DE69217453T2 - Optisches Informationsaufnahmegerät mit abgetrennt-eingeordneten Fotodetektoreinrichtungen - Google Patents

Optisches Informationsaufnahmegerät mit abgetrennt-eingeordneten Fotodetektoreinrichtungen

Info

Publication number
DE69217453T2
DE69217453T2 DE1992617453 DE69217453T DE69217453T2 DE 69217453 T2 DE69217453 T2 DE 69217453T2 DE 1992617453 DE1992617453 DE 1992617453 DE 69217453 T DE69217453 T DE 69217453T DE 69217453 T2 DE69217453 T2 DE 69217453T2
Authority
DE
Germany
Prior art keywords
separated
information recording
recording device
optical information
photo detector
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
DE1992617453
Other languages
English (en)
Other versions
DE69217453D1 (de
Inventor
Shinichi Takahashi
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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
Priority claimed from JP3301772A external-priority patent/JP2975466B2/ja
Priority claimed from JP03301773A external-priority patent/JP3109877B2/ja
Priority claimed from JP30177491A external-priority patent/JP3246608B2/ja
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of DE69217453D1 publication Critical patent/DE69217453D1/de
Application granted granted Critical
Publication of DE69217453T2 publication Critical patent/DE69217453T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G11B7/13—Optical detectors therefor
    • G11B7/133—Shape of individual detector 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
    • G11B7/1359—Single prisms

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
DE1992617453 1991-11-18 1992-07-30 Optisches Informationsaufnahmegerät mit abgetrennt-eingeordneten Fotodetektoreinrichtungen Expired - Fee Related DE69217453T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3301772A JP2975466B2 (ja) 1991-11-18 1991-11-18 光学式情報再生装置
JP03301773A JP3109877B2 (ja) 1991-11-18 1991-11-18 光学式情報再生装置
JP30177491A JP3246608B2 (ja) 1991-11-18 1991-11-18 光学式情報再生装置

Publications (2)

Publication Number Publication Date
DE69217453D1 DE69217453D1 (de) 1997-03-27
DE69217453T2 true DE69217453T2 (de) 1997-08-28

Family

ID=27338488

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1992617453 Expired - Fee Related DE69217453T2 (de) 1991-11-18 1992-07-30 Optisches Informationsaufnahmegerät mit abgetrennt-eingeordneten Fotodetektoreinrichtungen

Country Status (2)

Country Link
EP (1) EP0543481B1 (de)
DE (1) DE69217453T2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5787058A (en) * 1995-05-31 1998-07-28 Daewoo Electronics Co., Ltd. Optical pickup apparatus utilizing a polygonal prism
KR19980029874A (ko) * 1996-10-28 1998-07-25 배순훈 광 픽-업장치
US6478452B1 (en) 2000-01-19 2002-11-12 Coherent, Inc. Diode-laser line-illuminating system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61122944A (ja) * 1984-11-20 1986-06-10 Konishiroku Photo Ind Co Ltd 光学式情報読取装置
DE3776945D1 (de) * 1986-04-18 1992-04-09 Mitsubishi Electric Corp Optischer kopf.
KR900008380B1 (ko) * 1986-07-01 1990-11-17 미쓰비시덴기 가부시기 가이샤 광학식 헤드장치
JPH077510B2 (ja) * 1988-05-31 1995-01-30 アルプス電気株式会社 光学式ピックアップにおけるビームスプリッタの固定構造
JPH06103543B2 (ja) * 1988-12-31 1994-12-14 三星電子株式会社 レーザピックアップ

Also Published As

Publication number Publication date
DE69217453D1 (de) 1997-03-27
EP0543481A2 (de) 1993-05-26
EP0543481B1 (de) 1997-02-12
EP0543481A3 (en) 1993-07-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee