JPH03501662A - Connection-free airtight optical disk device - Google Patents

Connection-free airtight optical disk device

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Publication number
JPH03501662A
JPH03501662A JP1509285A JP50928589A JPH03501662A JP H03501662 A JPH03501662 A JP H03501662A JP 1509285 A JP1509285 A JP 1509285A JP 50928589 A JP50928589 A JP 50928589A JP H03501662 A JPH03501662 A JP H03501662A
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Prior art keywords
housing
data storage
optical
storage device
window
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JP1509285A
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Japanese (ja)
Inventor
マター、デニス・リン
ボイル、デイヴィッド・ジェイムズ
イサークソン、マーク
イー、エディ・エイチ・エフ
ムア、ダニエル・ロウエル
コーネリウス、クレイグ・ジェイ
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サンドストランド・データ・コントロール・インコーポレーテッド
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Publication of JPH03501662A publication Critical patent/JPH03501662A/en
Pending legal-status Critical Current

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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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10556—Disposition or mounting of transducers relative to record carriers with provision for moving or switching or masking the transducers in or out of their operative position
    • G11B11/10567—Mechanically moving the transducers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B11/00—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor
    • G11B11/10—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field
    • G11B11/105—Recording on or reproducing from the same record carrier wherein for these two operations the methods are covered by different main groups of groups G11B3/00 - G11B7/00 or by different subgroups of group G11B9/00; Record carriers therefor using recording by magnetic means or other means for magnetisation or demagnetisation of a record carrier, e.g. light induced spin magnetisation; Demagnetisation by thermal or stress means in the presence or not of an orienting magnetic field using a beam of light or a magnetic field for recording by change of magnetisation and a beam of light for reproducing, i.e. magneto-optical, e.g. light-induced thermomagnetic recording, spin magnetisation recording, Kerr or Faraday effect reproducing
    • G11B11/1055—Disposition or mounting of transducers relative to record carriers
    • G11B11/10576—Disposition or mounting of transducers relative to record carriers with provision for moving the transducers for maintaining alignment or spacing relative to the carrier
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/20—Driving; Starting; Stopping; Control thereof
    • G11B19/2009—Turntables, hubs and motors for disk drives; Mounting of motors in the drive
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/02—Containers; Storing means both adapted to cooperate with the recording or reproducing means
    • G11B23/03—Containers for flat record carriers
    • G11B23/0301—Details
    • G11B23/0313—Container cases
    • G11B23/0316—Constructional details, e.g. shape
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B25/00—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus
    • G11B25/04—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card
    • G11B25/043—Apparatus characterised by the shape of record carrier employed but not specific to the method of recording or reproducing, e.g. dictating apparatus; Combinations of such apparatus using flat record carriers, e.g. disc, card using rotating discs
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/14—Reducing influence of physical parameters, e.g. temperature change, moisture, dust
    • G11B33/1446—Reducing contamination, e.g. by dust, debris
    • 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

Landscapes

  • Optical Head (AREA)
  • Rotational Drive Of Disk (AREA)
  • Optical Record Carriers And Manufacture Thereof (AREA)

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

【発明の詳細な説明】 ・盤 〔発明の分野］ この発明は光学円盤装置、特に光学ブロックからブロックおよびカートリッジハ ウジングを経てカートリッジ内に収容された光学円盤にレーザー光線を連接する 光学窓を夫々有する無接続体気密封止された光学円盤カートリッジと気密封止さ れた光学ブロックとを備えたデータ蓄積回復装置に関するものである。[Detailed description of the invention] ・Disc [Field of invention] This invention relates to an optical disc device, particularly an optical block to a block and a cartridge holder. The laser beam is connected to the optical disc housed in the cartridge through using. Connector-free hermetically sealed optical disc cartridges each having an optical window and a hermetically sealed optical disc cartridge. The present invention relates to a data storage and recovery device equipped with an optical block.

［発明の背景］ 光学円盤装置は、データを蓄積する光学円盤媒体と、光学円盤媒体からデータを 読取ったり光学円盤媒体にデータを書込む駆動装置とを有するものが知られてい る。[Background of the invention] An optical disk device uses an optical disk medium to store data and a device to extract data from the optical disk medium. It is known to have a drive device for reading and writing data to an optical disk medium. Ru.

