to support the respective front side parts of both end parts in this guide shaft, to be turned corresponding to the bend of a disk 13 and to adjust the inclination of the optical pickup 24. A pair of guides 25 and 26 with perpendicular grooves are provided to vertically guide the slide in the both end parts of the first guide shaft 31 when this tilt board 30 is turned. Further, in the perpendicular groove of this guide, the second guide shaft 32 is provided to be supported so as to be slided and guided or so as to be fixed in the low order rather than the first guide shaft 31, to be engaged so as to be slided with the optical pickup 24, and to regulate the adjustment for the inclination of the optical pickup 24 in a vertical surface. Thus, the conventional guide piece is eliminated and the cost can be reduced.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 この発明は光ピックアップの傾斜調整装置に関し、更に
詳しくは、ディスクに光を照射することにより信号の読
取りを行う光ピックアップの傾斜角度を、ディスクの反
りに対応させて、調整する光ビックアップの傾斜調整装
置に関する。
DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field This invention relates to an optical pickup tilt adjustment device, and more specifically, to an optical pickup tilt adjustment device that adjusts the tilt angle of an optical pickup that reads signals by irradiating light onto a disk. The present invention relates to an optical start-up tilt adjustment device that adjusts in accordance with the warpage of a disk.

(ロ)従来の技術 この種の光ピックアップの傾斜調整装置の従来例を第9
〜11図に示す。すなわち、これらの図において、光ピ
ックアップの傾斜調整装置Hは、光ピックアップ4を直
線摺動移動可能に支持するガイド軸9と、このガイド軸
の両端部の各手前部分を支持し、ディスク(レーザディ
スク)13の反りに対応して回動し、光ピックアップ4
を傾斜調整しうるチルト板8と、このチルト板の回動時
に、上記ガイド軸9の両端部を垂直に摺動案内する垂直
溝5a、6a付ガイド5.6と、光ピックアップ4のガ
イド片7とから主としてなる。
(b) Prior art A conventional example of a tilt adjustment device for this type of optical pickup is described in No. 9.
- Shown in Figure 11. That is, in these figures, the optical pickup tilt adjustment device H supports a guide shaft 9 that supports the optical pickup 4 so as to be capable of linear sliding movement, supports the front portions of both ends of this guide shaft, and supports the disk (laser). The optical pickup 4 rotates in response to the warping of the disk) 13.
a tilt plate 8 whose inclination can be adjusted; a guide 5.6 with vertical grooves 5a and 6a which vertically slide and guide both ends of the guide shaft 9 when the tilt plate rotates; and a guide piece of the optical pickup 4. 7 becomes the main character.

そしてこのガイド片の側面7aには光ピックアップ4の
突部4cが摺動当接して光ピックアップ4とディスク1
3との光軸の直交関係を維持している。一方チルト板8
は、保持穴8a、8bにガイド軸9を挿入して一体とし
ている。支点穴8cには、シャーシ1上にネジ12で取
付けられたチルト板支持台10の段付軸10aが回転自
在に挿入され、抜けをストッパー11で防止されている
The protrusion 4c of the optical pickup 4 slides into contact with the side surface 7a of this guide piece, causing the optical pickup 4 and the disk 1 to come into contact with each other.
The orthogonal relationship of the optical axis with 3 is maintained. On the other hand, tilt plate 8
The guide shafts 9 are inserted into the holding holes 8a and 8b to form an integral unit. A stepped shaft 10a of a tilt plate support 10 attached to the chassis 1 with screws 12 is rotatably inserted into the fulcrum hole 8c, and is prevented from coming off by a stopper 11.

従ってガイド軸9はチルト板8と一体的に段付軸10a
を中心に矢印EF力方向回動可能となっている。なお、
4bは光ピックアップ4に形成されたガイド穴で、この
穴に上記ガイド軸が摺動移動可能に挿通されている。ス
ピンモータ2はシャーシ1上に取付けられ、更にそのモ
ータ上に、ディスク13を載置し回転させることができ
るターンテーブル3が取付けられている。そして光ピッ
クアップ4には、ディスク13上に記録されている信号
を読み取るための対物レンズ4aが設けられている。
Therefore, the guide shaft 9 is integrated with the tilt plate 8 into the stepped shaft 10a.
It is possible to rotate around the arrow EF in the force direction. In addition,
Reference numeral 4b denotes a guide hole formed in the optical pickup 4, into which the guide shaft is slidably inserted. A spin motor 2 is mounted on the chassis 1, and a turntable 3 on which a disk 13 can be placed and rotated is further mounted on the motor. The optical pickup 4 is provided with an objective lens 4a for reading signals recorded on the disk 13.

