JP4735749B2 - 光ヘッド装置 - Google Patents

光ヘッド装置 Download PDF

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Publication number
JP4735749B2
JP4735749B2 JP2009203657A JP2009203657A JP4735749B2 JP 4735749 B2 JP4735749 B2 JP 4735749B2 JP 2009203657 A JP2009203657 A JP 2009203657A JP 2009203657 A JP2009203657 A JP 2009203657A JP 4735749 B2 JP4735749 B2 JP 4735749B2
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JP
Japan
Prior art keywords
light
wavelength
diffraction grating
optical
linearly polarized
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
JP2009203657A
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English (en)
Japanese (ja)
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JP2009283132A (ja
JP2009283132A5 (https=
Inventor
好晴 大井
譲 田辺
真弘 村川
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.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP2009203657A priority Critical patent/JP4735749B2/ja
Publication of JP2009283132A publication Critical patent/JP2009283132A/ja
Publication of JP2009283132A5 publication Critical patent/JP2009283132A5/ja
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Publication of JP4735749B2 publication Critical patent/JP4735749B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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  • Diffracting Gratings Or Hologram Optical Elements (AREA)
  • Optical Head (AREA)
JP2009203657A 2000-01-31 2009-09-03 光ヘッド装置 Expired - Fee Related JP4735749B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009203657A JP4735749B2 (ja) 2000-01-31 2009-09-03 光ヘッド装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000021363 2000-01-31
JP2000021363 2000-01-31
JP2009203657A JP4735749B2 (ja) 2000-01-31 2009-09-03 光ヘッド装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2000218976A Division JP4560906B2 (ja) 2000-01-31 2000-07-19 光ヘッド装置

Publications (3)

Publication Number Publication Date
JP2009283132A JP2009283132A (ja) 2009-12-03
JP2009283132A5 JP2009283132A5 (https=) 2010-07-29
JP4735749B2 true JP4735749B2 (ja) 2011-07-27

Family

ID=41453401

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009203657A Expired - Fee Related JP4735749B2 (ja) 2000-01-31 2009-09-03 光ヘッド装置

Country Status (1)

Country Link
JP (1) JP4735749B2 (https=)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3208297B2 (ja) * 1995-09-29 2001-09-10 三洋電機株式会社 光ピックアップ
JPH10214431A (ja) * 1997-01-30 1998-08-11 Matsushita Electric Ind Co Ltd 光ヘッド装置
JPH11174226A (ja) * 1997-12-09 1999-07-02 Ricoh Co Ltd 偏光性ホログラムとそれを用いた光ヘッド

Also Published As

Publication number Publication date
JP2009283132A (ja) 2009-12-03

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