駆動装置は対物レンズを有していて且つアクチュエータを探して追跡して焦点合 せする光学ヘッドと、スピンドルモータと、円盤継ぎ手とを一般的に有している 。塩分の沈堆、水分の凝縮、塵または菌類は、光学円盤媒体に光学通路に沿った レーザ信号出力の過度な損失に基く対物レンズや他の光学装置の表面を腐食また は汚染したりする。更に、追跡および焦点合せアクチュエータに集まる汚染物質 は作動を低下して、一定期間の後にアクチュエータを凍結してしまう、光学円盤 媒体は周囲の汚染物質によって不都合に作用される。光学円盤媒体は、高湿度に 関連した高温度に露呈される時に、容易に希土類元素を腐食する感知層の希土類 元素を一般的に用いている。The drive device has an objective lens and searches for, tracks and focuses the actuator. It generally has an optical head, a spindle motor, and a disk joint. . Salt deposits, moisture condensation, dust, or fungi are removed from the optical disk medium along the optical path. Corrosion or corrosion of the surfaces of objective lenses and other optical equipment may result in excessive loss of laser signal power. can be contaminated. Additionally, contaminants that collect on the tracking and focusing actuators The optical disc reduces the actuation and freezes the actuator after a period of time. The medium is adversely affected by surrounding contaminants. Optical disk media is exposed to high humidity. The rare earths in the sensing layer easily corrode the rare earths when exposed to the associated high temperatures. Elements are commonly used.

この様な汚染物質は成る利用において容認できないデータ誤差の原因となる。Such contaminants can cause unacceptable data errors in certain applications.

［発明の要約］ この発明に従って、上述した様に従来の光学円盤装置の欠点が解決される。この 発明の光学装置は、塩分、霧、湿度、砂、塵および菌類から光学円盤と光学部材 と共に追跡焦点合せアクチュエータを保護するために気密封止された光学円盤カ ートリッジと、別個の気密封止された光学ブロックとを用いている。[Summary of the invention] According to the invention, the drawbacks of conventional optical disk devices as mentioned above are solved. this The optical device of the invention protects optical discs and optical members from salt, fog, humidity, sand, dust and fungi. Hermetically sealed optical disc cover to protect the tracking focusing actuator along with A separate hermetically sealed optical block is used.

特に、光学円盤カートリッジはハウジング内のスピンドル軸に取付けられたデー タ蓄積用の光学円盤を有した気密封止されたハウジングを備えている０回転子磁 石は、スピンドル駆動コイルによってハウジングに外部から作用される駆動磁場 に応答して軸と光学円盤を回転する気密封止されたハウジング内のスピンドル軸 に連結されている。ハウジングの壁に封止された光学窓は、光学円盤からデータ を読取り、消去したり或は光学円盤に書込んだり、ハウジング封止を保持するよ うにレーザ光線がハウジング窓を通過できるようにする。In particular, optical disc cartridges are equipped with data mounted on the spindle shaft inside the housing. Zero rotor magnet with hermetically sealed housing with optical disk for data storage The stone is driven by a driving magnetic field applied externally to the housing by a spindle driving coil. spindle shaft in a hermetically sealed housing that rotates the shaft and optical disk in response to is connected to. An optical window sealed in the wall of the housing collects data from the optical disc. to read, erase, or write to the optical disc and to maintain the housing seal. Allow the laser beam to pass through the housing window.

カートリッジハウジングに外部発生される駆動磁場を作用するスプリットモータ は機械的連結や、光学円盤カートリッジに対する電気的接続を必要としない、更 に、モータの熱放散は光学円盤カートリッジの外側で行われる、光学円盤カート リッジの書込み消去作用を制御するよう用いられるバイアス磁石は光学円盤の外 部に設けられるが、スプリットモータの様にバイアス磁石は機械的連結や光学円 盤カートリッジへの電気的接続を必要としない。Split motor that applies an externally generated driving magnetic field to the cartridge housing is a replacement that requires no mechanical coupling or electrical connection to the optical disk cartridge. In the optical disc cart, the heat dissipation of the motor is done outside the optical disc cartridge. The bias magnet used to control the write/erase action of the ridge is located outside the optical disc. However, like a split motor, the bias magnet is not connected mechanically or optically. No electrical connection to the disc cartridge is required.

カートリッジハウジングは高“ｇ”情況に光学円盤を支持するよう必要な剛性を 備えた箱状構造である。更に、スピンドル軸は、もし光学円盤装置が航空機に用 いられるならば、高“ｇ”力と種々な取付高度を受ける時に、光学円盤の確実な しっかりした角度および軸方向制御を確かにするよう箱状ハウジングの２つの半 体の各々に強固に支持されて且つ固着される。The cartridge housing provides the necessary rigidity to support the optical disc in high “g” situations. It has a box-like structure. Furthermore, the spindle axis should be If possible, ensure that the optical disc is secure when subjected to high “g” forces and various mounting heights. The two halves of the box-like housing ensure tight angular and axial control. It is strongly supported and fixed to each body.

