DE19530740A1 - Optische Abtasteinrichtung - Google Patents

Optische Abtasteinrichtung

Info

Publication number
DE19530740A1
DE19530740A1 DE19530740A DE19530740A DE19530740A1 DE 19530740 A1 DE19530740 A1 DE 19530740A1 DE 19530740 A DE19530740 A DE 19530740A DE 19530740 A DE19530740 A DE 19530740A DE 19530740 A1 DE19530740 A1 DE 19530740A1
Authority
DE
Germany
Prior art keywords
scanning
holographic optical
hoe
information
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.)
Withdrawn
Application number
DE19530740A
Other languages
German (de)
English (en)
Inventor
Dang Dipl Phys Lieu-Kim
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.)
Deutsche Thomson Brandt GmbH
Original Assignee
Deutsche 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 Deutsche Thomson Brandt GmbH filed Critical Deutsche Thomson Brandt GmbH
Priority to DE19530740A priority Critical patent/DE19530740A1/de
Priority to US08/662,626 priority patent/US5777976A/en
Priority to DE59608186T priority patent/DE59608186D1/de
Priority to EP96112695A priority patent/EP0762401B1/de
Priority to CN96109285A priority patent/CN1096065C/zh
Priority to MYPI96003418A priority patent/MY116668A/en
Priority to JP23735796A priority patent/JP3837784B2/ja
Priority to KR1019960034790A priority patent/KR100422078B1/ko
Publication of DE19530740A1 publication Critical patent/DE19530740A1/de
Withdrawn legal-status Critical Current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)
DE19530740A 1995-08-22 1995-08-22 Optische Abtasteinrichtung Withdrawn DE19530740A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE19530740A DE19530740A1 (de) 1995-08-22 1995-08-22 Optische Abtasteinrichtung
US08/662,626 US5777976A (en) 1995-08-22 1996-06-13 Holographic element diffracting a reflected light beam onto a single light spot of a detector
DE59608186T DE59608186D1 (de) 1995-08-22 1996-08-07 Optische Abtasteinrichtung
EP96112695A EP0762401B1 (de) 1995-08-22 1996-08-07 Optische Abtasteinrichtung
CN96109285A CN1096065C (zh) 1995-08-22 1996-08-09 光学扫描装置
MYPI96003418A MY116668A (en) 1995-08-22 1996-08-20 Optical scanning device
JP23735796A JP3837784B2 (ja) 1995-08-22 1996-08-21 光学走査デバイス
KR1019960034790A KR100422078B1 (ko) 1995-08-22 1996-08-22 광주사디바이스

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
DE19530740A1 true DE19530740A1 (de) 1997-02-27

Family

ID=7770024

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19530740A Withdrawn DE19530740A1 (de) 1995-08-22 1995-08-22 Optische Abtasteinrichtung
DE59608186T Expired - Lifetime DE59608186D1 (de) 1995-08-22 1996-08-07 Optische Abtasteinrichtung

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59608186T Expired - Lifetime DE59608186D1 (de) 1995-08-22 1996-08-07 Optische Abtasteinrichtung

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

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228620A2 (en) * 1985-12-10 1987-07-15 Nec Corporation Optical head comprising a diffraction grating for directing two or more diffracted beams to optical detectors
EP0402123A2 (en) * 1989-06-06 1990-12-12 Sharp Kabushiki Kaisha Optical head device
EP0539354A2 (en) * 1987-08-24 1993-04-28 Sharp Kabushiki Kaisha Optical pickup apparatus
US5231620A (en) * 1990-05-30 1993-07-27 Ricoh Company, Ltd. Magneto-optical recording/reproducing apparatus with light beam splitting means
EP0554092A1 (en) * 1992-01-28 1993-08-04 Sharp Kabushiki Kaisha An optical information recording and reproducing device

Family Cites Families (7)

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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0228620A2 (en) * 1985-12-10 1987-07-15 Nec Corporation Optical head comprising a diffraction grating for directing two or more diffracted beams to optical detectors
EP0539354A2 (en) * 1987-08-24 1993-04-28 Sharp Kabushiki Kaisha Optical pickup apparatus
EP0402123A2 (en) * 1989-06-06 1990-12-12 Sharp Kabushiki Kaisha Optical head device
US5231620A (en) * 1990-05-30 1993-07-27 Ricoh Company, Ltd. Magneto-optical recording/reproducing apparatus with light beam splitting means
EP0554092A1 (en) * 1992-01-28 1993-08-04 Sharp Kabushiki Kaisha An optical information recording and reproducing device

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OHBA,Akitomo, et.al.: Reflection polarizing holographic optical element for compact magnetooptical disk heads. In: Applied Optics, Vol.29, No.34, 1.Dec.1990, S.5131- S.5133 *

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
KR100422078B1 (ko) 2004-06-12
EP0762401B1 (de) 2001-11-14

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Legal Events

Date Code Title Description
OM8 Search report available as to paragraph 43 lit. 1 sentence 1 patent law
8120 Willingness to grant licences paragraph 23
8141 Disposal/no request for examination