JP4654500B2 - 光学レンズ並びにこれを使用した光学ピックアップ装置及び光ディスク装置 - Google Patents

光学レンズ並びにこれを使用した光学ピックアップ装置及び光ディスク装置 Download PDF

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Publication number
JP4654500B2
JP4654500B2 JP2000292145A JP2000292145A JP4654500B2 JP 4654500 B2 JP4654500 B2 JP 4654500B2 JP 2000292145 A JP2000292145 A JP 2000292145A JP 2000292145 A JP2000292145 A JP 2000292145A JP 4654500 B2 JP4654500 B2 JP 4654500B2
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JP
Japan
Prior art keywords
optical
objective lens
optical surface
convex curved
pickup device
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
JP2000292145A
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English (en)
Japanese (ja)
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JP2002098890A (ja
JP2002098890A5 (https=
Inventor
啓行 榊原
博之 上田
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 JP2000292145A priority Critical patent/JP4654500B2/ja
Priority to US09/962,307 priority patent/US6862259B2/en
Publication of JP2002098890A publication Critical patent/JP2002098890A/ja
Publication of JP2002098890A5 publication Critical patent/JP2002098890A5/ja
Application granted granted Critical
Publication of JP4654500B2 publication Critical patent/JP4654500B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Lenses (AREA)
JP2000292145A 2000-09-26 2000-09-26 光学レンズ並びにこれを使用した光学ピックアップ装置及び光ディスク装置 Expired - Lifetime JP4654500B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2000292145A JP4654500B2 (ja) 2000-09-26 2000-09-26 光学レンズ並びにこれを使用した光学ピックアップ装置及び光ディスク装置
US09/962,307 US6862259B2 (en) 2000-09-26 2001-09-26 Optical lens, optical pickup apparatus, and optical disk apparatus using the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000292145A JP4654500B2 (ja) 2000-09-26 2000-09-26 光学レンズ並びにこれを使用した光学ピックアップ装置及び光ディスク装置

Publications (3)

Publication Number Publication Date
JP2002098890A JP2002098890A (ja) 2002-04-05
JP2002098890A5 JP2002098890A5 (https=) 2008-06-19
JP4654500B2 true JP4654500B2 (ja) 2011-03-23

Family

ID=18775122

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000292145A Expired - Lifetime JP4654500B2 (ja) 2000-09-26 2000-09-26 光学レンズ並びにこれを使用した光学ピックアップ装置及び光ディスク装置

Country Status (2)

Country Link
US (1) US6862259B2 (https=)
JP (1) JP4654500B2 (https=)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02101416A (ja) * 1988-10-11 1990-04-13 Alps Electric Co Ltd 光メモリ装置用対物レンズ
JPH08271703A (ja) * 1995-03-29 1996-10-18 Konica Corp 樹脂レンズ
JPH09185836A (ja) * 1995-11-02 1997-07-15 Konica Corp 光情報記録媒体の記録再生用光学系
JPH09152548A (ja) * 1995-11-30 1997-06-10 Fujitsu Takamizawa Component Kk 対物レンズ
JP3837805B2 (ja) * 1995-12-19 2006-10-25 コニカミノルタホールディングス株式会社 光ピックアップ装置、集光光学系、対物レンズ、再生方法及び光ディスク装置
JPH1069675A (ja) * 1995-12-19 1998-03-10 Konica Corp 光ピックアップ装置、光ピックアップの対物レンズ及び光ディスク装置
KR100200873B1 (ko) * 1996-01-11 1999-06-15 윤종용 광 픽업 장치
US6181673B1 (en) * 1996-07-30 2001-01-30 Read-Rite Corporation Slider design
JP3385213B2 (ja) * 1998-05-29 2003-03-10 ペンタックス株式会社 光ヘッド用対物レンズ
JPH11344666A (ja) * 1998-06-03 1999-12-14 Konica Corp 光ピックアップ
KR100765741B1 (ko) * 2001-07-26 2007-10-15 삼성전자주식회사 일 매의 렌즈로 된 고개구수의 대물렌즈 및 이를 채용한광픽업장치

Also Published As

Publication number Publication date
JP2002098890A (ja) 2002-04-05
US20020036974A1 (en) 2002-03-28
US6862259B2 (en) 2005-03-01

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