光学ブロックはレーザ光線がハウジング窓を通過できるようにハウジングの壁に 封止された光学窓を有する気密封止されたハウジングを備えている。光学ブロッ クの光学窓は、光学ブロックがらのレーザが光学円盤の総ての必要な領域に達す ることが出来るように光学円盤カートリッジの光学窓と重なっている。光学円盤 の特定のトラックにレーザの焦点を合わせて追跡するための光学装置とアクチュ エータは光学ブロックの気密封止されたハウジングにまた収容されている。第１ の実施例において、光学円盤カートリッジ内に設けられた光学窓に関する追跡お よび焦点合せ装置を移動するシークモータは光学ブロックの気密封止されたハウ ジング内に収容されている。The optical block is attached to the wall of the housing to allow the laser beam to pass through the housing window. It includes a hermetically sealed housing with a sealed optical window. optical block The optical window in the optical block allows the laser inside the optical block to reach all the necessary areas of the optical disc. It overlaps with the optical window of the optical disk cartridge so that it can be optical disc optics and actuators to focus and track the laser on a specific track of the The eta is also housed in a hermetically sealed housing of the optical block. 1st In this embodiment, the tracking and The seek motor that moves the focuser and focuser is housed in a hermetically sealed housing of the optical block. It is housed within the housing.

第２の実施例においては、併し乍ら、シークモータは光学ブロックの気密封止さ れたハウジングの外側に設けられている。In the second embodiment, however, the seek motor is hermetically sealed in the optical block. located on the outside of the housing.

この発明のこれ等の目的と他の目的や利点および新規な特長はこの発明の図示実 施例の詳細と共に以下の説明および図面から尚一層十分に理解されよう。These and other objects, advantages, and novel features of this invention are disclosed in the illustrated embodiments of this invention. It will be better understood from the following description and drawings, together with the details of the embodiments.

［図面の簡単な説明］ 第１図はこの発明の無接続体気密光学円盤装置のブロック図、 第２図は第１図に示される光学円盤カートリッジの分解図、 第３区は第１図に示される光学円盤カートリッジ、バイアス磁石、スピンドル駆 動コイルおよびバイアス磁石コイル組立体の部分断面図、 第４図は第３図に示される様に光学円盤カートリッジに収容されるスピンドルモ ータ部材の拡大断面図、第５図は第１図に示される光学ブロックの一実施例のブ ロック図、 第６図は光学ブロックの第２の実施例のブロック図、である。[Brief explanation of the drawing] FIG. 1 is a block diagram of a connectionless airtight optical disk device of the present invention. Figure 2 is an exploded view of the optical disc cartridge shown in Figure 1; The third section consists of the optical disc cartridge, bias magnet, and spindle drive shown in Figure 1. a partial cross-sectional view of the moving coil and bias magnet coil assembly; Figure 4 shows the spindle model housed in the optical disc cartridge as shown in Figure 3. FIG. 5 is an enlarged sectional view of the optical block of the optical block shown in FIG. rock diagram, FIG. 6 is a block diagram of a second embodiment of the optical block.

［推奨実施例の説明］ 第１図に示される様に、この発明の無接続体気密光学円盤装置は気密封止された 光学円盤カートリッジ１０と気密封止された光学ブロック１２とを有し、光学円 盤カートリッジ１０と光学ブロック１２とのハウジングの気密障壁を通過するレ ーザ光線を接続するための各光学特性の高張力ガラスの光学窓１４．１６を夫々 有している。[Description of recommended examples] As shown in FIG. 1, the connectionless airtight optical disk device of the present invention is hermetically sealed. It has an optical disk cartridge 10 and an optical block 12 which is hermetically sealed. The lens passing through the airtight barrier of the housing of the disc cartridge 10 and the optical block 12 Optical windows 14 and 16 of high-strength glass of each optical property for connecting the laser beams respectively. have.

光学窓１４．１６は、光学ブロック１２からのレーザ光線が光学円盤カートリッ ジ１０に収容された光学円盤１８の総ての必要な領域に達することが出来るよう に互いに重なっている。The optical windows 14,16 allow the laser beam from the optical block 12 to pass through the optical disc cartridge. so as to be able to reach all the necessary areas of the optical disc 18 housed in the cage 10. overlap each other.

気密封止された光学円盤カートリッジ１０は多数の放射方向トラックにデータを 蓄積するための光学円盤１８と、第２図乃至第４図に示される様に光学円盤１８ を回転するためのスピンドルモータ半体だけを有している。A hermetically sealed optical disc cartridge 10 stores data in multiple radial tracks. an optical disk 18 for storage; and an optical disk 18 as shown in FIGS. It has only half a spindle motor to rotate.