かくしてチルト板8が回動し、それにより、ガイド軸9
に挿入されている光ピックアップ4も回動することにな
り、ディスク13の反りに対応して傾斜角度を調整でき
る。一方光ピックアップ4の傾斜調整、つまりタンゼン
シャル方向(矢印■J方向)の規制は、ガイド片7のガ
イド面7aがガイド軸9と平行でかつ垂直な平面で構成
されていることにより、垂直面内で行うことができる。
In this way, the tilt plate 8 rotates, and thereby the guide shaft 9
The optical pickup 4 inserted in the disc 13 also rotates, and the inclination angle can be adjusted in accordance with the warpage of the disc 13. On the other hand, the inclination adjustment of the optical pickup 4, that is, the regulation of the tangential direction (arrow It can be done with

結局チルト調整駆動機構(公知の技術のため図示せず)
によりチルト板8が矢印EF力方向回動しても光ピック
アップ4のタンゼンシャル方向への変化はしない様に構
成されていた。
After all, the tilt adjustment drive mechanism (not shown because it is a known technology)
Therefore, even if the tilt plate 8 rotates in the direction of the arrow EF force, the optical pickup 4 is configured not to change in the tangential direction.

(ハ)発明が解決しようとする課題 ここでタンゼンシャル方向(矢印IJ)のディスク13
と光ピックアップ4との光軸の直交関係を維持するため
には、ガイド軸9のスライド用であるガイド5,6の垂
直溝5a、6aがシャーシ1上に互いに平行であり、か
つそれらの垂直溝5a、6aを通る面に対し、ガイド片
7の側面(ガイド面)7aが平行で、かつ平面度のよい
ものが必要となる。しかもシャーシ1の剛性を高く形成
しタワミを抑制すると共に各ガイド6.7を高精度でシ
ャーシl上に設け、かつガイド片7のガイド面7aを平
行に保ち、かつ高精度の平面度が必要となり、チルト調
整のための光ピックアップ4のガイド機構が高価なもの
となる不具合が生じる。
(c) Problem to be solved by the invention Here, the disk 13 in the tangential direction (arrow IJ)
In order to maintain the orthogonal relationship between the optical axes of the optical pickup 4 and the optical pickup 4, the vertical grooves 5a and 6a of the guides 5 and 6 for sliding the guide shaft 9 must be parallel to each other on the chassis 1, and It is necessary that the side surface (guide surface) 7a of the guide piece 7 is parallel to the surface passing through the grooves 5a and 6a and has good flatness. Moreover, it is necessary to form the chassis 1 with high rigidity to suppress deflection, and to provide each guide 6 and 7 on the chassis l with high precision, and to keep the guide surface 7a of the guide piece 7 parallel and with high precision flatness. Therefore, a problem arises in that the guide mechanism of the optical pickup 4 for tilt adjustment becomes expensive.

(ニ)鑓魚を解決するための手段及びその作用この発明
は、ディスクに光を照射することにより信号の読取りを
行う光ビックアップの傾斜角度を、ディスクの反りに対
応させて、調整する光ピックアップの傾斜調整装置にお
いて、光ピックアップを直線摺動移動可能に支持する第
1ガイド軸と、このガイド軸の両端部の各手前部分を支
持し、ディスクの反りに対応して回動し、光ピックアッ
プを傾斜調整しうるチルト板と、このチルト板の回動時
に、上記第1ガイド軸の両端部を垂直に摺動案内する1
対の垂直溝付ガイドと、このガイドの垂直溝に、上記第
1ガイド軸より下位で摺動案内可能に支持されるか、又
は固定支持され、光ピックアップと摺動可能に係合し、
光ピックアップの傾斜調整を垂直面内に規制する第2ガ
イド軸とを備えてなる光ピックアップの傾斜調整装置で
ある。
(d) Means for solving the problem of piston and its operation This invention provides an optical system that adjusts the inclination angle of an optical pickup for reading signals by irradiating light onto a disc in accordance with the warpage of the disc. The pickup tilt adjustment device includes a first guide shaft that supports the optical pickup so as to be able to slide in a straight line, and a first guide shaft that supports the front portions of both ends of the guide shaft, and rotates in response to the warp of the disc to adjust the optical a tilt plate capable of adjusting the inclination of the pickup; and 1 for vertically slidingly guiding both ends of the first guide shaft when the tilt plate is rotated.
a pair of vertically grooved guides; the vertical grooves of the guides are slidably guided or fixedly supported below the first guide shaft, and are slidably engaged with the optical pickup;
This is an optical pickup tilt adjustment device comprising a second guide shaft that restricts tilt adjustment of the optical pickup within a vertical plane.

