JPS6283219U - - Google Patents

Info

Publication number
JPS6283219U
JPS6283219U JP17370285U JP17370285U JPS6283219U JP S6283219 U JPS6283219 U JP S6283219U JP 17370285 U JP17370285 U JP 17370285U JP 17370285 U JP17370285 U JP 17370285U JP S6283219 U JPS6283219 U JP S6283219U
Authority
JP
Japan
Prior art keywords
focus coil
optical pick
semiconductor laser
synchronization
drive circuit
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
JP17370285U
Other languages
English (en)
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 JP17370285U priority Critical patent/JPS6283219U/ja
Publication of JPS6283219U publication Critical patent/JPS6283219U/ja
Pending legal-status Critical Current

Links

Landscapes

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

Description

【図面の簡単な説明】
第1図は本考案に係るフオーカスコイル駆動回
路を示す図、第2図はその動作波形図である。 はピツクアツプ、4はフオーカスコイル、D
は半導体レーザ、Qはスイツチングトランジ
スタ(半導体レーザ駆動に同期してフオーカスコ
イルに電圧を印加する手段)。

Claims (1)

    【実用新案登録請求の範囲】
  1. 対物レンズを含む被駆動部を中立位置に設定す
    る為のオフセツト電圧を、光学式ピツクアツプの
    半導体レーザ駆動に同期してフオーカスコイルに
    印加する手段を設けたことを特徴とする光学式ピ
    ツクアツプ装置のフオーカスコイル駆動回路。
JP17370285U 1985-11-12 1985-11-12 Pending JPS6283219U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17370285U JPS6283219U (ja) 1985-11-12 1985-11-12

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17370285U JPS6283219U (ja) 1985-11-12 1985-11-12

Publications (1)

Publication Number Publication Date
JPS6283219U true JPS6283219U (ja) 1987-05-27

Family

ID=31111412

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17370285U Pending JPS6283219U (ja) 1985-11-12 1985-11-12

Country Status (1)

Country Link
JP (1) JPS6283219U (ja)

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