JP2005327401A5 - - Google Patents

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Publication number
JP2005327401A5
JP2005327401A5 JP2004145644A JP2004145644A JP2005327401A5 JP 2005327401 A5 JP2005327401 A5 JP 2005327401A5 JP 2004145644 A JP2004145644 A JP 2004145644A JP 2004145644 A JP2004145644 A JP 2004145644A JP 2005327401 A5 JP2005327401 A5 JP 2005327401A5
Authority
JP
Japan
Prior art keywords
refractive power
lens group
variable element
objective lens
power variable
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
JP2004145644A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005327401A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2004145644A priority Critical patent/JP2005327401A/ja
Priority claimed from JP2004145644A external-priority patent/JP2005327401A/ja
Publication of JP2005327401A publication Critical patent/JP2005327401A/ja
Publication of JP2005327401A5 publication Critical patent/JP2005327401A5/ja
Pending legal-status Critical Current

Links

JP2004145644A 2004-05-14 2004-05-14 光ピックアップ Pending JP2005327401A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004145644A JP2005327401A (ja) 2004-05-14 2004-05-14 光ピックアップ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004145644A JP2005327401A (ja) 2004-05-14 2004-05-14 光ピックアップ

Publications (2)

Publication Number Publication Date
JP2005327401A JP2005327401A (ja) 2005-11-24
JP2005327401A5 true JP2005327401A5 (enExample) 2007-06-28

Family

ID=35473619

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004145644A Pending JP2005327401A (ja) 2004-05-14 2004-05-14 光ピックアップ

Country Status (1)

Country Link
JP (1) JP2005327401A (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100074077A1 (en) * 2006-10-18 2010-03-25 Ryuichi Katayama Optical head device and optical information recording/reproducing device
WO2009125765A1 (ja) * 2008-04-10 2009-10-15 日本電気株式会社 光学的情報記録再生装置および光学的情報記録再生方法
JP5240098B2 (ja) * 2009-06-30 2013-07-17 日本電気株式会社 光学ユニット及び光学的情報記録再生装置

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