すなわち、この発明は、光ピックアップをitJ摺動移
動可能に支持する第1ガイド軸の下位に、もう1つのガ
イド軸、つまり第2ガイド軸を設けることによって、従
来の極めて高精度の平面度が要求されるガイド片をなく
シ、それによってコストダウンを図ろうとするものであ
る。
That is, the present invention provides another guide shaft, that is, a second guide shaft, below the first guide shaft that supports the optical pickup in a slidable manner, thereby improving the flatness of the conventional extremely high precision. The aim is to eliminate the required guide piece, thereby reducing costs.

更にこの発明は、1対の垂直溝付ガイドのうち、少なく
とも一方の垂直溝が、他方の垂直溝との平行度を調整す
る調整手段を備えることによって、光ゼックアップの傾
斜調整をより正確に行える。
Further, in the present invention, at least one vertical groove of a pair of vertically grooved guides is provided with an adjusting means for adjusting the parallelism with the other vertical groove, thereby making it possible to more accurately adjust the inclination of the optical zek-up. I can do it.

(ホ)実施例 以下図に示す実施例に基づいてこの発明を詳述する。な
お、この発明はこれによって限定されるものではない。
(e) Examples The present invention will be described in detail below based on examples shown in the drawings. Note that this invention is not limited to this.

実施例1 この実施例のうち、従来例と同−構成部分には同一符号
、番号を付している。
Embodiment 1 In this embodiment, the same components as in the conventional example are given the same symbols and numbers.

まず第1〜4図において、光ピックアップの傾斜調整装
置には、光ピックアップ24を直線摺動移動可能に支持
する第1ガイド軸としてのメインガイド軸31と、この
ガイド軸の両端部の各手前部分を支持するチルト板30
と、このチルト板を回動させるべく支持する支持台10
と、メインガイド軸31の両端部を垂直に摺動案内する
垂直溝付ガイド25.26と、これらのガイドの垂直溝
25a、26aに、上記メインガイド軸31より下位で
摺動案内可能に支持され、かつ光ピックアップ24を直
線摺動可能に支持する第2ガイド軸としてのサブガイド
軸32とから主としてなる。なお、1は、シャーシ、2
はそのシャーシ1に取付けられたスピンモータ、3はデ
ィスク(レーザディスク)13を載置し、回転させるタ
ーンテーブルである。
First of all, in FIGS. 1 to 4, the optical pickup tilt adjustment device includes a main guide shaft 31 as a first guide shaft that supports the optical pickup 24 so as to be capable of linear sliding movement, and a main guide shaft 31 at both ends of this guide shaft. Tilt plate 30 that supports the part
and a support stand 10 that supports this tilt plate in order to rotate it.
, vertical grooved guides 25 and 26 that vertically slide and guide both ends of the main guide shaft 31, and vertical grooves 25a and 26a of these guides that are supported so as to be slidably guided below the main guide shaft 31. The sub-guide shaft 32 serves as a second guide shaft that supports the optical pickup 24 in a straight-line slidable manner. In addition, 1 is the chassis, 2
3 is a spin motor attached to the chassis 1, and 3 is a turntable on which a disk (laser disk) 13 is placed and rotated.

