MY116668A - Optical scanning device - Google Patents

Optical scanning device

Info

Publication number
MY116668A
MY116668A MYPI96003418A MYPI9603418A MY116668A MY 116668 A MY116668 A MY 116668A MY PI96003418 A MYPI96003418 A MY PI96003418A MY PI9603418 A MYPI9603418 A MY PI9603418A MY 116668 A MY116668 A MY 116668A
Authority
MY
Malaysia
Prior art keywords
scanning device
optical scanning
optical
scanning
influenced
Prior art date
Application number
MYPI96003418A
Other languages
English (en)
Inventor
Lieu Kim Dang
Original Assignee
Thomson Brandt Gmbh
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 Thomson Brandt Gmbh filed Critical Thomson Brandt Gmbh
Publication of MY116668A publication Critical patent/MY116668A/en

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1353Diffractive elements, e.g. holograms or gratings
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372Lenses
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/12Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/135Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1381Non-lens elements for altering the properties of the beam, e.g. knife edges, slits, filters or stops

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
MYPI96003418A 1995-08-22 1996-08-20 Optical scanning device MY116668A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19530740A DE19530740A1 (de) 1995-08-22 1995-08-22 Optische Abtasteinrichtung

Publications (1)

Publication Number Publication Date
MY116668A true MY116668A (en) 2004-03-31

Family

ID=7770024

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI96003418A MY116668A (en) 1995-08-22 1996-08-20 Optical scanning device

Country Status (7)

Country Link
US (1) US5777976A (https=)
EP (1) EP0762401B1 (https=)
JP (1) JP3837784B2 (https=)
KR (1) KR100422078B1 (https=)
CN (1) CN1096065C (https=)
DE (2) DE19530740A1 (https=)
MY (1) MY116668A (https=)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100754158B1 (ko) * 2000-12-08 2007-09-03 삼성전자주식회사 구면수차 검출 및/또는 보정 가능한 광픽업장치
KR100555939B1 (ko) * 2003-06-30 2006-03-03 주식회사 대우일렉트로닉스 홀로그래픽 디지털 데이터 저장 시스템용 디스크 정렬장치 및 그 방법
JP4277005B2 (ja) * 2005-01-26 2009-06-10 パナソニック株式会社 光ピックアップ装置
JP4449912B2 (ja) * 2006-01-27 2010-04-14 日本ビクター株式会社 光ピックアップ
DE102006024356B4 (de) * 2006-05-19 2016-09-29 Seereal Technologies S.A. Holographische Projektionsvorrichtung zur Rekonstruktion von Szenen und Verfahren zur holographischen Rekonstruktion

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3679648D1 (de) * 1985-12-10 1991-07-11 Nec Corp Optischer kopf mit einem beugungsgitter zum richten von zwei oder mehreren gebeugten lichtstrahlen auf optische detektoren.
DE3855936T2 (de) * 1987-08-24 1998-01-02 Sharp Kk Optische Abtastvorrichtung
JPH01151022A (ja) * 1987-12-09 1989-06-13 Sharp Corp 光ピックアップ装置
NL8802988A (nl) * 1988-12-05 1990-07-02 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
KR940001999B1 (ko) * 1989-06-06 1994-03-12 샤프 가부시끼가이샤 광 픽업장치
EP0452793B1 (en) * 1990-04-12 1998-01-28 Matsushita Electric Industrial Co., Ltd. Optical head having a hologram associated with the objective lens
JP2656136B2 (ja) * 1990-05-29 1997-09-24 シャープ株式会社 光ピックアップ装置
JP3155287B2 (ja) * 1990-05-30 2001-04-09 株式会社リコー 光情報記録再生装置
JP2776487B2 (ja) * 1992-01-28 1998-07-16 シャープ株式会社 光学式情報記録再生装置
US5410468A (en) * 1992-06-26 1995-04-25 Matsushita Electric Industrial Co., Ltd. Optical pick-up apparatus
DE69318770T2 (de) * 1992-07-30 1998-10-15 Matsushita Electric Ind Co Ltd Optisches Wiedergabegerät
KR940020325A (ko) * 1993-02-08 1994-09-15 이헌조 광픽업장치

Also Published As

Publication number Publication date
CN1146596A (zh) 1997-04-02
JPH09120574A (ja) 1997-05-06
CN1096065C (zh) 2002-12-11
JP3837784B2 (ja) 2006-10-25
US5777976A (en) 1998-07-07
DE59608186D1 (de) 2001-12-20
EP0762401B1 (de) 2001-11-14
KR970012390A (ko) 1997-03-29
DE19530740A1 (de) 1997-02-27
KR100422078B1 (ko) 2004-06-12
EP0762401A1 (de) 1997-03-12

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