JPS59223952A - Device for adjusting skew angle of optical device - Google Patents

Device for adjusting skew angle of optical device

Info

Publication number
JPS59223952A
JPS59223952A JP9918083A JP9918083A JPS59223952A JP S59223952 A JPS59223952 A JP S59223952A JP 9918083 A JP9918083 A JP 9918083A JP 9918083 A JP9918083 A JP 9918083A JP S59223952 A JPS59223952 A JP S59223952A
Authority
JP
Japan
Prior art keywords
pickup device
circularly
arcuate
skew angle
holes
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
JP9918083A
Other languages
Japanese (ja)
Inventor
Jihei Fujita
藤田　治平
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.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
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 Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP9918083A priority Critical patent/JPS59223952A/en
Publication of JPS59223952A publication Critical patent/JPS59223952A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble
    • G11B7/0956—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble to compensate for tilt, skew, warp or inclination of the disc, i.e. maintain the optical axis at right angles to the disc
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/0857—Arrangements for mechanically moving the whole head
    • G11B7/08582—Sled-type positioners
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/095—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following specially adapted for discs, e.g. for compensation of eccentricity or wobble

Landscapes

  • Mounting And Adjusting Of Optical Elements (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)

Abstract

PURPOSE:To prevent the offset of the contact of the optical axis of a pickup device and a disk when a skew angle is adjusted by constituting a skew angle adjusting device with circularly-arcuate convex parts (or through holes) formed on the main body of the pickup device or a fitting member fitted to the main body and a supporting member on which circularly-arcuate through holes (or convex parts) that can be put in the circularly-arcuate convex parts (or through holes) of the main body or the fitting member is formed. CONSTITUTION:Inclination of the optical axis of a pickup device 10 to a disk D can be adjusted by moving circularly-arcuate convex parts 20 and 21 of the pickup device 10 in the direction of the arrow A or B along circularly-arcuate through holes 23 and 24 of a supporting member 22. Similarly, when circularly-arcuate convex parts 25 and 26 of the supporting member 22 are moved in the direction of the arrow C or D along circularly-arcuate through holes 28 and 29 of a fixing member 27, inclination of the optical axis of the pickup device 10 to the disk D can be adjusted. Since the circularly-arcuate convex parts 20, 21, 25, and 26 and circularly-arcuate through holes 23, 24, 28, and 29 are made to have circularly-arcuate shapes with the focal point position X of the pickup device 10 at their center, the focal point position does not move when a skew angle is adjusted.

Description

【発明の詳細な説明】 （イ）産業上の利用分野 本発明は、ディスクとこのディスクに情報信号を記録者
しくけディスクに記録された情報信号を読み収る為の光
学系を備えたピックアンプ装置の光軸とのｌ／Ａ各ノス
キュー角を調整するスキュー角調整装置に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Application Field The present invention relates to a pick equipped with a disk, a recorder for recording information signals onto the disk, and an optical system for reading the information signals recorded on the disk. The present invention relates to a skew angle adjustment device that adjusts each l/A no skew angle with respect to the optical axis of an amplifier device.

（ロ））従来技術 従来のスキュー角調整装置につめて第１図〜第３図を参
照して説明する。(b)) Prior Art A conventional skew angle adjusting device will be explained with reference to FIGS. 1 to 3.

図において、（Ｄ１ｆｉディスク、（１）は光学装置本
体に取付けられたシャーシ、（２）はシャーシｆ１）に
収付けられたガイドレールで、スライダー（３）が移動
スる際の案内手段となる。（４）はスライダー（３）に
固定された固定板、（５）は固定板（４）に対して変位
可能な可動板、（６）（７１は固定板（４）と可動板（
５）間に配置されたスプリング、（８１（９）は固定板
１４）及びｆＴｒ前板（５）に螺着された螺子、１１Ｇ
＋は可動板（５）に固定されたピックアップ装置で、デ
ィスクの）に情報信号を記録若しくはディスクの）に記
録された情報信号を読み取る為の光学系を備えている。In the figure, (D1fi disk, (1) is a chassis attached to the optical device body, (2) is a guide rail installed in chassis f1), which serves as a guide means when the slider (3) moves. . (4) is a fixed plate fixed to the slider (3), (5) is a movable plate that can be displaced with respect to the fixed plate (4), (6) (71 is the fixed plate (4) and the movable plate (
5) A spring disposed between (81 (9) is the fixed plate 14) and a screw screwed to the fTr front plate (5), 11G
A pickup device (+) is fixed to the movable plate (5), and is equipped with an optical system for recording information signals on the disk () or reading information signals recorded on the disk ().