かくして光ピックアップ24は、図示しない公知の駆動
機構により、トラック方向(矢印AB方向)にメインガ
イド軸31及びサブガイド軸32上を移動し、ディスク
13上に記録されている信号を対物レンズ24aによっ
て読み取る。この際、ディスク13に反りがある場合に
は、段付軸10aを中心に矢印E又はF方向にチルト板
30が回動しく図示しない公知のチルト調整駆動機構に
より)、これに伴ってメインガイド軸31とサブガイド
軸32とが回動して光ビックアップ24が傾斜調整され
ディスク13と光ピックアップ24との光軸の直交関係
が維持される。特にメイン軸31とサブガイド軸32と
は、各両端部が同じガイドの垂直溝25a、26aを摺
動しているので、チルト板30の回動面の垂直度が高く
、従ってディスク13と光ピックアップ24との光軸の
直交関係をより正確に維持できるわけである。
In this way, the optical pickup 24 moves on the main guide shaft 31 and the sub-guide shaft 32 in the track direction (direction of arrow AB) by a known drive mechanism (not shown), and the signal recorded on the disk 13 is transferred by the objective lens 24a. read. At this time, if the disk 13 is warped, the tilt plate 30 is rotated in the direction of arrow E or F about the stepped shaft 10a (by a known tilt adjustment drive mechanism (not shown)), and the main guide The shaft 31 and the sub-guide shaft 32 rotate to adjust the inclination of the optical pickup 24, and the orthogonal relationship between the optical axes of the disk 13 and the optical pickup 24 is maintained. In particular, since both ends of the main shaft 31 and the sub-guide shaft 32 slide in the vertical grooves 25a and 26a of the same guide, the rotational surface of the tilt plate 30 has a high perpendicularity, and therefore the disc 13 and the optical This allows the orthogonal relationship of the optical axis with the pickup 24 to be maintained more accurately.

更に光ピックアップの傾斜調整装[Kは、1対の垂直溝
付ガイド25.26のうち、ガイド26が下方部分に通
孔26c、26dを有する取付板部26eを一体に備え
、通孔26cにネジ28が挿入されシャーシ20上に保
持されている。通孔26dの下部にはバネ27が挿入さ
れネジ29によりシャーシ20に保持されており、ネジ
29を回動することにより、垂直溝付ガイド26を取付
板部26eの支点部26を中心に矢印IJ方向に回動す
ることができる。この調整により一方の垂直1125a
との平行度調整が可能になり、それによって光ピックア
ップ24とディスク13との光軸の直交関係をより正確
に維持できる。
Furthermore, the optical pickup tilt adjustment device [K is a pair of vertically grooved guides 25 and 26, of which the guide 26 is integrally provided with a mounting plate portion 26e having through holes 26c and 26d in the lower portion thereof, A screw 28 is inserted and retained on the chassis 20. A spring 27 is inserted into the lower part of the through hole 26d and is held on the chassis 20 by a screw 29. By rotating the screw 29, the vertically grooved guide 26 is moved as shown in the arrow around the fulcrum 26 of the mounting plate 26e. It can be rotated in the IJ direction. With this adjustment, one vertical 1125a
This makes it possible to adjust the parallelism between the optical pickup 24 and the disk 13, thereby making it possible to more accurately maintain the orthogonal relationship between the optical axes of the optical pickup 24 and the disk 13.

実施例2 この実施例のうち、従来例と同一構成部分には同一符号
、番号を付している。
Embodiment 2 In this embodiment, the same components as in the conventional example are given the same symbols and numbers.

第5〜8図において、光ピックアップの傾斜調整装置t
Lは、光ピックアップ44を直線摺動移動可能に支持す
る第1ガイド軸としてのメインガイド軸51と、このガ
イド軸の両端部の各手前部分を支持するチルト板50と
、このチルト板を回動させるべく支持する支持台lOと
、メインガイド軸51の両端部を垂直に摺動案内する垂
直溝付ガイド45.46と、これらのガイドの垂直溝4
5a、46aに、上記メインガイド軸51より下位に固
定支持された第2ガイド軸としてのサブガイド軸52と
から主としてなる。
5 to 8, the optical pickup tilt adjustment device t
L includes a main guide shaft 51 as a first guide shaft that supports the optical pickup 44 in a linearly slidable manner, a tilt plate 50 that supports each front portion of both ends of the guide shaft, and a tilt plate 50 that rotates the tilt plate. A support stand 1O that supports the movement, vertically grooved guides 45, 46 that vertically slide and guide both ends of the main guide shaft 51, and vertical grooves 4 of these guides.
5a and 46a, and a sub-guide shaft 52 as a second guide shaft fixedly supported below the main guide shaft 51.

そして光ピックアップ44は下部に矢印GH方向に長い
穴より構成されたガイド溝44cを備え、このガイド溝
にサブガイド軸52を摺動可能に係合させ、メインガイ
ド軸51を中心に矢印IJ方向へ回動するのを防止して
いる。その他の構成はほぼ実施例1(第1〜4rI!J
)と同様であるので説明を省略する。
The optical pickup 44 is provided with a guide groove 44c formed of a hole elongated in the direction of arrow GH at the lower part, and a sub-guide shaft 52 is slidably engaged with this guide groove, and the main guide shaft 51 is centered in the direction of arrow IJ. This prevents it from rotating. The other configurations are almost the same as in Example 1 (1st to 4rI!J
), so the explanation will be omitted.

