KR940024709A - 광학식 정보기록재생장치의 레이저출력제어장치 - Google Patents

광학식 정보기록재생장치의 레이저출력제어장치 Download PDF

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Publication number
KR940024709A
KR940024709A KR1019940008299A KR19940008299A KR940024709A KR 940024709 A KR940024709 A KR 940024709A KR 1019940008299 A KR1019940008299 A KR 1019940008299A KR 19940008299 A KR19940008299 A KR 19940008299A KR 940024709 A KR940024709 A KR 940024709A
Authority
KR
South Korea
Prior art keywords
information recording
optical information
receiving element
light
reproducing apparatus
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.)
Ceased
Application number
KR1019940008299A
Other languages
English (en)
Korean (ko)
Inventor
가즈오 노다
에이이찌 나까무라
고이찌 야마사끼
Original Assignee
오까다 마사하루
가부시끼가이샤 니뽄곤락스
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 오까다 마사하루, 가부시끼가이샤 니뽄곤락스 filed Critical 오까다 마사하루
Publication of KR940024709A publication Critical patent/KR940024709A/ko
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G11B7/13—Optical detectors therefor
    • G11B7/131—Arrangement of detectors in a multiple array
    • 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
    • G11B7/123—Integrated head arrangements, e.g. with source and detectors mounted on the same substrate
    • 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
    • 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
    • G11B7/1362—Mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Semiconductor Lasers (AREA)
KR1019940008299A 1993-04-26 1994-04-20 광학식 정보기록재생장치의 레이저출력제어장치 Ceased KR940024709A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP93-122028 1993-04-26
JP5122028A JPH06309685A (ja) 1993-04-26 1993-04-26 光学式情報記録再生装置のレーザ出力制御装置

Publications (1)

Publication Number Publication Date
KR940024709A true KR940024709A (ko) 1994-11-18

Family

ID=14825809

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019940008299A Ceased KR940024709A (ko) 1993-04-26 1994-04-20 광학식 정보기록재생장치의 레이저출력제어장치

Country Status (8)