αＤはディスク（Ｄ）を回転駆動させる為のスピンドル
モータでアル。αD is a spindle motor for rotating the disk (D).

斯る装置においては、ビックアンプ装置（１０）の真下
＋且つディスクの）に対して垂直な光軸の延長下に支点
ｔｉｉを有する可動板（５）にピックアップ装置（１■
を固定し、この可納板（５）及び固定板（４）に螺着さ
れた螺子＋８０９１を締付は或は緩めることによりｊｉ
ｌ　ｕＪ板（５）を固定板（４）に対して変］ヴさせ、
以ってスキコーー角（ディスク（１）ｌとピックアップ
装置（１ωの光軸とがなす角度）の＃ｌｌ整が達成され
る（第２図・第６図参照）。In such a device, a pickup device (1
By fixing the ji
l uJ plate (5) is changed with respect to the fixed plate (4),
As a result, the #ll adjustment of the Schiko angle (the angle between the disk (1) l and the optical axis of the pickup device (1ω)) is achieved (see FIGS. 2 and 6).

然し乍ら、断る従来装置では、スキューｆ１を調整する
際、ピックアップ装置に備えられた光学系の光軸とディ
スクとが接する位置がずれるという問題を生じていた。However, in the conventional device mentioned above, when adjusting the skew f1, a problem arises in that the position where the optical axis of the optical system provided in the pickup device and the disk come into contact is shifted.

即ち、螺子（９）を締付は或は緩めることによりスキュ
ー角の調整をする場合には、ディスクの）の半径方向（
Ｘ−Ｘ方向）へずれ、螺子（８）を締付は或は緩めるこ
とによりスキュー角の調整をする場合には、ディスク（
Ｄ）の接線方向（Ｙ−Ｙ方向）へずれる。斯様に光軸と
ディスクとの接点がずれると、トラッキングサーボが不
安定となり好ましくない。That is, when adjusting the skew angle by tightening or loosening the screw (9),
When adjusting the skew angle by tightening or loosening the screw (8), use the disc (X-X direction).
D) in the tangential direction (Y-Y direction). If the contact point between the optical axis and the disk shifts in this way, the tracking servo becomes unstable, which is not desirable.

祈る問題は、６ピ一ム方式のピックアップ装置を適用す
る場合、特に問題となる。This problem becomes particularly problematic when a 6-pin pickup device is applied.

（ハ）発明の目的 本発明の目的は、スキュー角調整時にピックアップ装置
の光軸とディスクとの接点がずれるのを防止するように
したスキュー角調整装置を提供するものである。(C) Object of the Invention An object of the present invention is to provide a skew angle adjusting device that prevents the contact point between the optical axis of the pickup device and the disk from shifting when adjusting the skew angle.

（ニ）発明の構成 すくなくともピックアップ装置本体若しくはピックアッ
プ装置本体に収付けられた取付部材に形成された円弧状
凸部（若しくは円弧状透孔）と、この円弧状凸部（若し
くは円弧状透孔）と嵌合し得る円弧状透孔（若しくは円
弧状凸部）が形成された支持部材とより構成する。(d) Structure of the Invention At least an arcuate protrusion (or an arcuate through hole) formed on the pickup device main body or a mounting member housed in the pickup device main body, and the arcuate protrusion (or the arcuate through hole). and a support member formed with an arcuate through hole (or an arcuate protrusion) that can be fitted into the support member.

