JPS6047125U - Optical recording and reproducing device - Google Patents

Optical recording and reproducing device

Info

Publication number
JPS6047125U
JPS6047125U JP13783883U JP13783883U JPS6047125U JP S6047125 U JPS6047125 U JP S6047125U JP 13783883 U JP13783883 U JP 13783883U JP 13783883 U JP13783883 U JP 13783883U JP S6047125 U JPS6047125 U JP S6047125U
Authority
JP
Japan
Prior art keywords
coarse movement
reproducing device
optical recording
objective lens
information track
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
JP13783883U
Other languages
Japanese (ja)
Inventor
片瀬　順弘
雅之 井上
三浦　芳夫
Original Assignee
株式会社日立製作所
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 株式会社日立製作所 filed Critical 株式会社日立製作所
Priority to JP13783883U priority Critical patent/JPS6047125U/en
Publication of JPS6047125U publication Critical patent/JPS6047125U/en
Pending legal-status Critical Current

Links

Landscapes

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

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

第１図は、従来例を示大要部ブロック図、第２図は第１
図の一部詳細図、第３図は、本考案による一実施例を示
す要部ブロック図、第４図はムービングコイルに働く制
動作用の説明図である。 −５・・・対物レンズ、１９・・仏−ピングコイル、２
２・・・スイッチ。Figure 1 is a block diagram of the main parts of a conventional example, and Figure 2 is a block diagram of the main parts of a conventional example.
FIG. 3 is a block diagram of a main part showing an embodiment of the present invention, and FIG. 4 is an explanatory diagram of the braking action acting on the moving coil. -5...Objective lens, 19...French pin coil, 2
2...Switch.

Claims (1)

【実用新案登録請求の範囲】 光源より発せられた光ビームを、対物レンズにより微少
なスポットに収束させて記録ディスクの情報トラック上
に照射する光学手段と、該情報トラックと該スポットと
のずれを検出して、該スポットが常に該情報トラック上
を照射するように、該対物レンズを該記録ディスクのラ
ジアル方向に駆動するために設けられるトラッキングサ
ーボ回路と、これらを含むピックアップを該情報ディス
クのラジアル方向に粗動させるための粗動機構および粗
動送り制御回路とを含む光学式記録再生装置において、
該ビッグアップの粗動送り中には、　　　　　。 対物レンズを駆動するために設けられるムービングコイ
ルの端子をショートするようにしたことを特徴とする光
学式記録再生装置。[Claims for Utility Model Registration] Optical means for converging a light beam emitted from a light source into a minute spot using an objective lens and irradiating it onto an information track of a recording disk, and for adjusting the deviation between the information track and the spot. a tracking servo circuit provided for detecting and driving the objective lens in the radial direction of the recording disk so that the spot always irradiates on the information track; In an optical recording and reproducing device including a coarse movement mechanism for coarse movement in a direction and a coarse movement feed control circuit,
During coarse movement of the big up, An optical recording/reproducing device characterized in that terminals of a moving coil provided for driving an objective lens are short-circuited.
JP13783883U 1983-09-07 1983-09-07 Optical recording and reproducing device Pending JPS6047125U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13783883U JPS6047125U (en) 1983-09-07 1983-09-07 Optical recording and reproducing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13783883U JPS6047125U (en) 1983-09-07 1983-09-07 Optical recording and reproducing device

Publications (1)

Publication Number Publication Date
JPS6047125U true JPS6047125U (en) 1985-04-03

Family

ID=30309471

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13783883U Pending JPS6047125U (en) 1983-09-07 1983-09-07 Optical recording and reproducing device

Country Status (1)

Country Link
JP (1) JPS6047125U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250525A (en) * 1986-04-22 1987-10-31 Kyocera Corp High speed random access method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62250525A (en) * 1986-04-22 1987-10-31 Kyocera Corp High speed random access method

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