NL9002007A - Inrichting voor het met optische straling aftasten van een informatievlak. - Google Patents

Inrichting voor het met optische straling aftasten van een informatievlak. Download PDF

Info

Publication number
NL9002007A
NL9002007A NL9002007A NL9002007A NL9002007A NL 9002007 A NL9002007 A NL 9002007A NL 9002007 A NL9002007 A NL 9002007A NL 9002007 A NL9002007 A NL 9002007A NL 9002007 A NL9002007 A NL 9002007A
Authority
NL
Netherlands
Prior art keywords
tracking
radiation
scanning
beams
scanning beam
Prior art date
Application number
NL9002007A
Other languages
English (en)
Dutch (nl)
Original Assignee
Philips 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 Nv filed Critical Philips Nv
Priority to NL9002007A priority Critical patent/NL9002007A/nl
Priority to US07/718,734 priority patent/US5144131A/en
Priority to DE69124887T priority patent/DE69124887T2/de
Priority to EP91202281A priority patent/EP0475523B1/en
Priority to AT91202281T priority patent/ATE149727T1/de
Priority to JP3229002A priority patent/JPH04232621A/ja
Priority to CN91109574A priority patent/CN1031368C/zh
Priority to KR1019910015660A priority patent/KR100255264B1/ko
Publication of NL9002007A publication Critical patent/NL9002007A/nl

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

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Optical Head (AREA)
  • Mechanical Optical Scanning Systems (AREA)
NL9002007A 1990-09-12 1990-09-12 Inrichting voor het met optische straling aftasten van een informatievlak. NL9002007A (nl)

Priority Applications (8)

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.
US07/718,734 US5144131A (en) 1990-09-12 1991-06-21 Device for optically scanning an information plane detecting border portions of light beam
DE69124887T DE69124887T2 (de) 1990-09-12 1991-09-06 Vorrichtung zum Abtasten einer Informationsfläche mit optischer Strahlung
EP91202281A EP0475523B1 (en) 1990-09-12 1991-09-06 Device for optically scanning an information plane
AT91202281T ATE149727T1 (de) 1990-09-12 1991-09-06 Vorrichtung zum abtasten einer informationsfläche mit optischer strahlung
JP3229002A JPH04232621A (ja) 1990-09-12 1991-09-09 光学式走査装置
CN91109574A CN1031368C (zh) 1990-09-12 1991-09-09 信息面的光学扫描装置
KR1019910015660A KR100255264B1 (ko) 1990-09-12 1991-09-09 정보 평면 광학 주사 장치

Applications Claiming Priority (2)

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.
NL9002007 1990-09-12

Publications (1)

Publication Number Publication Date
NL9002007A true NL9002007A (nl) 1992-04-01

Family

ID=19857668

Family Applications (1)

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

Country Status (8)

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

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 (en) * 1987-10-05 1993-08-04 Matsushita Electric Industrial Co., Ltd. Optical pickup head
EP0318912B1 (en) * 1987-11-30 1994-02-02 Nec Corporation An optical head
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 (en) 1997-03-05
CN1060912A (zh) 1992-05-06
EP0475523A1 (en) 1992-03-18
ATE149727T1 (de) 1997-03-15
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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A1B A search report has been drawn up
BV The patent application has lapsed