JP2001110087A - 光ヘッド、光情報記録再生装置および焦点誤差検出方法 - Google Patents

光ヘッド、光情報記録再生装置および焦点誤差検出方法

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Publication number
JP2001110087A
JP2001110087A JP29081799A JP29081799A JP2001110087A JP 2001110087 A JP2001110087 A JP 2001110087A JP 29081799 A JP29081799 A JP 29081799A JP 29081799 A JP29081799 A JP 29081799A JP 2001110087 A JP2001110087 A JP 2001110087A
Authority
JP
Japan
Prior art keywords
light
objective lens
recording medium
optical head
optical
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
JP29081799A
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English (en)
Japanese (ja)
Other versions
JP2001110087A5 (enExample
Inventor
Noriaki Nishi
紀彰 西
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP29081799A priority Critical patent/JP2001110087A/ja
Publication of JP2001110087A publication Critical patent/JP2001110087A/ja
Publication of JP2001110087A5 publication Critical patent/JP2001110087A5/ja
Pending legal-status Critical Current

Links

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  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
JP29081799A 1999-10-13 1999-10-13 光ヘッド、光情報記録再生装置および焦点誤差検出方法 Pending JP2001110087A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP29081799A JP2001110087A (ja) 1999-10-13 1999-10-13 光ヘッド、光情報記録再生装置および焦点誤差検出方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP29081799A JP2001110087A (ja) 1999-10-13 1999-10-13 光ヘッド、光情報記録再生装置および焦点誤差検出方法

Publications (2)

Publication Number Publication Date
JP2001110087A true JP2001110087A (ja) 2001-04-20
JP2001110087A5 JP2001110087A5 (enExample) 2006-05-11

Family

ID=17760877

Family Applications (1)

Application Number Title Priority Date Filing Date
JP29081799A Pending JP2001110087A (ja) 1999-10-13 1999-10-13 光ヘッド、光情報記録再生装置および焦点誤差検出方法

Country Status (1)

Country Link
JP (1) JP2001110087A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007141324A (ja) * 2005-11-16 2007-06-07 Sony Corp 光学ピックアップ、光記録再生装置及びフォーカスエラー信号検出方法
KR101175661B1 (ko) 2010-06-30 2012-08-22 서강대학교산학협력단 광학식 복합진단 측정 장치 및 방법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007141324A (ja) * 2005-11-16 2007-06-07 Sony Corp 光学ピックアップ、光記録再生装置及びフォーカスエラー信号検出方法
KR101175661B1 (ko) 2010-06-30 2012-08-22 서강대학교산학협력단 광학식 복합진단 측정 장치 및 방법

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