光学円盤カートリッジ１０に収容されたスピンドルモータ半体を作動するための 駆動磁場は、光学円盤カートリッジ１０の外側に配置されたスピンドル駆動コイ ル２０によって発生される。光学円盤装置の書込み消去作用を制御するバイアス 磁石２２は光学円盤カートリッジ１０の外部に設けられる。特に、バイアス磁石 ２２は光学窓１４と反対側の光学円盤カートリッジ１０のハウジング２３に形成 されたｆｆ１２４内に受けられる。駆動コイル２０からの駆動磁場１８とバイア ス磁石２２がらのバイアス磁場は光学円盤カートリッジ１０のハウジング２３を 介して接続されるので、何等機械的リンクや電気的接続を必要とせず、光学円盤 カートリッジ１０を無接続体どするよう出来る。更に、スピンドル駆動コイル２ ０によって生じられる熱は光学円盤カートリッジ１０の外に有る。for operating the spindle motor half housed in the optical disk cartridge 10. The driving magnetic field is provided by a spindle driving coil located outside the optical disc cartridge 10. 20. Bias that controls the writing and erasing action of optical disk devices The magnet 22 is provided outside the optical disc cartridge 10. In particular, bias magnets 22 is formed in the housing 23 of the optical disc cartridge 10 on the opposite side from the optical window 14. It can be received within ff124. Drive magnetic field 18 from drive coil 20 and vias The bias magnetic field from the magnet 22 is applied to the housing 23 of the optical disk cartridge 10. optical discs without the need for any mechanical links or electrical connections. The cartridge 10 can be made into an unconnected body. Furthermore, the spindle drive coil 2 The heat generated by 0 is outside the optical disc cartridge 10.

気密封止された光学円盤カートリッジ１０が光学円盤１８とスピンドルモータの 半休だけを包含するために、光学円盤カートリッジ１０は小型で且つ安価である 。A hermetically sealed optical disk cartridge 10 connects the optical disk 18 and the spindle motor. The optical disk cartridge 10 is small and inexpensive since it only covers half a day. .

気密封止された光学ブロック１２は、対物レンズやレーザや焦点合わせ追跡アク チュエータの様な光学装置を有する。第１図および第５図に示される第１の実施 例において、光学ブロック１２は光学窓１６に沿って直線的に対物レンズを動か すように配置されたシークモータを有するので、光学円盤カートリッジ１０内に 収容された光学円盤１８の異なったトラックが接近できる。第６図に示される第 ２の実施例においては、シークモータは光学ブロック１２の外側に配置されてい る。The hermetically sealed optical block 12 includes an objective lens, laser and focusing tracking actuator. It has an optical device like a tuator. The first implementation shown in FIGS. 1 and 5 In the example, optical block 12 moves the objective lens linearly along optical window 16. Since the seek motor is arranged so that the Different tracks of the housed optical disc 18 are accessible. The section shown in Figure 6 In the second embodiment, the seek motor is located outside the optical block 12. Ru.

第２図に詳しく図示される様に、光学円盤カートリッジ１２は、窩“ｇ”情況に て光学円ｆ１１１８を支持するよう必要な剛性を設ける箱状構造を形成するよう に互いに封止された頂部ハウジング部材２６と底部ハウジング部材２８とから形 成されるハウジング２３を有する。頂部および底部ハウジング部材２６．２８は アルミニウムから造られて、幅広い温度範囲に互って抵抗できる弾性エポキシ材 料３０によってアルミニウムの頂部および底部ハウジング部材２６．２８間に気 密ガスケットを形成している。頂部ハウジング部材２６と光学窓１４を夫々形成 する熱的に不一致の材料のアルミニウムとガラスの間に気密封止を設置けるよう に、光学窓１４は常温加硫（ＲＴＶ）のベッドや適宜な接着剤に取付けられてい る。光学円盤カートリッジ１２の取扱いの際に、指紋や同様なものから光学窓１ ４を保護するように頂部ハウジング部材２６内の光学窓１４に対して滑動できる 窓カバー３２が設けられる。As illustrated in detail in FIG. to form a box-like structure that provides the necessary rigidity to support the optical circle f1118. Shaped from a top housing member 26 and a bottom housing member 28 sealed to each other. It has a housing 23 made of The top and bottom housing members 26.28 are Constructed from aluminum, a resilient epoxy material that can withstand a wide temperature range The material 30 creates an air gap between the aluminum top and bottom housing members 26 and 28. Forms a tight gasket. forming the top housing member 26 and the optical window 14, respectively; to create a hermetic seal between the thermally mismatched materials aluminum and glass. In this case, the optical window 14 is attached to a room temperature vulcanization (RTV) bed or a suitable adhesive. Ru. When handling the optical disc cartridge 12, please be careful not to damage the optical window 1 from fingerprints or similar objects. 4 can be slid relative to the optical window 14 in the top housing member 26 to protect the optical window 14. A window cover 32 is provided.

