JPH0159915U - - Google Patents

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Publication number
JPH0159915U
JPH0159915U JP15399087U JP15399087U JPH0159915U JP H0159915 U JPH0159915 U JP H0159915U JP 15399087 U JP15399087 U JP 15399087U JP 15399087 U JP15399087 U JP 15399087U JP H0159915 U JPH0159915 U JP H0159915U
Authority
JP
Japan
Prior art keywords
objective lens
lens
error signal
pickup device
focus
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
JP15399087U
Other languages
English (en)
Other versions
JPH0610489Y2 (ja
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 filed Critical
Priority to JP1987153990U priority Critical patent/JPH0610489Y2/ja
Publication of JPH0159915U publication Critical patent/JPH0159915U/ja
Application granted granted Critical
Publication of JPH0610489Y2 publication Critical patent/JPH0610489Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

Description

【図面の簡単な説明】
第１図は本考案の光ピツクアツプ装置の一実施
例を示す図、第２図は実施例の駆動回路を示す図
、第３図は他の実施例の駆動回路を示す図である
。 １……ピツクアツプ、１ａ……対物レンズ、２
……案内レール、３，４……支持部材、５……案
内板、６……高さ制御モータ、７……高さ駆動ネ
ジ、８……角度制御モータ、９……角度駆動ネジ
、１１……焦点誤差信号発生部、１２……サーボ
アンプ、１３……アクチユエータ、１４……ロー
パスフイルタ、１５……駆動アンプ、１６……角
度検出部、１７……チルトサーボアンプ、１８…
…加算器。

Claims (1)

  1. 【実用新案登録請求の範囲】 焦点誤差信号に基づいてアクチユエータにより
    対物レンズを光軸方向に駆動して焦点制御を行う
    ピツクアツプと、 上記ピツクアツプを保持するとともに上記アク
    チユエータの駆動電流の直流成分により上記ピツ
    クアツプを対物レンズの移動方向に移動させる駆
    動手段とを備えたことを特徴とする光ピツクアツ
    プ装置。
JP1987153990U 1987-10-09 1987-10-09 光ピックアップ装置 Expired - Lifetime JPH0610489Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1987153990U JPH0610489Y2 (ja) 1987-10-09 1987-10-09 光ピックアップ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1987153990U JPH0610489Y2 (ja) 1987-10-09 1987-10-09 光ピックアップ装置

Publications (2)

Publication Number Publication Date
JPH0159915U true JPH0159915U (ja) 1989-04-14
JPH0610489Y2 JPH0610489Y2 (ja) 1994-03-16

Family

ID=31430318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1987153990U Expired - Lifetime JPH0610489Y2 (ja) 1987-10-09 1987-10-09 光ピックアップ装置

Country Status (1)

Country Link
JP (1) JPH0610489Y2 (ja)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58131431U (ja) * 1982-02-26 1983-09-05 富士通株式会社 光デイスク装置
JPS6229634U (ja) * 1985-08-02 1987-02-23

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58131431U (ja) * 1982-02-26 1983-09-05 富士通株式会社 光デイスク装置
JPS6229634U (ja) * 1985-08-02 1987-02-23

Also Published As

Publication number Publication date
JPH0610489Y2 (ja) 1994-03-16

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