CN1109337C - 记录媒体用的光点产生装置 - Google Patents

记录媒体用的光点产生装置 Download PDF

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Publication number
CN1109337C
CN1109337C CN98808282A CN98808282A CN1109337C CN 1109337 C CN1109337 C CN 1109337C CN 98808282 A CN98808282 A CN 98808282A CN 98808282 A CN98808282 A CN 98808282A CN 1109337 C CN1109337 C CN 1109337C
Authority
CN
China
Prior art keywords
collimator
lens
optical
generation device
along
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
CN98808282A
Other languages
English (en)
Chinese (zh)
Other versions
CN1267386A (zh
Inventor
宫泽宽
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.)
Kenwood KK
Original Assignee
Kenwood KK
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 Kenwood KK filed Critical Kenwood KK
Publication of CN1267386A publication Critical patent/CN1267386A/zh
Application granted granted Critical
Publication of CN1109337C publication Critical patent/CN1109337C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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
    • G11B7/135—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
    • G11B7/1372—Lenses
    • G11B7/1376—Collimator lenses
    • 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
    • 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses
    • 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
    • G11B2220/00—Record carriers by type
    • G11B2220/17—Card-like record carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B2220/00—Record carriers by type
    • G11B2220/20—Disc-shaped record carriers
    • G11B2220/25—Disc-shaped record carriers characterised in that the disc is based on a specific recording technology
    • G11B2220/2537—Optical discs

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
CN98808282A 1997-08-19 1998-08-05 记录媒体用的光点产生装置 Expired - Fee Related CN1109337C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP236476/1997 1997-08-19
JP9236476A JPH1166593A (ja) 1997-08-19 1997-08-19 記録媒体用光スポット生成装置

Publications (2)

Publication Number Publication Date
CN1267386A CN1267386A (zh) 2000-09-20
CN1109337C true CN1109337C (zh) 2003-05-21

Family

ID=17001311

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98808282A Expired - Fee Related CN1109337C (zh) 1997-08-19 1998-08-05 记录媒体用的光点产生装置

Country Status (9)

Country Link
US (1) US6538976B1 (enExample)
EP (1) EP1016080B1 (enExample)
JP (1) JPH1166593A (enExample)
KR (1) KR20010022794A (enExample)
CN (1) CN1109337C (enExample)
DE (1) DE69809273T2 (enExample)
MY (1) MY132833A (enExample)
TW (1) TW376516B (enExample)
WO (1) WO1999009553A1 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007018627A (ja) * 2005-07-08 2007-01-25 Konica Minolta Opto Inc 光ピックアップ装置、レンズユニット、及び、レンズユニットの調整方法
CN104282319B (zh) * 2014-06-25 2018-02-02 东莞华强信息科技有限公司 对光学拾音头中的物镜进行位置调整的方法和装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823334A (en) * 1985-11-27 1989-04-18 Matsushita Electric Industrial Co., Ltd. Optical head with easily adjustable collimator having two lens components
JPH0752522B2 (ja) * 1986-10-21 1995-06-05 三菱電機株式会社 光学ヘッド装置
EP0339722B1 (en) 1988-04-26 1993-10-06 Koninklijke Philips Electronics N.V. Arrangement for optically scanning a magneto-optical carrier

Also Published As

Publication number Publication date
EP1016080B1 (en) 2002-11-06
KR20010022794A (ko) 2001-03-26
CN1267386A (zh) 2000-09-20
US6538976B1 (en) 2003-03-25
DE69809273T2 (de) 2003-07-10
TW376516B (en) 1999-12-11
DE69809273D1 (de) 2002-12-12
EP1016080A1 (en) 2000-07-05
HK1027893A1 (en) 2001-01-23
WO1999009553A1 (en) 1999-02-25
MY132833A (en) 2007-10-31
JPH1166593A (ja) 1999-03-09

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PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C19 Lapse of patent right due to non-payment of the annual fee
CF01 Termination of patent right due to non-payment of annual fee