第２図乃至第５図に示される様に、光学円盤１８のためのスピンドル軸組立体は スピンドル軸３４を有している。スピンドル軸３４は箱状構造の頂部ハウジング 部材２６と底部ハウジング部材２８の間にしつかり支持され、高“ｇ″力と種々 の取付高度を受ける時に光学円盤１８の堅実で強固な角度および軸方向制御を確 実にするようにボス３６と組合せ軸受３８によってスピンドル軸３４に光学円盤 １８が固着されている。特に、一対のねじ４０．４２はスピンドル軸３４を頂部 ハウジング部材２６と底部ハウジング部材２８に夫々固着している。光学円盤の 不釣合いを解消して所要のデータ転換割合を達成するよう高回転数を可能にすべ く十分な剛性を設けるよう組合せ軸受３８によってスピンドル軸３４に光学円盤 １おける非常に正確な制御を設けるように組合せ軸受３８が好適に適合される。As shown in FIGS. 2-5, the spindle shaft assembly for the optical disc 18 is It has a spindle shaft 34. The spindle shaft 34 has a top housing with a box-like structure. is firmly supported between member 26 and bottom housing member 28 and is resistant to high "g" forces and various Ensures solid and robust angular and axial control of the optical disc 18 when subjected to mounting heights of The optical disk is attached to the spindle shaft 34 by the boss 36 and the combination bearing 38 so as to 18 is fixed. In particular, a pair of screws 40, 42 attach the spindle shaft 34 to the top. They are secured to housing member 26 and bottom housing member 28, respectively. optical disk Everything is done to allow high rotational speeds to eliminate imbalances and achieve the desired data conversion rate. An optical disc is attached to the spindle shaft 34 by a combination bearing 38 to provide sufficient rigidity. A combination bearing 38 is suitably adapted to provide very precise control over the motor.

光学円盤１８は熱磁気消去可能な光学円盤が好適である。光学円盤１８はＲＴＶ 　（常温加ｉｔ）の様な接着剤によってボス３６に固着される。ボス３６の反対 側に固着された回転子磁気リング４４は希土類酸化物の磁石が好適で、モータ磁 気通路を完成して回転子磁石４４からの迷走磁場を含むように磁気分流材料から ボス３６が造られる。非磁性ステンレス鋼の様な非磁性材料の挿入体４６が底部 ハウジング部材２８の孔４８内に封止される。Optical disk 18 is preferably an optical disk that can be thermomagnetically erased. Optical disk 18 is RTV It is fixed to the boss 36 with an adhesive such as (heated at room temperature). Opposite of boss 36 The rotor magnetic ring 44 fixed to the side is preferably a rare earth oxide magnet, and the motor magnetic ring 44 is preferably a rare earth oxide magnet. from the magnetic shunt material to complete the air passage and contain the stray magnetic field from the rotor magnets 44. Boss 36 is built. An insert 46 of non-magnetic material, such as non-magnetic stainless steel, is located at the bottom. It is sealed within the bore 48 of the housing member 28.

駆動磁場１９が回転子磁石４４に連結される領域に設けられた非磁性挿入体４６ は連結部分の渦電流損失を低減して、スピンドルモータの効率を改善するように 為す。a non-magnetic insert 46 provided in the region where the drive magnetic field 19 is coupled to the rotor magnets 44; to reduce eddy current loss in the connecting parts and improve the efficiency of the spindle motor. Do it.

駆動磁場１９の存在にて、回転子磁石４４は一緒に回転するよう固着されたボス ３６と光学円盤１８を回転するように為す。In the presence of the driving magnetic field 19, the rotor magnets 44 rotate with the fixed bosses. 36 and the optical disc 18 are made to rotate.

第４図に詳細に示される様に、スピンドル軸３４どボス組立体を予負荷するよう にばね座金とシム４８が設けられる。スピンドル軸３４の頭部５２と組合せ軸受 ３８の間に配置されたシム５０は大きな調節を設けている。Preloading the spindle shaft 34 and boss assembly as shown in detail in FIG. A spring washer and shim 48 are provided. Head 52 of spindle shaft 34 and combination bearing Shims 50 located between 38 provide significant adjustment.

更に、０リング５４．５６はスピンドル軸３４と頂部ハウジング部材２６の間、 スピンドル軸３４と底部ハウジング部材２８内に設けられた挿入体４６との間に 夫々封止を設けている。Additionally, the O-rings 54,56 are located between the spindle shaft 34 and the top housing member 26; between the spindle shaft 34 and an insert 46 provided within the bottom housing member 28. A seal is provided for each.