（ホ）実施例 第４図〜第６図は本発明の一実施例を示す図である。尚
、従来と同一部品については同一図番を附すと共にその
説明を省略する。(E) Embodiment FIGS. 4 to 6 are diagrams showing an embodiment of the present invention. Note that parts that are the same as those in the prior art will be given the same drawing numbers and their explanations will be omitted.

第４図〜第６図において、■（２１）はピックアップ装
置１１［）に形成された円弧状凸部、■は支持部材で、
円弧状凸部■Ｃ！■と嵌合する円弧状透孔＠（財）が形
成されている。（５）■は支持部材のに形成された円弧
状凸部、いは固定部材で、円孤状凸部■（イ）と嵌合す
る円弧状透孔＠（支）が形成されると共にガイドレール
（２）にて案内されるスライダー（３）に固定されてい
る。In FIGS. 4 to 6, ■(21) is an arcuate convex portion formed on the pickup device 11 [), ■ is a support member,
Arc-shaped convex part ■C! An arc-shaped through hole @ (goods) is formed to fit with ■. (5) ■ is an arc-shaped convex portion formed on the support member, or a fixing member, and an arc-shaped through hole @ (support) that fits with the circular convex portion ■ (A) is formed, as well as a guide. It is fixed to a slider (3) guided by a rail (2).

次に、断る装置によるスキュー角調整について説明する
。Next, skew angle adjustment by the refusal device will be explained.

ピックアップ装置（ｌωの円弧状凸部■（２１）を支持
部材＠の円弧状透孔内（財）に沿って、矢印Ｃ方向若し
くけ矢印Ｂ方向へ移動させることによりピックアップ装
置（１ωの光軸のディスク＋Ｄ）に対する傾きを調整す
ることが出来る（第５図参照）。The pickup device (1ω light beam The inclination of the shaft relative to the disc +D) can be adjusted (see Figure 5).

同様に、支持部材＠の円弧状凸部（２５）■を固定部材
面の円弧状透孔＠■に沿って矢印Ｃ方向若しくは矢印り
方向へ移動させることによりピックアップ装置叫の光軸
のディスクの）に対する傾きを調整）することが出来る
（第６図参照）。Similarly, by moving the arc-shaped convex portion (25) ■ of the support member @ in the direction of arrow C or in the direction of arrow C along the arc-shaped through hole @ ■ of the fixed member surface, the optical axis of the pickup device ) can be adjusted (see Figure 6).

又、上記調整を同時に達成すれば、任意の方向へ調整す
ることが出来る。Furthermore, if the above adjustments are achieved at the same time, adjustments can be made in any direction.

ところで、円弧状凸部（至）２１１（ハ）■及び円弧状
透孔＠（財）？２８■けピックアップ装置（１〔の焦点
位置（Ｘｌを中心とする円弧形状としている為、スキュ
ー角を調整する＋９’Ｊにおいても焦点位置の位置ずれ
を生じることがない。又、円弧状凸部はピックアップ装
置本体と一体に形成するだけでなく、ピックアップ装置
本体に収付けられる取付部材に形成するようにしてもよ
い。By the way, the arc-shaped convex part (to) 211 (c) ■ and the arc-shaped through hole @ (goods)? Since the focal position of the 28-inch pickup device (1) has an arc shape with the center at In addition to being formed integrally with the pickup device main body, it may also be formed on a mounting member that is housed in the pickup device main body.

（へ）発明の効果 本発明に依れば、スキュー角を調整する１祭、ピックア
ップ装置の光軸の焦点位置ずれを生じないので、安定な
トラッキングサーボ特性を得ることが出来る。(F) Effects of the Invention According to the present invention, stable tracking servo characteristics can be obtained because the focus position of the optical axis of the pickup device does not shift during the first step of adjusting the skew angle.

