DE69514849D1 - Optisches Abtastsystem - Google Patents

Optisches Abtastsystem

Info

Publication number
DE69514849D1
DE69514849D1 DE69514849T DE69514849T DE69514849D1 DE 69514849 D1 DE69514849 D1 DE 69514849D1 DE 69514849 T DE69514849 T DE 69514849T DE 69514849 T DE69514849 T DE 69514849T DE 69514849 D1 DE69514849 D1 DE 69514849D1
Authority
DE
Germany
Prior art keywords
optical scanning
scanning system
optical
scanning
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 - Lifetime
Application number
DE69514849T
Other languages
English (en)
Other versions
DE69514849T2 (de
Inventor
Naoharu Yanagawa
Fumihiko Sano
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
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Application granted granted Critical
Publication of DE69514849D1 publication Critical patent/DE69514849D1/de
Publication of DE69514849T2 publication Critical patent/DE69514849T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/1356—Double or multiple prisms, i.e. having two or more prisms in cooperation
DE69514849T 1994-03-11 1995-03-03 Optisches Abtastsystem Expired - Lifetime DE69514849T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP04158594A JP3392206B2 (ja) 1994-03-11 1994-03-11 光ピックアップ

Publications (2)

Publication Number Publication Date
DE69514849D1 true DE69514849D1 (de) 2000-03-09
DE69514849T2 DE69514849T2 (de) 2000-08-17

Family

ID=12612516

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69514849T Expired - Lifetime DE69514849T2 (de) 1994-03-11 1995-03-03 Optisches Abtastsystem

Country Status (4)

Country Link
US (1) US5555538A (de)
EP (1) EP0671732B1 (de)
JP (1) JP3392206B2 (de)
DE (1) DE69514849T2 (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08321088A (ja) * 1995-05-25 1996-12-03 Sony Corp 光学ピックアップ
GB2315910A (en) * 1996-07-31 1998-02-11 Daewoo Electronics Co Ltd Optical pickup system for reading information recorded on an optical disk
JP2002100068A (ja) 2000-09-26 2002-04-05 Pioneer Electronic Corp 光ピックアップ装置
JPWO2005066948A1 (ja) * 2004-01-07 2009-05-07 ソニー株式会社 光ディスク装置
JP2006209896A (ja) * 2005-01-31 2006-08-10 Fujinon Sano Kk 情報記録再生装置
US7889616B2 (en) * 2006-03-03 2011-02-15 Seagate Technology Llc Polarization state detector systems and methods for read-out of multilevel oriented nano-structure optical media
JPWO2012056827A1 (ja) * 2010-10-27 2014-03-20 コニカミノルタ株式会社 光ピックアップ装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4627688A (en) * 1983-07-01 1986-12-09 Sano Kiko Co., Ltd. Beam splitter
US4721850A (en) * 1985-03-06 1988-01-26 Olympus Optical Co., Ltd. Optical pickup device having a detector for detecting the light emitting intensity variation of a semiconductor light emitting element
US4973836A (en) * 1987-03-31 1990-11-27 Canon Kabushiki Kaisha Optical pickup device including a beam splitter having an inclined plane
JPH02287932A (ja) * 1989-04-28 1990-11-28 Toshiba Corp 光学ヘッド
US5115420A (en) * 1990-01-16 1992-05-19 International Business Machines Corporation Utilizing wasted laser light in optical systems

Also Published As

Publication number Publication date
EP0671732B1 (de) 2000-02-02
DE69514849T2 (de) 2000-08-17
US5555538A (en) 1996-09-10
EP0671732A1 (de) 1995-09-13
JPH07249233A (ja) 1995-09-26
JP3392206B2 (ja) 2003-03-31

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Legal Events

Date Code Title Description
8320 Willingness to grant licences declared (paragraph 23)
8364 No opposition during term of opposition