JP2001042103A5 - - Google Patents

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Publication number
JP2001042103A5
JP2001042103A5 JP1999211725A JP21172599A JP2001042103A5 JP 2001042103 A5 JP2001042103 A5 JP 2001042103A5 JP 1999211725 A JP1999211725 A JP 1999211725A JP 21172599 A JP21172599 A JP 21172599A JP 2001042103 A5 JP2001042103 A5 JP 2001042103A5
Authority
JP
Japan
Prior art keywords
objective lens
region
steps
lens according
transparent substrate
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.)
Granted
Application number
JP1999211725A
Other languages
English (en)
Japanese (ja)
Other versions
JP3858523B2 (ja
JP2001042103A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP21172599A priority Critical patent/JP3858523B2/ja
Priority claimed from JP21172599A external-priority patent/JP3858523B2/ja
Priority to US09/614,191 priority patent/US6717906B1/en
Publication of JP2001042103A publication Critical patent/JP2001042103A/ja
Publication of JP2001042103A5 publication Critical patent/JP2001042103A5/ja
Application granted granted Critical
Publication of JP3858523B2 publication Critical patent/JP3858523B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

JP21172599A 1999-07-27 1999-07-27 対物レンズ Expired - Lifetime JP3858523B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP21172599A JP3858523B2 (ja) 1999-07-27 1999-07-27 対物レンズ
US09/614,191 US6717906B1 (en) 1999-07-27 2000-07-11 Optical disk apparatus to perform either reproduction or reproduction/recording of each of at least two kinds of optical disks having different substrate thicknesses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21172599A JP3858523B2 (ja) 1999-07-27 1999-07-27 対物レンズ

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2006207372A Division JP4176117B2 (ja) 2006-07-31 2006-07-31 対物レンズ

Publications (3)

Publication Number Publication Date
JP2001042103A JP2001042103A (ja) 2001-02-16
JP2001042103A5 true JP2001042103A5 (https=) 2006-06-01
JP3858523B2 JP3858523B2 (ja) 2006-12-13

Family

ID=16610578

Family Applications (1)

Application Number Title Priority Date Filing Date
JP21172599A Expired - Lifetime JP3858523B2 (ja) 1999-07-27 1999-07-27 対物レンズ

Country Status (2)

Country Link
US (1) US6717906B1 (https=)
JP (1) JP3858523B2 (https=)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4903300B2 (ja) * 2000-07-31 2012-03-28 旭硝子株式会社 光学装置
JP2002230818A (ja) * 2001-02-02 2002-08-16 Sankyo Seiki Mfg Co Ltd 光ヘッド装置
WO2002082437A1 (en) * 2001-04-05 2002-10-17 Koninklijke Philips Electronics N.V. Optical scanning device
US7283451B2 (en) * 2001-04-17 2007-10-16 Matsushita Electric Industrial Co., Ltd. Objective lens, optical head apparatus, optical information recording/reproducing apparatus
JP2003173561A (ja) * 2001-09-27 2003-06-20 Matsushita Electric Ind Co Ltd 光ディスク装置
KR101037031B1 (ko) 2002-09-30 2011-05-25 코니카 미노루따 호르딩구스 가부시끼가이샤 광학 요소, 대물 광학 요소 및 광학 픽업 장치
JP2005129198A (ja) * 2003-09-30 2005-05-19 Pentax Corp 対物レンズ
JP5613593B2 (ja) * 2011-03-02 2014-10-29 日立マクセル株式会社 対物レンズ及び光ピックアップ装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3048768B2 (ja) 1992-10-08 2000-06-05 三洋電機株式会社 光学ヘッド
JP3240846B2 (ja) 1994-08-12 2001-12-25 松下電器産業株式会社 光ヘッド
KR100230253B1 (ko) 1996-02-14 1999-11-15 윤종용 대물렌즈 장치 및 이의 제작방법 및 이를 적용한 광픽업장치
US6222812B1 (en) * 1996-08-29 2001-04-24 Samsung Electronics Co., Ltd. Optical pickup using an optical phase plate
JP3484038B2 (ja) 1997-03-13 2004-01-06 株式会社日立製作所 対物レンズおよびそれを用いた光ヘッド
EP1884944B1 (en) * 1997-03-13 2014-08-27 Hitachi Maxell, Ltd. Compatible objective lens
JP3827860B2 (ja) * 1998-03-31 2006-09-27 パイオニア株式会社 対物レンズ及び光ピックアップ装置

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