JPH01151428U - - Google Patents

Info

Publication number
JPH01151428U
JPH01151428U JP4631188U JP4631188U JPH01151428U JP H01151428 U JPH01151428 U JP H01151428U JP 4631188 U JP4631188 U JP 4631188U JP 4631188 U JP4631188 U JP 4631188U JP H01151428 U JPH01151428 U JP H01151428U
Authority
JP
Japan
Prior art keywords
recording lens
axis direction
cutting machine
optical axis
optical disk
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
JP4631188U
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 JP4631188U priority Critical patent/JPH01151428U/ja
Publication of JPH01151428U publication Critical patent/JPH01151428U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Manufacturing Optical Record Carriers (AREA)
  • 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図は本考案の実施例を示す概略図、第２図
ａからｅは本考案を説明するための説明図、第３
図は従来例を示す概略図である。 ４…フオーカス検知用光ビーム、７…フオーカ
ス検知器、８…ガラス原盤。

Claims (1)

    【実用新案登録請求の範囲】
  1. 記録レンズを含む筐体が、光軸方向に可動であ
    る光デイスクカツテイングマシンにおいて、フオ
    ーカス検知用光ビームのガラス原盤からの反射光
    によつてフオーカス誤差検出用２分割光検出器の
    片側の検出器の出力レベルを検出し、これにより
    前記記録レンズを含む筐体の光軸方向の移動速度
    を高速から低速に変化させることを特徴とした光
    デイスクのカツテイングマシンの記録レンズ移動
    装置。
JP4631188U 1988-04-06 1988-04-06 Pending JPH01151428U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4631188U JPH01151428U (ja) 1988-04-06 1988-04-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4631188U JPH01151428U (ja) 1988-04-06 1988-04-06

Publications (1)

Publication Number Publication Date
JPH01151428U true JPH01151428U (ja) 1989-10-19

Family

ID=31272581

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4631188U Pending JPH01151428U (ja) 1988-04-06 1988-04-06

Country Status (1)

Country Link
JP (1) JPH01151428U (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999021181A1 (en) * 1997-10-16 1999-04-29 Seiko Epson Corporation Recorder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536001A (en) * 1976-07-07 1978-01-20 Toshiba Corp Focus location detector for optical recording medium
JPS57172306A (en) * 1981-04-17 1982-10-23 Tdk Corp Focus controller of optical recording system
JPS6257127A (ja) * 1985-09-06 1987-03-12 Hitachi Ltd 自動焦点制御方式

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536001A (en) * 1976-07-07 1978-01-20 Toshiba Corp Focus location detector for optical recording medium
JPS57172306A (en) * 1981-04-17 1982-10-23 Tdk Corp Focus controller of optical recording system
JPS6257127A (ja) * 1985-09-06 1987-03-12 Hitachi Ltd 自動焦点制御方式

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999021181A1 (en) * 1997-10-16 1999-04-29 Seiko Epson Corporation Recorder
WO1999021182A1 (en) * 1997-10-16 1999-04-29 Seiko Epson Corporation Recorder

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