JPH1166593A - 記録媒体用光スポット生成装置 - Google Patents

記録媒体用光スポット生成装置

Info

Publication number
JPH1166593A
JPH1166593A JP9236476A JP23647697A JPH1166593A JP H1166593 A JPH1166593 A JP H1166593A JP 9236476 A JP9236476 A JP 9236476A JP 23647697 A JP23647697 A JP 23647697A JP H1166593 A JPH1166593 A JP H1166593A
Authority
JP
Japan
Prior art keywords
optical axis
track
light
collimator
optical
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.)
Pending
Application number
JP9236476A
Other languages
English (en)
Japanese (ja)
Other versions
JPH1166593A5 (enExample
Inventor
Hiroshi Miyazawa
寛 宮澤
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
Priority to JP9236476A priority Critical patent/JPH1166593A/ja
Priority to TW087111884A priority patent/TW376516B/zh
Priority to HK00106832.9A priority patent/HK1027893B/xx
Priority to KR1020007001394A priority patent/KR20010022794A/ko
Priority to CN98808282A priority patent/CN1109337C/zh
Priority to PCT/JP1998/003486 priority patent/WO1999009553A1/en
Priority to EP98936666A priority patent/EP1016080B1/en
Priority to DE69809273T priority patent/DE69809273T2/de
Priority to US09/486,040 priority patent/US6538976B1/en
Priority to MYPI98003765A priority patent/MY132833A/en
Publication of JPH1166593A publication Critical patent/JPH1166593A/ja
Publication of JPH1166593A5 publication Critical patent/JPH1166593A5/ja
Pending 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
    • G11B7/135—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)
JP9236476A 1997-08-19 1997-08-19 記録媒体用光スポット生成装置 Pending JPH1166593A (ja)

Priority Applications (10)

Application Number Priority Date Filing Date Title
JP9236476A JPH1166593A (ja) 1997-08-19 1997-08-19 記録媒体用光スポット生成装置
TW087111884A TW376516B (en) 1997-08-19 1998-07-21 Optical spot generation device for recording medium
HK00106832.9A HK1027893B (en) 1997-08-19 1998-08-05 Optical spot generation device for recording medium
KR1020007001394A KR20010022794A (ko) 1997-08-19 1998-08-05 기록 매체용 광 스폿 형성 장치
CN98808282A CN1109337C (zh) 1997-08-19 1998-08-05 记录媒体用的光点产生装置
PCT/JP1998/003486 WO1999009553A1 (en) 1997-08-19 1998-08-05 Optical spot generation device for recording medium
EP98936666A EP1016080B1 (en) 1997-08-19 1998-08-05 Optical spot generation device for recording medium
DE69809273T DE69809273T2 (de) 1997-08-19 1998-08-05 Vorrichtung zur erzeugung von optischen lichtflecken für aufzeichnungsmedium
US09/486,040 US6538976B1 (en) 1997-08-19 1998-08-05 Optical spot generation device for recording medium
MYPI98003765A MY132833A (en) 1997-08-19 1998-08-18 Optical spot generation device for recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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
JPH1166593A true JPH1166593A (ja) 1999-03-09
JPH1166593A5 JPH1166593A5 (enExample) 2004-07-15

Family

ID=17001311

Family Applications (1)

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

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)

Cited By (1)

* 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

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

Cited By (1)

* 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

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
CN1109337C (zh) 2003-05-21
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

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Legal Events

Date Code Title Description
A02 Decision of refusal

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Effective date: 20040309