バイアス軸受２２は、磁石２２を溝２４内に受けるように出来る駆動ハウジング （図示しない）の一部に一対の球軸受５８．６０によって取付けられている。バ イアス磁石２２の溝２４と光学窓１４は半径方向に沿って光−学円盤１８に隣接 して配置されているので、データを光学円盤１８の各放射方向トラックから読取 ったり、トラックん書込んだり或は消去するように出来る。バイアス磁性コイル と分流組立体によって制御されるようバイアス磁石２２の方向に基いて、光学円 盤１８は固定記憶装置（ＲＯＭ）、書込記憶装置（ＷＯＲＭ）または全読取書込 消去記憶装置のように作動できる。固定記憶（ＲＯＭ）作用において、バイアス 磁石２２が中立位置に錠止され、この錠止位置にては同等バイアス磁場が作用さ れなかったり或はバイアス磁石２２が全く除去されるので、書込消去前作用が抑 制される。書込記憶（ＷＯＲＭ）作用においては、バイアス磁石２２は書込バイ アス極位置に錠止されたり或は中立および書込バイアス極位置間に回転すべく出 来るので、消去作用だけが阻止される。全読取書込消去記憶作用において、バイ アス磁石２２は中立、書込バイアス、消去バイアス極位置間を回転するよう出来 る。電磁コイルが消磁能力を設ける上述した様に書込消去作用を制御するように 棒磁石２２の代わりに電磁コイルを使用できるのが注意される。Bias bearing 22 includes a drive housing adapted to receive magnet 22 within groove 24. (not shown) by a pair of ball bearings 58,60. Ba The groove 24 of the ear magnet 22 and the optical window 14 are adjacent to the optical disc 18 along the radial direction. so that data can be read from each radial track of the optical disc 18. Tracks can be written or erased. bias magnetic coil and the direction of the bias magnet 22 as controlled by the flow shunt assembly. The board 18 is a fixed memory (ROM), a write memory (WORM), or a read/write It can act like an erasable storage device. Bias in fixed memory (ROM) The magnet 22 is locked in a neutral position, and an equivalent bias magnetic field is applied in this locked position. Because the bias magnet 22 is not removed or removed altogether, the pre-write/erase effect is suppressed. be controlled. In a write-to-memory (WORM) operation, the bias magnet 22 It can be locked in the positive pole position or rotated between the neutral and write bias pole positions. As it comes, only the elimination action is blocked. In all read/write/erase storage operations, the byte The magnet 22 is configured to rotate between neutral, write bias, and erase bias pole positions. Ru. The electromagnetic coil provides degaussing capability to control the write/erase action as described above. It is noted that an electromagnetic coil can be used instead of the bar magnet 22.

第５図に示される様に、第１の実施例の光学ブロック１２は、対物レンズ６４と 焦点合せ追跡アクチュエータ６６とレーザおよび検出器とを待った光学ヘッド６ ８、およびシークモータ７０を収容する気密封止されたハウジング６２を有して いる。シークモータ７０は、光学円盤１８の種々なトラックのデータに接近する よう光学窓１６に沿って直線的に光学ヘッド６８を動かす。第６図に示される様 に、第２の実施例では、光学ブロック１２は、対物レンズ７４と焦点合せ追跡ア クチュエータ７６とレーザおよび検出器だけを収容する気密封止されたハウジン グ７２を有している。シークモータ８０は外部に配置されていてシークアクチュ エータ８２によって光学ブロックハウジング７２に連結されている。第１および 第２の両実施例において、光学装置および焦点合せ追跡アクチュエータは汚染物 質から保護されるように気密ハウジング６２．７２内に収容される。As shown in FIG. 5, the optical block 12 of the first embodiment includes an objective lens 64 and Optical head 6 with focus tracking actuator 66 and laser and detector 8, and a hermetically sealed housing 62 housing the seek motor 70. There is. The seek motor 70 approaches data on various tracks of the optical disk 18. The optical head 68 is moved linearly along the optical window 16. As shown in Figure 6 In the second embodiment, the optical block 12 includes an objective lens 74 and a focusing tracking assembly. Hermetically sealed housing containing only the actuator 76, laser and detector 72. The seek motor 80 is located outside and acts as a seek actuator. eta 82 to optical block housing 72 . 1st and In both second embodiments, the optical device and focus tracking actuator are free from contaminants. It is housed in an airtight housing 62, 72 so as to be protected from damage.

この発明の無接続体気密光学装置は敏感な部材を周囲から、特に塩分や霧、湿度 、砂、塵および菌類等から保護すると共に、小型で安価な光学円盤カートリッジ １０を設けている。The connectionless airtight optical device of this invention protects sensitive components from the surrounding environment, especially salt, fog, and humidity. A small and inexpensive optical disk cartridge that protects from sand, dust, fungi, etc. There are 10.

この発明の多くの変更と変形が上述の技術の範囲内で可能である。従って、添付 の請求の範囲内にてこの発明が上述した以上に実施できることが理解されるべき である。Many modifications and variations of this invention are possible within the scope of the techniques described above. Therefore, attached It is to be understood that the invention may be practiced beyond that described above within the scope of the claims. It is.

補正書の翻訳文提出書く特許法第１８４条の７第１項）平成　２年　５月２９日Translation of written amendment submitted (Article 184-7, Paragraph 1 of the Patent Act) May 29, 1990

Claims (23)

