JP2002251775A5 - - Google Patents

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Publication number
JP2002251775A5
JP2002251775A5 JP2001048359A JP2001048359A JP2002251775A5 JP 2002251775 A5 JP2002251775 A5 JP 2002251775A5 JP 2001048359 A JP2001048359 A JP 2001048359A JP 2001048359 A JP2001048359 A JP 2001048359A JP 2002251775 A5 JP2002251775 A5 JP 2002251775A5
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JP
Japan
Prior art keywords
laser light
optical
recording medium
light source
diffracted
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
JP2001048359A
Other languages
English (en)
Japanese (ja)
Other versions
JP4634627B2 (ja
JP2002251775A (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2001048359A priority Critical patent/JP4634627B2/ja
Priority claimed from JP2001048359A external-priority patent/JP4634627B2/ja
Publication of JP2002251775A publication Critical patent/JP2002251775A/ja
Publication of JP2002251775A5 publication Critical patent/JP2002251775A5/ja
Application granted granted Critical
Publication of JP4634627B2 publication Critical patent/JP4634627B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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JP2001048359A 2001-02-23 2001-02-23 光ピックアップ装置 Expired - Fee Related JP4634627B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2001048359A JP4634627B2 (ja) 2001-02-23 2001-02-23 光ピックアップ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2001048359A JP4634627B2 (ja) 2001-02-23 2001-02-23 光ピックアップ装置

Publications (3)

Publication Number Publication Date
JP2002251775A JP2002251775A (ja) 2002-09-06
JP2002251775A5 true JP2002251775A5 (enExample) 2005-09-02
JP4634627B2 JP4634627B2 (ja) 2011-02-16

Family

ID=18909640

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2001048359A Expired - Fee Related JP4634627B2 (ja) 2001-02-23 2001-02-23 光ピックアップ装置

Country Status (1)

Country Link
JP (1) JP4634627B2 (enExample)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3909025B2 (ja) 2002-03-20 2007-04-25 シャープ株式会社 光ピックアップ装置およびその製造方法

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