DE69124887T2 - Vorrichtung zum Abtasten einer Informationsfläche mit optischer Strahlung - Google Patents

Vorrichtung zum Abtasten einer Informationsfläche mit optischer Strahlung

Info

Publication number
DE69124887T2
DE69124887T2 DE69124887T DE69124887T DE69124887T2 DE 69124887 T2 DE69124887 T2 DE 69124887T2 DE 69124887 T DE69124887 T DE 69124887T DE 69124887 T DE69124887 T DE 69124887T DE 69124887 T2 DE69124887 T2 DE 69124887T2
Authority
DE
Germany
Prior art keywords
scanning
information area
optical radiation
radiation source
scanning beam
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
DE69124887T
Other languages
English (en)
Other versions
DE69124887D1 (de
Inventor
Willem Gerard Opheij
Henricus Mathias Marie Kessels
Christiaan Hendrik Fran Velzel
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.)
Koninklijke Philips NV
Original Assignee
Philips Electronics NV
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 Philips Electronics NV filed Critical Philips Electronics NV
Application granted granted Critical
Publication of DE69124887D1 publication Critical patent/DE69124887D1/de
Publication of DE69124887T2 publication Critical patent/DE69124887T2/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
    • G11B7/135—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
    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0901—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for track following only
    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0909—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only by astigmatic methods
    • 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
    • G11B7/09—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
    • G11B7/0908—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam or focus plane for the purpose of maintaining alignment of the light beam relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following for focusing only
    • G11B7/0916—Foucault or knife-edge methods
    • 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
DE69124887T 1990-09-12 1991-09-06 Vorrichtung zum Abtasten einer Informationsfläche mit optischer Strahlung Expired - Fee Related DE69124887T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9002007A NL9002007A (nl) 1990-09-12 1990-09-12 Inrichting voor het met optische straling aftasten van een informatievlak.

Publications (2)

Publication Number Publication Date
DE69124887D1 DE69124887D1 (de) 1997-04-10
DE69124887T2 true DE69124887T2 (de) 1997-09-04

Family

ID=19857668

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69124887T Expired - Fee Related DE69124887T2 (de) 1990-09-12 1991-09-06 Vorrichtung zum Abtasten einer Informationsfläche mit optischer Strahlung

Country Status (8)

Country Link
US (1) US5144131A (de)
EP (1) EP0475523B1 (de)
JP (1) JPH04232621A (de)
KR (1) KR100255264B1 (de)
CN (1) CN1031368C (de)
AT (1) ATE149727T1 (de)
DE (1) DE69124887T2 (de)
NL (1) NL9002007A (de)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5490133A (en) * 1990-10-05 1996-02-06 Hitachi, Ltd. Optical information processing apparatus and method of controlling position of optical spot and reproducing signals
JP2003022561A (ja) * 1999-01-27 2003-01-24 Matsushita Electric Ind Co Ltd 光学ヘッド
KR100555478B1 (ko) * 1999-06-18 2006-03-03 삼성전자주식회사 안정된 오차신호 검출 가능한 광픽업장치
JP2001043544A (ja) * 1999-07-28 2001-02-16 Nec Corp 光ヘッド装置
TW501116B (en) * 2000-07-05 2002-09-01 Matsushita Electric Ind Co Ltd Optical device, optical semiconductor device, and optical information processor comprising them
EP1938320A2 (de) * 2005-09-19 2008-07-02 Arima Devices Corporation Optischer lesekopf mit irrtumskorrektur
CN109163659A (zh) * 2018-09-12 2019-01-08 清华大学深圳研究生院 检测系统、拼接系统、检测方法、拼接方法与拼接光栅尺

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58106863A (ja) * 1981-12-18 1983-06-25 Sanyo Electric Co Ltd 集積型半導体受光装置
NL8601974A (nl) * 1986-08-01 1988-03-01 Philips Nv Inrichting voor het met optische straling aftasten van een stralingsreflekterend informatievlak.
JPS6453359A (en) * 1987-08-24 1989-03-01 Sharp Kk Optical pickup device
NL8702245A (nl) * 1987-09-21 1989-04-17 Philips Nv Inrichting voor het met optische straling aftasten van een stralingsreflekterend informatievlak.
US4929823A (en) * 1987-10-05 1990-05-29 Matsushita Electric Industrial Co., Ltd. Optical pickup head with holographic servo signal detection using a spot size detection system
DE3887657T2 (de) * 1987-11-30 1994-05-11 Nec Corp Optischer Kopf.
NL8703041A (nl) * 1987-12-16 1989-07-17 Philips Nv Optische aftasteenheid en een optische uitlees- en/of inschrijfinrichting daarvan voorzien.
JPH01243257A (ja) * 1988-03-23 1989-09-27 Seiko Epson Corp 光ピックアップ
EP0351953B1 (de) * 1988-06-20 1995-08-16 Mitsubishi Denki Kabushiki Kaisha Optischer Kopf mit Kippkorrekturservomechanismus
US4983017A (en) * 1988-08-02 1991-01-08 Sharp Kabushiki Kaisha Optical head device for reading information stored in a recording medium
JPH0758559B2 (ja) * 1988-09-02 1995-06-21 シャープ株式会社 光ピックアップ装置
US5049732A (en) * 1988-10-21 1991-09-17 Sharp Kabushiki Kaisha Optical pickup device with diffraction device
NL8802988A (nl) * 1988-12-05 1990-07-02 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
JPH083910B2 (ja) * 1989-01-13 1996-01-17 シャープ株式会社 光ピックアップ装置

Also Published As

Publication number Publication date
US5144131A (en) 1992-09-01
CN1031368C (zh) 1996-03-20
EP0475523B1 (de) 1997-03-05
EP0475523A1 (de) 1992-03-18
CN1060912A (zh) 1992-05-06
NL9002007A (nl) 1992-04-01
JPH04232621A (ja) 1992-08-20
DE69124887D1 (de) 1997-04-10
KR100255264B1 (ko) 2000-05-01
KR920006776A (ko) 1992-04-28
ATE149727T1 (de) 1997-03-15

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: KONINKLIJKE PHILIPS ELECTRONICS N.V., EINDHOVEN, N

8339 Ceased/non-payment of the annual fee