【特許請求の範囲】[Claims] １．気密封止されたハウジング、 該ハウジング内に回転可能に取付けられたデータ蓄積用の光学円盤、 該ハウジングの外部に作用される駆動磁場に応答して光学円盤を回転すべくハウ ジング内の光学円盤に連結される装置、 ハウジング窓を通って光学円盤へレーザ光線が通過できるようにハウジングの壁 に封止された光学窓、を備えたデータ蓄積装置。1. hermetically sealed housing, an optical disc for data storage rotatably mounted within the housing; A housing for rotating the optical disc in response to a drive magnetic field applied externally to the housing. a device coupled to the optical disc within the ring; The walls of the housing allow the laser beam to pass through the housing window to the optical disc. A data storage device with an optical window, sealed in. ２．光学円盤がスピンドル軸にしっかりと固着されて、スピンドル軸がハウジン グに強固に固着された請求項１記載のデータ蓄積装置。2. The optical disk is firmly fixed to the spindle shaft, and the spindle shaft is attached to the housing. 2. The data storage device of claim 1, wherein the data storage device is firmly attached to a cable. ３．ハウジングは頂部ハウジング部材と底部ハウジング部材とを有し、スピンド ル軸は頂部および底部ハウジング部材に強固に固着されている請求項２記載のデ ータ蓄積装置。3. The housing has a top housing member and a bottom housing member and has a spindle. 3. The device of claim 2, wherein the shaft is rigidly secured to the top and bottom housing members. data storage device. ４．回転装置はハウジングの壁を介して回転子磁石に連結された外部駆動磁場に 応答する回転子磁石を有する請求項１記載のデータ蓄積装置。4. The rotating device is connected to an external driving magnetic field coupled to the rotor magnets through the walls of the housing. 2. The data storage device of claim 1, further comprising a responsive rotor magnet. ５．ハウジングは駆動磁場を回転子磁石に接続するためのハウジング壁に封止さ れた非磁性部材を有している請求項４記載のデータ蓄積装置。5. The housing is sealed to the housing wall for connecting the drive magnetic field to the rotor magnets. 5. The data storage device according to claim 4, further comprising a non-magnetic member. ６．光学窓はハウジングの第１の壁に封止され、該ハウジングは第１の壁に対向 した第２の壁を有していてバイアス磁石に適合するよう該窓に対向した第２の壁 に溝が形成されている請求項１記載のデータ蓄積装置。6. an optical window is sealed to a first wall of the housing, the housing facing the first wall; a second wall opposite the window to accommodate the bias magnet; 2. The data storage device according to claim 1, wherein a groove is formed in the data storage device. ７．光学円盤は熱磁性光学円盤である請求項１記載のデータ蓄積装置。7. 2. A data storage device according to claim 1, wherein the optical disc is a thermomagnetic optical disc. ８．気密封止されたハウジング、 該ハウジング内のスピンドル軸に取付けられたデータ蓄積用の光学円盤、 該ハウジングの外部に作用される駆動磁場に応答してスピンドル軸と光学円盤を 回転すべくハウジング内のスピンドル軸に連結された回転子磁石、 ハウジング窓を通って光学円盤にレーザ光線が通過できるようにハウジングの壁 に封止された光学窓、を備えたデータ蓄積装置。8. hermetically sealed housing, an optical disc for data storage mounted on the spindle shaft within the housing; The spindle axis and the optical disk are moved in response to a driving magnetic field applied externally to the housing. a rotor magnet coupled to a spindle shaft within the housing for rotation; The walls of the housing allow the laser beam to pass through the housing window and into the optical disk. A data storage device with an optical window, sealed in. ９．ハウジングは頂部ハウジング部材と底部ハウジング部材とを有し、スピンド ル軸は頂部および底部ハウジング部材に強固に固着されている請求項８記載のデ ータ蓄積装置。9. The housing has a top housing member and a bottom housing member and has a spindle. 9. The device of claim 8, wherein the shaft is rigidly secured to the top and bottom housing members. data storage device. １０．回転子磁石が固着されるボスと、該ボスをスピンドル軸に連結する一対の 軸受とを備えた請求項８記載のデータ蓄積装置。10. A boss to which the rotor magnet is fixed, and a pair of bosses connecting the boss to the spindle shaft. 9. The data storage device according to claim 8, further comprising a bearing. １１．軸受が合致している請求項１０記載のデータ蓄積装置。11. 11. The data storage device of claim 10, wherein the bearings are matched. １２．ボスが磁気分路を形成している請求項１０記載のデータ蓄積装置。12. 11. The data storage device of claim 10, wherein the boss forms a magnetic shunt. １３．ハウジングは駆動磁場を回転子磁石に連結するための回転子磁石に隣接し たハウジングの壁の少なくとも一部を形成している請求項８記載のデータ蓄積装 置。13. The housing is adjacent to the rotor magnets for coupling the drive magnetic field to the rotor magnets. 9. The data storage device according to claim 8, wherein the data storage device forms at least a part of a wall of the housing. Place. １４．光字窓はハウジングの第１の壁に封止され、ハウジングは第１の壁に対向 した第２の壁を有していてバイアス磁石に適合するように該窓に対向した第２の 壁に溝がある請求項８記載のデータ蓄積装置。14. The optical window is sealed to the first wall of the housing, and the housing is opposite the first wall. a second wall opposite the window and adapted to accommodate the bias magnet; 9. A data storage device according to claim 8, wherein the wall has a groove. １５．光字円盤が熱磁性光学円盤である請求項８記載のデータ蓄積装置。15. 9. The data storage device according to claim 8, wherein the optical disc is a thermomagnetic optical disc. １６．第１の気密封止されたハウジング、データを蓄積するための複数個のトラ ックを有すると共に該第１のハウジング内に回転すべく取付けられた光学円盤、 光学円盤を回転すべく該第１のハウジング内の光学円盤に連結された装置、 第１のハウジング窓を通って光学円盤にレーザ光線が通過できるように該第１の ハウジングの壁に封止された第１の光学窓、 第２の気密封止されたハウジング、 レーザ光線が第２のハウジング窓を通過できるように第２のハウジングの壁に封 止された第２の光学窓、レーザを第１および第２の窓を通って焦点合わせするた めに第２の封止されたハウジング内に取付けられた装置、 焦点合わせ装置を第１の光学窓に対して移動するための装置、 を備えた光学円盤装置。16. a first hermetically sealed housing; multiple tracks for storing data; an optical disk having a lock and mounted for rotation within the first housing; a device coupled to the optical disc within the first housing to rotate the optical disc; the first housing window to allow passage of the laser beam to the optical disc through the first housing window; a first optical window sealed in the wall of the housing; a second hermetically sealed housing; A seal is placed on the wall of the second housing to allow the laser beam to pass through the second housing window. a stopped second optical window for focusing the laser through the first and second windows; a device mounted within a second sealed housing for; a device for moving the focusing device relative to the first optical window; Optical disk device equipped with. １７．回転装置はハウジング内の光学円盤に連結された回転子磁石を有し、回転 子磁石はハウジングに対して外部に作用される駆動磁場に応答している請求項１ ６記載の光学円盤装置。17. The rotating device has a rotor magnet coupled to an optical disc within the housing, which rotates Claim 1: The child magnet is responsive to a drive magnetic field applied externally to the housing. 6. The optical disk device according to 6. １８．駆動磁場を回転子磁石に連結するためにハウジングの壁に封止された磁器 挿入体を有している請求項１７記載の光学円盤装置。18. Porcelain sealed in the housing wall to couple the drive field to the rotor magnets 18. The optical disc device according to claim 17, further comprising an insert. １９．光学窓がハウジングの第１の壁に封止され、ハウジングが第１の壁に対向 した第２の壁を有していてバイアス磁石に適合するよう該窓に対向した第２の壁 に溝が形成されている請求項１６記載のデータ蓄積装置。19. an optical window is sealed to the first wall of the housing, the housing facing the first wall; a second wall opposite the window to accommodate the bias magnet; 17. The data storage device according to claim 16, wherein a groove is formed in the data storage device. ２０．光学円盤が熱磁性光学円盤である請求項１８記載のデータ蓄積装置。20. 19. The data storage device of claim 18, wherein the optical disc is a thermomagnetic optical disc. ２１．第１の光学窓が第２の光学窓に重なっている請求項１６記載のデータ蓄積 装置。21. 17. Data storage according to claim 16, wherein the first optical window overlaps the second optical window. Device. ２２．可動装置が第２のハウジングの外側に連結されている請求項１６記載のデ ータ蓄積装置。22. 17. The device of claim 16, wherein the movable device is coupled to the outside of the second housing. data storage device. ２３．可動装置が第２のハウジング内に収容されている請求項１６記載のデータ 装置。23. Data according to claim 16, wherein the mobile device is housed in the second housing. Device.
JP1509285A 1988-09-29 1989-08-28 Connection-free airtight optical disk device Pending JPH03501662A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US25134688A 1988-09-29 1988-09-29
US251,346 1988-09-29

