JP3822406B2 - 光ヘッド装置 - Google Patents

光ヘッド装置 Download PDF

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Publication number
JP3822406B2
JP3822406B2 JP37156499A JP37156499A JP3822406B2 JP 3822406 B2 JP3822406 B2 JP 3822406B2 JP 37156499 A JP37156499 A JP 37156499A JP 37156499 A JP37156499 A JP 37156499A JP 3822406 B2 JP3822406 B2 JP 3822406B2
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JP
Japan
Prior art keywords
light
light source
beam splitter
phase delay
lens
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 - Fee Related
Application number
JP37156499A
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English (en)
Japanese (ja)
Other versions
JP2001184695A5 (enExample
JP2001184695A (ja
Inventor
暁 木下
郁夫 春日
稔彦 翁
克重 柳澤
徹 堀田
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.)
Toshiba Corp
Nidec Instruments Corp
Original Assignee
Toshiba Corp
Nidec Sankyo 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 Toshiba Corp, Nidec Sankyo Corp filed Critical Toshiba Corp
Priority to JP37156499A priority Critical patent/JP3822406B2/ja
Publication of JP2001184695A publication Critical patent/JP2001184695A/ja
Publication of JP2001184695A5 publication Critical patent/JP2001184695A5/ja
Application granted granted Critical
Publication of JP3822406B2 publication Critical patent/JP3822406B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Optical Head (AREA)
JP37156499A 1999-12-27 1999-12-27 光ヘッド装置 Expired - Fee Related JP3822406B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP37156499A JP3822406B2 (ja) 1999-12-27 1999-12-27 光ヘッド装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP37156499A JP3822406B2 (ja) 1999-12-27 1999-12-27 光ヘッド装置

Publications (3)

Publication Number Publication Date
JP2001184695A JP2001184695A (ja) 2001-07-06
JP2001184695A5 JP2001184695A5 (enExample) 2005-06-16
JP3822406B2 true JP3822406B2 (ja) 2006-09-20

Family

ID=18498930

Family Applications (1)

Application Number Title Priority Date Filing Date
JP37156499A Expired - Fee Related JP3822406B2 (ja) 1999-12-27 1999-12-27 光ヘッド装置

Country Status (1)

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JP (1) JP3822406B2 (enExample)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1650199B (zh) * 2002-04-26 2010-05-12 爱普生拓优科梦株式会社 叠层波长板及使用它的光学拾波器
EP2287844A3 (en) 2003-07-07 2011-04-13 Panasonic Corporation Objective lens, optical pick-up device, and optical disk device
JP4507536B2 (ja) * 2003-09-04 2010-07-21 パナソニック株式会社 光ピックアップ装置
CN100397109C (zh) * 2003-12-03 2008-06-25 Jsr株式会社 用于激光光学系统的波长板
JP4661144B2 (ja) * 2004-09-16 2011-03-30 株式会社ニコン 波長分離光学素子、色温度可変光源装置、色温度補正光学装置および撮像システム

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Publication number Publication date
JP2001184695A (ja) 2001-07-06

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