ATE149727T1 - Vorrichtung zum abtasten einer informationsfläche mit optischer strahlung - Google Patents

Vorrichtung zum abtasten einer informationsfläche mit optischer strahlung

Info

Publication number
ATE149727T1
ATE149727T1 AT91202281T AT91202281T ATE149727T1 AT E149727 T1 ATE149727 T1 AT E149727T1 AT 91202281 T AT91202281 T AT 91202281T AT 91202281 T AT91202281 T AT 91202281T AT E149727 T1 ATE149727 T1 AT E149727T1
Authority
AT
Austria
Prior art keywords
scanning
optical radiation
information surface
radiation source
scanning beam
Prior art date
Application number
AT91202281T
Other languages
English (en)
Inventor
Willem Gerard Opheij
Henricus Mathias Marie Kessels
Holstlaan
Christiaan Hendrik Fran Velzel
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 ATE149727T1 publication Critical patent/ATE149727T1/de

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
    • 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
    • G11B7/12—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
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Mechanical Optical Scanning Systems (AREA)
AT91202281T 1990-09-12 1991-09-06 Vorrichtung zum abtasten einer informationsfläche mit optischer strahlung ATE149727T1 (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 (1)

Publication Number Publication Date
ATE149727T1 true ATE149727T1 (de) 1997-03-15

Family

ID=19857668

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91202281T ATE149727T1 (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
WO2007034335A2 (en) * 2005-09-19 2007-03-29 Arima Devices Corporation An optical pickup having aberration correction
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.
EP0311340B1 (de) * 1987-10-05 1993-08-04 Matsushita Electric Industrial Co., Ltd. Optische Lesekopf
EP0318912B1 (de) * 1987-11-30 1994-02-02 Nec Corporation 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
DE68923833T2 (de) * 1988-06-20 1996-06-13 Mitsubishi Electric Corp 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
EP0475523B1 (de) 1997-03-05
NL9002007A (nl) 1992-04-01
CN1060912A (zh) 1992-05-06
EP0475523A1 (de) 1992-03-18
DE69124887T2 (de) 1997-09-04
KR920006776A (ko) 1992-04-28
JPH04232621A (ja) 1992-08-20
US5144131A (en) 1992-09-01
CN1031368C (zh) 1996-03-20
DE69124887D1 (de) 1997-04-10
KR100255264B1 (ko) 2000-05-01

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Legal Events

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