KR100422078B1 - 광주사디바이스 - Google Patents

광주사디바이스 Download PDF

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Publication number
KR100422078B1
KR100422078B1 KR1019960034790A KR19960034790A KR100422078B1 KR 100422078 B1 KR100422078 B1 KR 100422078B1 KR 1019960034790 A KR1019960034790 A KR 1019960034790A KR 19960034790 A KR19960034790 A KR 19960034790A KR 100422078 B1 KR100422078 B1 KR 100422078B1
Authority
KR
South Korea
Prior art keywords
scanning
holographic optical
optical element
dimensional grating
hoe
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
KR1019960034790A
Other languages
English (en)
Korean (ko)
Other versions
KR970012390A (ko
Inventor
킴 당 리유
Original Assignee
도이체 톰손-브란트 게엠베하
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 도이체 톰손-브란트 게엠베하 filed Critical 도이체 톰손-브란트 게엠베하
Publication of KR970012390A publication Critical patent/KR970012390A/ko
Application granted granted Critical
Publication of KR100422078B1 publication Critical patent/KR100422078B1/ko
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
    • G11B7/08—Disposition or mounting of heads or light sources relatively to record carriers
    • 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
    • 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
    • G11B7/1381—Non-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)
KR1019960034790A 1995-08-22 1996-08-22 광주사디바이스 Expired - Fee Related KR100422078B1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19530740.2 1995-08-22
DE19530740A DE19530740A1 (de) 1995-08-22 1995-08-22 Optische Abtasteinrichtung

Publications (2)

Publication Number Publication Date
KR970012390A KR970012390A (ko) 1997-03-29
KR100422078B1 true KR100422078B1 (ko) 2004-06-12

Family

ID=7770024

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960034790A Expired - Fee Related KR100422078B1 (ko) 1995-08-22 1996-08-22 광주사디바이스

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
EP0228620B1 (en) * 1985-12-10 1991-06-05 Nec Corporation Optical head comprising a diffraction grating for directing two or more diffracted beams to optical detectors
EP0305169B1 (en) * 1987-08-24 1994-05-11 Sharp Kabushiki Kaisha Optical pickup apparatus and optical grating assembly therefor
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
EP0581519B1 (en) * 1992-07-30 1998-05-27 Matsushita Electric Industrial Co., Ltd. Optical pick-up apparatus
KR940020325A (ko) * 1993-02-08 1994-09-15 이헌조 광픽업장치

Also Published As

Publication number Publication date
CN1146596A (zh) 1997-04-02
CN1096065C (zh) 2002-12-11
DE59608186D1 (de) 2001-12-20
JPH09120574A (ja) 1997-05-06
EP0762401A1 (de) 1997-03-12
KR970012390A (ko) 1997-03-29
JP3837784B2 (ja) 2006-10-25
US5777976A (en) 1998-07-07
MY116668A (en) 2004-03-31
EP0762401B1 (de) 2001-11-14
DE19530740A1 (de) 1997-02-27

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