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

第１図は従来例を示す平面図、第２図はその正面図、第
３図はその左側面図、第４図は本発明の一実施例を示す
平面図、第５図はその正面図、第６図はその左側面図で
ある。 Ｏｅ・・・ピックアップ装置、ｍ（２ｕｔａｃｅ・・・
円孤状凸部、■・・・支持部材、ＣＩ！３＋（財）＠■
・・・円孤状透孔。 出頓人三洋電機株式会社 代理人弁理士　佐　野　静　犬θ） １区 １５ 味Fig. 1 is a plan view showing a conventional example, Fig. 2 is a front view thereof, Fig. 3 is a left side view thereof, Fig. 4 is a plan view showing an embodiment of the present invention, and Fig. 5 is a front view thereof. , FIG. 6 is a left side view thereof. Oe...Pickup device, m(2utace...
Arc-shaped convex portion, ■...Supporting member, CI! 3+ (goods) @■
...A circular arc-shaped hole. Detonin Sanyo Electric Co., Ltd. Representative Patent Attorney Shizuka Sano Inu θ) 1 Ward 15 Aji

Claims (1)

【特許請求の範囲】[Claims] （１）ディスクとこのディスクに情報信号を記録若しく
はディスクに記録された情報信号を読み取る為の光学系
を備えたピックアップ装置の光軸とのスキュー角を調整
するスキュー角調整装置であって、すくなくとも前記ピ
ックアップ装置本体若しくは前記ピックアップ装置本体
に取付けられた取付部材に形成された円弧状凸部（若し
くは円弧状透孔）と、該円弧状凸部（若しくけ円弧状透
孔）と嵌合し得る円弧状透孔（若しくけ円弧状凸部）が
形成された支持部材とを備えてなる光学装置におけるス
キュー角調整装置。(1) A skew angle adjustment device that adjusts the skew angle between a disc and the optical axis of a pickup device equipped with an optical system for recording information signals on the disc or reading information signals recorded on the disc, and at least A circular convex portion (or circular arc-shaped through hole) formed on the pickup device main body or a mounting member attached to the pickup device main body, and a circular convex portion (or arc-shaped through hole) that fits into the circular convex portion (or arcuate circular through hole). A skew angle adjusting device for an optical device, comprising: a support member having an arc-shaped through hole (or a curved arc-shaped convex portion) formed therein.
JP9918083A 1983-06-02 1983-06-02 Device for adjusting skew angle of optical device Pending JPS59223952A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9918083A JPS59223952A (en) 1983-06-02 1983-06-02 Device for adjusting skew angle of optical device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9918083A JPS59223952A (en) 1983-06-02 1983-06-02 Device for adjusting skew angle of optical device

Publications (1)

Publication Number Publication Date
JPS59223952A true JPS59223952A (en) 1984-12-15

Family

ID=14240451

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9918083A Pending JPS59223952A (en) 1983-06-02 1983-06-02 Device for adjusting skew angle of optical device

Country Status (1)

Country Link
JP (1) JPS59223952A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525742A2 (en) * 1991-07-29 1993-02-03 Sony Corporation Objective lens moving actuator
KR100266048B1 (en) * 1991-07-29 2000-09-15 이데이 노부유끼 Objective lens moving actuator

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262403A (en) * 1975-11-19 1977-05-23 Fuji Telecasting Co Ltd Photoelectric reproducer
JPS54125706A (en) * 1978-03-02 1979-09-29 Valmet Oy Rapid attaching apparatus of air cushioning damper and like of headbox in paper making machine
JPS57195340A (en) * 1981-05-27 1982-12-01 Sony Corp Optical disk player

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5262403A (en) * 1975-11-19 1977-05-23 Fuji Telecasting Co Ltd Photoelectric reproducer
JPS54125706A (en) * 1978-03-02 1979-09-29 Valmet Oy Rapid attaching apparatus of air cushioning damper and like of headbox in paper making machine
JPS57195340A (en) * 1981-05-27 1982-12-01 Sony Corp Optical disk player

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0525742A2 (en) * 1991-07-29 1993-02-03 Sony Corporation Objective lens moving actuator
US5313334A (en) * 1991-07-29 1994-05-17 Sony Corporation Objective lens moving actuator
KR100266048B1 (en) * 1991-07-29 2000-09-15 이데이 노부유끼 Objective lens moving actuator

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