かくして光ピックアップ44は、図示しない公知の駆動
機構により、トラック方向(矢印AB方向)にメインガ
イド軸51及びサブガイド軸52上を移動し、ディスク
13上に記録されている信号を対物レンズ44aによっ
て読み取る。この際、ディスク13に反りがある場合に
は、段付軸lOaを中心に矢印E又はF方向にチルト板
50が回動じ(図示しない公知のチルト調整駆動機構に
より)、これに伴ってメインガイド軸51が回動して光
ピックアップ44が傾斜調整されディスク13と光ピッ
クアップ44との光軸の直交関係が維持される。特に光
ピックアップ44のガイド溝44cとサブガイド軸52
とが摺動状態で係合しているので、光ピックアップ44
の傾斜調整が垂直面内に規制され、光ピックアップ44
の傾斜調整が高精度で保障される。
In this way, the optical pickup 44 moves on the main guide shaft 51 and the sub-guide shaft 52 in the track direction (in the direction of arrow AB) by a known drive mechanism (not shown), and the signal recorded on the disk 13 is transferred by the objective lens 44a. read. At this time, if the disk 13 is warped, the tilt plate 50 rotates in the direction of arrow E or F around the stepped axis lOa (by a known tilt adjustment drive mechanism (not shown)), and the main guide The shaft 51 rotates to adjust the tilt of the optical pickup 44, and the orthogonal relationship of the optical axes of the disk 13 and the optical pickup 44 is maintained. In particular, the guide groove 44c of the optical pickup 44 and the sub-guide shaft 52
are engaged in a sliding state, so the optical pickup 44
The tilt adjustment of the optical pickup 44 is regulated within the vertical plane.
Tilt adjustment is guaranteed with high precision.

(へ)発明の効果 この発明によれば、光ピックアップを直線摺動移動可能
に支持する第」ガイド軸の下位に、もう1つのガイド軸
、つまり極めて高精度の平面度が要求される第2ガイド
軸を設けることによって、従来のごときガイド片をなく
シ、それによってコストダウンを図ることができる。
(f) Effects of the Invention According to the present invention, there is another guide shaft, that is, a second guide shaft that requires extremely high flatness, located below the first guide shaft that supports the optical pickup so that it can move in a straight line. By providing the guide shaft, the conventional guide piece can be eliminated, thereby reducing costs.

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

第1図はこの発明の一実施例を示す要部平面図、第2図
は、その側面図、第3図はターンテーブルまわりを省略
する第1図のXl−x1′断面図、第4図はターンテー
ブルまわりを光ピックアップを省略するXtXx矢視図
、第5図は他の実施例を示す第1図相当図、第6〜8図
はそれぞれ第2〜4図相当図、第9〜11図はそれぞれ
従来例を示す第1〜3図相当図である。 ■3・・・・・・ディスク、24・・・・・・光ピック
アップ、25.26・・・・・・ガイド、 25a、26a・・・・・・垂直溝、 30・・・−・チルト板、31・・・・・・メインガイ
ド軸、32・・・・・・サブガイド軸、 K・・・・・・光ピックアップの傾斜調整装置。 箪 3 防 笛 宵 第 7 閃 第 阿
Fig. 1 is a plan view of essential parts showing an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a sectional view taken along line Xl-x1' in Fig. 1 with the turntable and its surroundings omitted, and Fig. 4 5 is a view corresponding to FIG. 1 showing another embodiment, and FIGS. 6 to 8 are views corresponding to FIGS. The figures are equivalent to FIGS. 1 to 3 showing conventional examples. ■3... Disk, 24... Optical pickup, 25.26... Guide, 25a, 26a... Vertical groove, 30... Tilt Plate, 31... Main guide shaft, 32... Sub guide shaft, K... Optical pickup tilt adjustment device. Kan 3 No. 7 Sendai A

Claims (1)