Country Link
US (1) US5600621A (enExample)
EP (1) EP0623922B1 (enExample)
JP (1) JPH06309685A (enExample)
KR (1) KR940024709A (enExample)
CN (1) CN1056936C (enExample)
AU (1) AU668464B2 (enExample)
DE (1) DE69425090T2 (enExample)
TW (1) TW253966B (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29502016U1 (de) * 1995-02-08 1995-03-30 Linotype-Hell Ag, Werk Kiel, 24107 Kiel Optoelektronisches Aufzeichnungsorgan
KR100219141B1 (ko) * 1996-04-18 1999-09-01 윤종용 광출력모니터링기능을 갖는 레이저다이오드페케지
JPH1065218A (ja) * 1996-08-23 1998-03-06 Kdk Corp 光学系用ｌｅｄ
US5953355A (en) * 1997-04-02 1999-09-14 Motorola, Inc. Semiconductor laser package with power monitoring system
JP3765348B2 (ja) * 1997-05-29 2006-04-12 ミツミ電機株式会社 レーザ光投光装置
JPH11273119A (ja) * 1998-03-24 1999-10-08 Pioneer Electron Corp 光学式ピックアップ装置
JP3382846B2 (ja) 1998-05-11 2003-03-04 日本電気株式会社 光ヘッド及び光ヘッドに於ける光源出力のモニター方法
US6674709B1 (en) * 1999-04-23 2004-01-06 Matsushita Electric Industrial Co., Ltd. Optical head apparatus
JP2003060299A (ja) * 2001-06-07 2003-02-28 Ricoh Opt Ind Co Ltd 光出力素子・光出力素子アレイおよびレンズ素子・レンズ素子アレイ
JP2003203341A (ja) * 2001-11-02 2003-07-18 Victor Co Of Japan Ltd 光ディスク、光ディスク記録再生装置及び光ディスク記録再生方法
JP4190775B2 (ja) * 2002-03-05 2008-12-03 Ｎｅｃエレクトロニクス株式会社 波長安定化半導体レーザモジュール
US7218591B2 (en) 2002-04-17 2007-05-15 Sharp Kabushiki Kaisha Optical pickup apparatus
JP4645008B2 (ja) 2002-06-10 2011-03-09 日亜化学工業株式会社 半導体レーザ装置
KR100498481B1 (ko) * 2003-01-24 2005-07-01 삼성전자주식회사 광픽업장치
JP3866691B2 (ja) * 2003-07-01 2007-01-10 シャープ株式会社 光ピックアップ装置およびそれを備えてなる光ディスク装置
JP3991227B2 (ja) 2003-11-12 2007-10-17 船井電機株式会社 光ヘッド装置
US20070263683A1 (en) * 2006-05-12 2007-11-15 Canon Kabushiki Kaisha Optical apparatus and image forming apparatus
JP5262231B2 (ja) 2008-03-27 2013-08-14 セイコーエプソン株式会社 光源装置及び画像表示装置
CN105572815B (zh) * 2015-12-21 2018-02-23 华进半导体封装先导技术研发中心有限公司 有源光学转接板和光互连模块
DE102017207224B4 (de) 2017-04-28 2024-01-04 pmdtechnologies ag Beleuchtungsmodul mit einem Oberflächenemitter und einem Monitorempfänger
JP7318180B2 (ja) * 2018-07-09 2023-08-01 大日本印刷株式会社 照明装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS506260A (enExample) * 1973-05-17 1975-01-22
JPS5410481B2 (enExample) * 1974-09-06 1979-05-07
JPS5223902A (en) * 1975-08-18 1977-02-23 Matsushita Electric Ind Co Ltd Optical playback device
JPS60257584A (ja) * 1984-06-04 1985-12-19 Sharp Corp 光検出器内蔵型半導体レ−ザ
JPS61131581A (ja) * 1984-11-30 1986-06-19 Sharp Corp 半導体レ−ザ装置
CA1258906A (en) * 1985-04-22 1989-08-29 Hiroshi Oinoue Semiconductor laser apparatus for optical head
DE3680865D1 (de) * 1985-11-11 1991-09-19 Sharp Kk Optischer kopf.
JPH0614570B2 (ja) * 1987-04-28 1994-02-23 シャープ株式会社 光出力安定化方法および該方法に使用する光検出器
JPH0247015A (ja) * 1988-08-10 1990-02-16 Nippon Zeon Co Ltd 傾斜機能材料の製造方法
JPH0296622U (enExample) * 1989-01-18 1990-08-01
JPH0778904B2 (ja) * 1989-01-27 1995-08-23 シャープ株式会社 光ピックアップ装置
US5023858A (en) * 1989-02-28 1991-06-11 Ricoh Company, Ltd. Separation type optical pickup device
JPH04330646A (ja) * 1991-05-01 1992-11-18 Nippon Conlux Co Ltd 光学式情報記録再生装置のレーザ出力制御装置
JPH056260A (ja) * 1991-06-27 1993-01-14 Nec Corp 日本語データ圧縮方式
US5191204A (en) * 1991-10-28 1993-03-02 International Business Machines Corporation Multi-beam optical system and method with power detection of overlapping beams
JPH05128569A (ja) * 1991-10-31 1993-05-25 Mitsubishi Electric Corp 光ピツクアツプ装置

Also Published As

Publication number Publication date
EP0623922A1 (en) 1994-11-09
US5600621A (en) 1997-02-04
TW253966B (enExample) 1995-08-11
CN1056936C (zh) 2000-09-27
DE69425090D1 (de) 2000-08-10
CN1100550A (zh) 1995-03-22
EP0623922B1 (en) 2000-07-05
AU668464B2 (en) 1996-05-02
JPH06309685A (ja) 1994-11-04
AU6069294A (en) 1994-11-03
DE69425090T2 (de) 2001-03-01

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A201 Request for examination
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 19940420

PA0201 Request for examination

Patent event code: PA02012R01D

Patent event date: 19940420

Comment text: Request for Examination of Application

PG1501 Laying open of application
E902 Notification of reason for refusal
PE0902 Notice of grounds for rejection

Comment text: Notification of reason for refusal

Patent event date: 19970428

Patent event code: PE09021S01D

AMND Amendment
E601 Decision to refuse application
PE0601 Decision on rejection of patent

Patent event date: 19971112

Comment text: Decision to Refuse Application

Patent event code: PE06012S01D

Patent event date: 19970428

Comment text: Notification of reason for refusal

Patent event code: PE06011S01I

J2X1 Appeal (before the patent court)

Free format text: APPEAL AGAINST DECISION TO DECLINE REFUSAL

PJ2001 Appeal

Appeal kind category: Appeal against decision to decline refusal

Decision date: 19981231

Appeal identifier: 1998201000049

Request date: 19980109

PB0901 Examination by re-examination before a trial

Comment text: Request for Trial against Decision on Refusal

Patent event date: 19980109

Patent event code: PB09011R01I

Comment text: Amendment to Specification, etc.

Patent event date: 19970822

Patent event code: PB09011R02I