JP2005235276A - 光ヘッド、光再生装置及び光記録再生装置 - Google Patents

光ヘッド、光再生装置及び光記録再生装置 Download PDF

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Publication number
JP2005235276A
JP2005235276A JP2004041701A JP2004041701A JP2005235276A JP 2005235276 A JP2005235276 A JP 2005235276A JP 2004041701 A JP2004041701 A JP 2004041701A JP 2004041701 A JP2004041701 A JP 2004041701A JP 2005235276 A JP2005235276 A JP 2005235276A
Authority
JP
Japan
Prior art keywords
light
optical head
optical
light source
photodetector
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.)
Abandoned
Application number
JP2004041701A
Other languages
English (en)
Japanese (ja)
Other versions
JP2005235276A5 (enExample
Inventor
Sadaichirou Oka
禎一郎 岡
Yoshinori Sato
吉徳 佐藤
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP2004041701A priority Critical patent/JP2005235276A/ja
Priority to TW094104567A priority patent/TWI272604B/zh
Priority to US11/059,604 priority patent/US7482573B2/en
Priority to CNB2005100074379A priority patent/CN100401396C/zh
Publication of JP2005235276A publication Critical patent/JP2005235276A/ja
Publication of JP2005235276A5 publication Critical patent/JP2005235276A5/ja
Abandoned legal-status Critical Current

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    • 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
    • G11B7/1395—Beam splitters or combiners
    • 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
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation
    • G11B7/1263—Power control during transducing, e.g. by monitoring
    • 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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
JP2004041701A 2004-02-18 2004-02-18 光ヘッド、光再生装置及び光記録再生装置 Abandoned JP2005235276A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2004041701A JP2005235276A (ja) 2004-02-18 2004-02-18 光ヘッド、光再生装置及び光記録再生装置
TW094104567A TWI272604B (en) 2004-02-18 2005-02-17 Optical head, optical reproduction apparatus and optical record and reproduction apparatus
US11/059,604 US7482573B2 (en) 2004-02-18 2005-02-17 Optical head, optical reproduction apparatus and optical record and reproduction apparatus
CNB2005100074379A CN100401396C (zh) 2004-02-18 2005-02-18 光学头、光学再生装置和光学记录及再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004041701A JP2005235276A (ja) 2004-02-18 2004-02-18 光ヘッド、光再生装置及び光記録再生装置

Publications (2)

Publication Number Publication Date
JP2005235276A true JP2005235276A (ja) 2005-09-02
JP2005235276A5 JP2005235276A5 (enExample) 2007-02-08

Family

ID=34836426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004041701A Abandoned JP2005235276A (ja) 2004-02-18 2004-02-18 光ヘッド、光再生装置及び光記録再生装置

Country Status (4)

Country Link
US (1) US7482573B2 (enExample)
JP (1) JP2005235276A (enExample)
CN (1) CN100401396C (enExample)
TW (1) TWI272604B (enExample)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008262135A (ja) * 2007-04-13 2008-10-30 Matsushita Electric Ind Co Ltd 画像記録装置
JP2011507304A (ja) * 2007-12-28 2011-03-03 アギア システムズ インコーポレーテッド デルタドープされた活性領域を有する導波路装置
JP2016520218A (ja) * 2013-05-27 2016-07-11 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． フィルタ、フィルタを製作する方法、およびレーザ波長監視装置
JP2021068743A (ja) * 2019-10-18 2021-04-30 日亜化学工業株式会社 光源装置
JP2022002269A (ja) * 2020-06-22 2022-01-06 日亜化学工業株式会社 光源装置
JP2022095967A (ja) * 2019-10-18 2022-06-28 日亜化学工業株式会社 光源装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7179050B2 (ja) * 2018-03-30 2022-11-28 ソニーセミコンダクタソリューションズ株式会社 記録再生装置
CN108802989B (zh) * 2018-08-17 2020-06-02 华中科技大学 一种并行多区域成像装置
CN112816447B (zh) * 2020-12-30 2022-02-15 华南理工大学 基于二维频率空间编码的多光子激发成像系统及成像方法

