JPH0481809B2 - - Google Patents

Info

Publication number
JPH0481809B2
JPH0481809B2 JP19820286A JP19820286A JPH0481809B2 JP H0481809 B2 JPH0481809 B2 JP H0481809B2 JP 19820286 A JP19820286 A JP 19820286A JP 19820286 A JP19820286 A JP 19820286A JP H0481809 B2 JPH0481809 B2 JP H0481809B2
Authority
JP
Japan
Prior art keywords
signal
tracking error
error signal
photodetector
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.)
Expired - Lifetime
Application number
JP19820286A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6355734A (ja
Inventor
Soju Goto
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.)
Kenwood KK
Original Assignee
Kenwood KK
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 Kenwood KK filed Critical Kenwood KK
Priority to JP19820286A priority Critical patent/JPS6355734A/ja
Publication of JPS6355734A publication Critical patent/JPS6355734A/ja
Publication of JPH0481809B2 publication Critical patent/JPH0481809B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
JP19820286A 1986-08-26 1986-08-26 光ピックアップ用回折格子の取付角適否判別装置 Granted JPS6355734A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19820286A JPS6355734A (ja) 1986-08-26 1986-08-26 光ピックアップ用回折格子の取付角適否判別装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19820286A JPS6355734A (ja) 1986-08-26 1986-08-26 光ピックアップ用回折格子の取付角適否判別装置

Publications (2)

Publication Number Publication Date
JPS6355734A JPS6355734A (ja) 1988-03-10
JPH0481809B2 true JPH0481809B2 (de) 1992-12-25

Family

ID=16387177

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19820286A Granted JPS6355734A (ja) 1986-08-26 1986-08-26 光ピックアップ用回折格子の取付角適否判別装置

Country Status (1)

Country Link
JP (1) JPS6355734A (de)

Also Published As

Publication number Publication date
JPS6355734A (ja) 1988-03-10

Similar Documents

Publication Publication Date Title
EP0087973A1 (de) Spurfolge-Servosystem für Informationswiedergabegerät mit optischer Scheibe
JPS5817549A (ja) 光学的トラツク追従装置
JP2845224B2 (ja) ランド/グルーブ検出装置
EP0410639B1 (de) Optisches Aufzeichnungs- und/oder Wiedergabegerät
JPH0453036A (ja) 光学情報記録再生装置
JPH0481809B2 (de)
DE4028703A1 (de) Verfahren zum messen oder regeln des radial- und tangentialwinkels eines lichtstrahls
JP2912981B2 (ja) 光学情報記録再生装置
US5644560A (en) Three-beam detecting system phase difference detector which eliminates phase difference error
JPS62102433A (ja) 光学ヘツド
JP2671659B2 (ja) 光ピックアップの調整装置
JP2737183B2 (ja) 光ディスクの特性測定方法
JP3339061B2 (ja) 位相差検出装置
JP3465268B2 (ja) 光学ピックアップ特性の計測装置及び光学ピックアップのトラッキング特性の計測方法
JPH08329533A (ja) 光ディスク用トラックピッチムラ測定装置
JPS6113447A (ja) トラツキング誤差検出装置
JP2845569B2 (ja) 光ディスク装置
KR100428332B1 (ko) 자기 기록 장치
JPH0433549Y2 (de)
JPH02254635A (ja) プリグルーブ横断信号検出装置
JPS62119739A (ja) 光ディスク装置のトラッキング方法
JPH0312035A (ja) 光ピックアップにおける一対のサブスポットからの反射光に基づく各検出信号の位相差の測定方法
JPH02260135A (ja) 光ピックアップにおけるスポット位相差の測定方法
JPS63222333A (ja) 光ヘツドトラツキング信号検出装置
JPS63179420A (ja) 3ビ−ム方式光ピツクアツプ装置の回折格子方向検出装置