【特許請求の範囲】 1、ディスクに光を照射することにより信号の読取りを
行う光ピックアップの傾斜角度を、ディスクの反りに対
応させて、調整する光ピックアップの傾斜調整装置にお
いて、 光ピックアップを直線摺動移動可能に支持する第1ガイ
ド軸と、このガイド軸の両端部の各手前部分を支持し、
ディスクの反りに対応して回動し、光ピックアップを傾
斜調整しうるチルト板と、このチルト板の回動時に、上
記第1ガイド軸の両端部を垂直に摺動案内する1対の垂
直溝付ガイドと、このガイドの垂直溝に、上記第1ガイ
ド軸より下位で摺動案内可能に支持されるか、又は固定
支持され、光ピックアップと摺動可能に係合し、光ピッ
クアップの傾斜調整を垂直面内に規制する第2ガイド軸
とを備えてなる光ピックアップの傾斜調整装置。 2、第1ガイド軸及び第2ガイド軸は、いずれも、両端
部が同一の垂直溝に摺動案内可能に支持され、かつ光ピ
ックアップに直線摺動移動可能に係合してなる請求項1
記載の光ピックアップの傾斜調整装置。 3、1対の垂直溝付ガイドは、少なくともその一方の垂
直溝が他方の垂直溝との平行度を調整する調整手段を具
備してなる請求項1記載の光ピックアップの傾斜調整装
置。 4、第2ガイド軸は、両端部が1対の垂直溝付ガイドに
固定支持され、光ピックアップは、第2ガイド軸と摺動
可能に係合し、その傾斜調整を垂直面内に規制できるガ
イド溝を備えてなる請求項1記載の光ピックアップの傾
斜調整装置。
[Claims] 1. An optical pickup tilt adjustment device that adjusts the tilt angle of an optical pickup that reads signals by irradiating light onto a disc in accordance with the warpage of the disc, comprising: A first guide shaft that is slidably supported, and a front portion of each end of the guide shaft that is supported,
a tilt plate that rotates in response to the warpage of the disk to adjust the tilt of the optical pickup; and a pair of vertical grooves that vertically slide and guide both ends of the first guide shaft when the tilt plate rotates. a guide that is slidably guided or fixedly supported in the vertical groove of the guide below the first guide shaft, and is slidably engaged with the optical pickup, and is configured to adjust the inclination of the optical pickup. A tilt adjustment device for an optical pickup, comprising a second guide shaft for regulating the angle within a vertical plane. 2. The first guide shaft and the second guide shaft each have both ends supported in the same vertical groove so as to be slidably guided, and engaged with the optical pickup so as to be capable of linear sliding movement.
The tilt adjustment device for the optical pickup described above. 3. The optical pickup tilt adjustment device according to claim 1, wherein the pair of vertically grooved guides are provided with adjusting means for adjusting the parallelism of at least one vertical groove with the other vertical groove. 4. Both ends of the second guide shaft are fixedly supported by a pair of vertically grooved guides, and the optical pickup is slidably engaged with the second guide shaft, and its inclination adjustment can be restricted within a vertical plane. The optical pickup tilt adjustment device according to claim 1, further comprising a guide groove.
JP20004889A 1989-07-31 1989-07-31 Optical pickup tilt adjustment device Expired - Fee Related JPH07111781B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20004889A JPH07111781B2 (en) 1989-07-31 1989-07-31 Optical pickup tilt adjustment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20004889A JPH07111781B2 (en) 1989-07-31 1989-07-31 Optical pickup tilt adjustment device

Publications (2)

Publication Number Publication Date
JPH0363937A true JPH0363937A (en) 1991-03-19
JPH07111781B2 JPH07111781B2 (en) 1995-11-29

Family

ID=16417963

Family Applications (1)

Application Number Title Priority Date Filing Date
JP20004889A Expired - Fee Related JPH07111781B2 (en) 1989-07-31 1989-07-31 Optical pickup tilt adjustment device

Country Status (1)

Country Link
JP (1) JPH07111781B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04344330A (en) * 1991-05-22 1992-11-30 Teac Corp Inclination correcting device for optical head
US6356525B1 (en) * 1998-12-28 2002-03-12 Pioneer Corporation Skew adjusting apparatus for an optical disc player

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04344330A (en) * 1991-05-22 1992-11-30 Teac Corp Inclination correcting device for optical head
US6356525B1 (en) * 1998-12-28 2002-03-12 Pioneer Corporation Skew adjusting apparatus for an optical disc player

Also Published As

Publication number Publication date
JPH07111781B2 (en) 1995-11-29

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