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0147620B1 (en) * 1983-11-22 1991-06-05 Kabushiki Kaisha Toshiba Optical head
US4843232A (en) * 1987-12-28 1989-06-27 Allied-Signal Inc. Optic switch and speed sensor
US5157459A (en) * 1989-08-29 1992-10-20 Asahi Kogaku Kogyo Kabushiki Kaisha Wave front aberration measuring apparatus
JP2690634B2 (ja) * 1991-07-08 1997-12-10 シャープ株式会社 光ヘッド
JP2555239B2 (ja) 1991-11-01 1996-11-20 株式会社日立製作所 光情報記録再生方法
US5350917A (en) * 1991-12-27 1994-09-27 Sony Corporation Opto-magnetic recording polarization optical apparatus including a laser diode and a light absorbing film
DE4404635C2 (de) * 1993-02-17 1998-06-18 Hitachi Ltd Schwimmender optischer Abtastkopf, der integral mit einer Lichtquelle und einem Photodetektor ausgebildet ist, und optisches Plattengerät mit einem solchen
JPH07192294A (ja) * 1993-12-27 1995-07-28 Nec Corp 光学式記録情報再生装置
JPH08235663A (ja) * 1995-02-24 1996-09-13 Sony Corp 光学素子
JPH08255368A (ja) 1995-03-20 1996-10-01 Toshiba Corp 光ヘッド
JPH10255314A (ja) 1997-03-12 1998-09-25 Ricoh Co Ltd 光ピックアップ装置
US5883872A (en) * 1997-05-29 1999-03-16 The Board Of Trustees Of The Leland Stanford Junior University Near field magneto-optical recording system employing slit illumination
JP2001118281A (ja) 1999-10-14 2001-04-27 Hitachi Media Electoronics Co Ltd 光ヘッドおよび光情報記録装置
JP2001308460A (ja) * 2000-04-27 2001-11-02 Sharp Corp 窒化物半導体レーザ素子とその光ピックアップ装置
JP2002185073A (ja) * 2000-10-04 2002-06-28 Pioneer Electronic Corp レーザ光強度制御装置
US6940794B2 (en) * 2001-08-03 2005-09-06 Matsushita Electric Industrial Co., Ltd. Information recording/reproducing apparatus that determines the number of recording layers of an information recording medium

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008262135A (ja) * 2007-04-13 2008-10-30 Matsushita Electric Ind Co Ltd 画像記録装置
JP2011507304A (ja) * 2007-12-28 2011-03-03 アギア システムズ インコーポレーテッド デルタドープされた活性領域を有する導波路装置
JP2016520218A (ja) * 2013-05-27 2016-07-11 華為技術有限公司Ｈｕａｗｅｉ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｃｏ．，Ｌｔｄ． フィルタ、フィルタを製作する方法、およびレーザ波長監視装置
US9678277B2 (en) 2013-05-27 2017-06-13 Huawei Technologies Co., Ltd. Filter, method for producing filter, and laser wavelength monitoring apparatus
JP7075016B2 (ja) 2019-10-18 2022-05-25 日亜化学工業株式会社 光源装置
JP2021068743A (ja) * 2019-10-18 2021-04-30 日亜化学工業株式会社 光源装置
JP2022095967A (ja) * 2019-10-18 2022-06-28 日亜化学工業株式会社 光源装置
US11381057B2 (en) 2019-10-18 2022-07-05 Nichia Corporation Light source device
JP7265213B2 (ja) 2019-10-18 2023-04-26 日亜化学工業株式会社 光源装置
US11705691B2 (en) 2019-10-18 2023-07-18 Nichia Corporation Light source device
JP2022002269A (ja) * 2020-06-22 2022-01-06 日亜化学工業株式会社 光源装置
JP7594165B2 (ja) 2020-06-22 2024-12-04 日亜化学工業株式会社 光源装置
JP2024178326A (ja) * 2020-06-22 2024-12-24 日亜化学工業株式会社 光源装置
JP7783522B2 (ja) 2020-06-22 2025-12-10 日亜化学工業株式会社 光源装置

Also Published As

Publication number Publication date
US20050178945A1 (en) 2005-08-18
TWI272604B (en) 2007-02-01
TW200534271A (en) 2005-10-16
CN1658300A (zh) 2005-08-24
CN100401396C (zh) 2008-07-09
US7482573B2 (en) 2009-01-27

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