TW200700781A - Phase plate and optical head device - Google Patents

Phase plate and optical head device

Info

Publication number
TW200700781A
TW200700781A TW095114127A TW95114127A TW200700781A TW 200700781 A TW200700781 A TW 200700781A TW 095114127 A TW095114127 A TW 095114127A TW 95114127 A TW95114127 A TW 95114127A TW 200700781 A TW200700781 A TW 200700781A
Authority
TW
Taiwan
Prior art keywords
phase
optical
head device
phase plate
optical head
Prior art date
Application number
TW095114127A
Other languages
English (en)
Inventor
Toshimasa Kakiuchi
Koichi Murata
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
Publication of TW200700781A publication Critical patent/TW200700781A/zh

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3083—Birefringent or phase retarding elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/288—Filters employing polarising elements, e.g. Lyot or Solc filters
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353—Diffractive elements, e.g. holograms or gratings
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1365—Separate or integrated refractive elements, e.g. wave plates
    • G11B7/1367—Stepped phase plates
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1381—Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00—Recording or reproducing by optical means, e.g. recording using a thermal beam of optical radiation by modifying optical properties or the physical structure, reproducing using an optical beam at lower power by sensing optical properties; Record carriers therefor
    • G11B2007/0003—Recording, reproducing or erasing systems characterised by the structure or type of the carrier
    • G11B2007/0006—Recording, reproducing or erasing systems characterised by the structure or type of the carrier adapted for scanning different types of carrier, e.g. CD & DVD
TW095114127A 2005-04-20 2006-04-20 Phase plate and optical head device TW200700781A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005122609 2005-04-20

Publications (1)

Publication Number Publication Date
TW200700781A true TW200700781A (en) 2007-01-01

Family

ID=37115192

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095114127A TW200700781A (en) 2005-04-20 2006-04-20 Phase plate and optical head device

Country Status (5)

Country Link
US (1) US7782738B2 (zh)
JP (1) JP5061899B2 (zh)
KR (1) KR20070120952A (zh)
TW (1) TW200700781A (zh)
WO (1) WO2006112480A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007105767A1 (ja) * 2006-03-16 2007-09-20 Asahi Glass Co., Ltd. 光ヘッド装置
JP4547641B2 (ja) * 2008-09-22 2010-09-22 ソニー株式会社 位相差板の製造方法
KR101039325B1 (ko) * 2010-09-08 2011-06-08 주식회사 엘엠에스 위상지연소자
JP5916355B2 (ja) 2011-11-21 2016-05-11 インターナショナル・ビジネス・マシーンズ・コーポレーションＩｎｔｅｒｎａｔｉｏｎａｌ Ｂｕｓｉｎｅｓｓ Ｍａｃｈｉｎｅｓ Ｃｏｒｐｏｒａｔｉｏｎ プログラムの命令を実行する装置および命令をキャッシュするシステム
US11022791B2 (en) * 2018-05-18 2021-06-01 Facebook Technologies, Llc Assemblies of anisotropic optical elements and methods of making

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3238497B2 (ja) * 1992-11-12 2001-12-17 松下電器産業株式会社 光ピックアップヘッド装置
JPH07318862A (ja) * 1994-05-20 1995-12-08 Hitachi Ltd 光記録媒体における波面収差の低減方法および光ヘッドおよび光ディスク装置
KR100214046B1 (ko) * 1995-03-27 1999-08-02 마츠시타 덴끼 산교 가부시키가이샤 초해상 광헤드장치
JPH10124906A (ja) * 1996-10-16 1998-05-15 Sankyo Seiki Mfg Co Ltd 波長板およびそれを用いた光ピックアップ装置
JPH11223729A (ja) * 1998-02-09 1999-08-17 Sankyo Seiki Mfg Co Ltd 偏光分離素子およびその製造方法
US6426933B1 (en) * 1998-10-08 2002-07-30 Lg Electronics Inc. Optical pickup apparatus having polarizing phase plates
JP2000260035A (ja) * 1999-03-11 2000-09-22 Hitachi Ltd 光ヘッドおよびそれを用いた光学的情報記録再生装置
WO2001016627A1 (fr) * 1999-08-26 2001-03-08 Asahi Glass Company, Limited Dephaseur et tete optique montee en association avec ledit dephaseur
JP2001305340A (ja) * 2000-04-20 2001-10-31 Fuji Xerox Co Ltd 空間偏光変調器および光学装置
JP4649748B2 (ja) 2001-02-22 2011-03-16 旭硝子株式会社 ２波長用位相板および光ヘッド装置
US20060250933A1 (en) * 2003-04-25 2006-11-09 Asada Jun-Ichi Optical diffraction device and optical information processing device
JP2004355790A (ja) * 2003-05-08 2004-12-16 Sharp Corp ホログラム結合体およびその製造方法、ホログラムレーザユニットならびに光ピックアップ装置
JP5055694B2 (ja) * 2003-12-26 2012-10-24 旭硝子株式会社 偏光性回折素子および光ヘッド装置
JP2005339766A (ja) * 2004-04-23 2005-12-08 Matsushita Electric Ind Co Ltd 光ディスク装置
KR20060047397A (ko) * 2004-04-23 2006-05-18 마츠시타 덴끼 산교 가부시키가이샤 광디스크 장치, 광학 소자 및 광학 소자의 제조 방법

Also Published As

Publication number Publication date
US20080044125A1 (en) 2008-02-21
JPWO2006112480A1 (ja) 2008-12-11
WO2006112480A1 (ja) 2006-10-26
JP5061899B2 (ja) 2012-10-31
KR20070120952A (ko) 2007-12-26
US7782738B2 (en) 2010-08-24

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