Publications (1)

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JPH03501662A true JPH03501662A (en) 1991-04-11

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JP1509285A Pending JPH03501662A (en) 1988-09-29 1989-08-28 Connection-free airtight optical disk device

Country Status (5)

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EP (1) EP0388452A1 (en)
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CN (1) CN1041471A (en)
IL (1) IL91514A0 (en)
WO (1) WO1990003642A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0250336A (en) * 1988-08-11 1990-02-20 Nikon Corp Compatible overwrite type magneto-optical recording device
JP3364969B2 (en) * 1992-12-18 2003-01-08 ソニー株式会社 Magneto-optical disk drive
KR100788647B1 (en) * 2001-09-12 2007-12-26 삼성전자주식회사 Disc cartridge
JP2005158209A (en) * 2003-11-28 2005-06-16 Sony Corp Tape cartridge

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JPS6034753B2 (en) * 1977-06-02 1985-08-10 株式会社リコー Temperature control method for heating recording sheet
JPS56137555A (en) * 1980-03-27 1981-10-27 Sony Corp Optical disc cassette and disc driving method
US4542495A (en) * 1983-10-31 1985-09-17 Storage Technology Partners Ii Hermetically sealed disk cartridge with adjustable optical window
JPH0664821B2 (en) * 1984-12-30 1994-08-22 オリンパス光学工業株式会社 Recording medium loading device

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WO1990003642A1 (en) 1990-04-05
CN1041471A (en) 1990-04-18
IL91514A0 (en) 1990-04-29

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