HK147095A - Apparatus for optically scanning an information plane - Google Patents

Apparatus for optically scanning an information plane

Info

Publication number
HK147095A
HK147095A HK147095A HK147095A HK147095A HK 147095 A HK147095 A HK 147095A HK 147095 A HK147095 A HK 147095A HK 147095 A HK147095 A HK 147095A HK 147095 A HK147095 A HK 147095A
Authority
HK
Hong Kong
Prior art keywords
grating
radiation
focussed
gratings
sub
Prior art date
Application number
HK147095A
Other languages
English (en)
Inventor
Andreas Johannes Mar Bressers
Peter Coops
Adrianus Johannes Duijvestijn
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
Publication of HK147095A publication Critical patent/HK147095A/xx

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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/16—Beam splitting or combining systems used as aids for focusing
    • 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
    • G11B7/0908—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
    • G11B7/08—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
    • G11B7/094—Methods and circuits for servo offset compensation
    • 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
HK147095A 1987-07-24 1995-09-14 Apparatus for optically scanning an information plane HK147095A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8701749A NL8701749A (nl) 1987-07-24 1987-07-24 Inrichting voor het met optische straling aftasten van een informatievlak.

Publications (1)

Publication Number Publication Date
HK147095A true HK147095A (en) 1995-09-22

Family

ID=19850368

Family Applications (1)

Application Number Title Priority Date Filing Date
HK147095A HK147095A (en) 1987-07-24 1995-09-14 Apparatus for optically scanning an information plane

Country Status (14)

Country Link
US (1) US4829506A (nl)
EP (1) EP0300570B1 (nl)
JP (1) JP2683918B2 (nl)
KR (1) KR970005985B1 (nl)
CN (1) CN1015842B (nl)
AT (1) ATE81560T1 (nl)
AU (1) AU602646B2 (nl)
CZ (1) CZ280821B6 (nl)
DE (1) DE3875294T2 (nl)
ES (1) ES2036255T3 (nl)
HK (1) HK147095A (nl)
NL (1) NL8701749A (nl)
SG (1) SG28345G (nl)
SK (1) SK278407B6 (nl)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3855936T2 (de) * 1987-08-24 1998-01-02 Sharp Kk Optische Abtastvorrichtung
US4907847A (en) * 1987-09-28 1990-03-13 Nec Home Electronics Ltd. Optical pickup and hologram therefor
US5066138A (en) * 1988-06-16 1991-11-19 Mitsubishi Denki Kabushiki Kaisha Optical head apparatus
US4993789A (en) * 1988-09-15 1991-02-19 Jonathan R. Biles Dual wavelength polarization selective holographic optical element
US5511050A (en) * 1988-09-21 1996-04-23 Hitachi, Ltd. Focus error detecting method and optical head using the same
US5049732A (en) * 1988-10-21 1991-09-17 Sharp Kabushiki Kaisha Optical pickup device with diffraction device
NL8802689A (nl) * 1988-11-03 1990-06-01 Koninkl Philips Electronics Nv Inrichting voor het met optische straling aftasten van een stralingsreflekterend oppervlak.
NL8803055A (nl) * 1988-12-13 1990-07-02 Philips Nv Optische aftastinrichting, spiegelobjektief geschikt voor toepassing daarin en optisch inschrijf- en/of uitleesapparaat voorzien van deze aftastinrichting.
NL8803048A (nl) * 1988-12-13 1990-07-02 Philips Nv Optische aftastinrichting, spiegelobjektief geschikt voor toepassing daarin en optische inschrijf- en/of uitleesapparaat voorzien van de aftastinrichting.
JPH06103543B2 (ja) * 1988-12-31 1994-12-14 三星電子株式会社 レーザピックアップ
FR2646245B1 (fr) * 1989-04-25 1991-06-14 Thomson Csf Dispositif de lecture optique pour support d'enregistrement optique
JPH0721869B2 (ja) * 1990-04-20 1995-03-08 シャープ株式会社 光ピックアップ装置
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
JP2865223B2 (ja) * 1990-12-28 1999-03-08 松下電子工業株式会社 光ピックアップ用偏光板および光ピックアップ装置
JPH0659717B2 (ja) * 1991-02-27 1994-08-10 株式会社淀川製鋼所 被覆表面処理金属板
CN1047454C (zh) * 1992-08-12 1999-12-15 皇家菲利浦电子有限公司 对于光记录载体进行光学扫描用的装置
EP0583036B1 (en) * 1992-08-12 1998-07-15 Koninklijke Philips Electronics N.V. Device for optically scanning a surface
DE59409779D1 (de) * 1993-04-16 2001-07-19 Infineon Technologies Ag Diffraktive optische Einrichtung zur optischen Abbildung eines Raumpunktes auf andere Raumpunkte
JPH1064104A (ja) * 1996-08-21 1998-03-06 Pioneer Electron Corp 非点収差フォーカスエラー信号生成方法及び光ピックアップ装置
JPH10172170A (ja) * 1996-10-09 1998-06-26 Sanyo Electric Co Ltd 光ピックアップ装置およびその製造方法
JPH10333025A (ja) * 1997-05-28 1998-12-18 Pioneer Electron Corp 光ピックアップ装置
EP1046161A1 (en) 1998-09-21 2000-10-25 Koninklijke Philips Electronics N.V. Device for scanning an optical record carrier having at least two information layers
US6512608B2 (en) * 1999-12-16 2003-01-28 Victor Company Of Japan, Limited Optical device
AU763754B2 (en) 2000-04-21 2003-07-31 Jfe Steel Corporation Surface treated steel plate and method for production thereof
KR100809494B1 (ko) * 2000-10-03 2008-03-04 코닌클리케 필립스 일렉트로닉스 엔.브이. 광학주사장치
WO2003017486A1 (en) 2001-08-16 2003-02-27 Koninklijke Philips Electronics N.V. Differential ring oscillator stage
CN103868889B (zh) * 2012-12-18 2017-02-15 中国科学技术大学 基于微镜扫描的微悬臂梁阵列生化传感装置及方法
CN110033792B (zh) * 2019-03-29 2020-12-04 华韵文化科技有限公司 一种非接触测距式老唱片录制装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3272917A (en) * 1964-02-11 1966-09-13 Gen Electric First and second order diffraction color projection system
US3861784A (en) * 1973-06-29 1975-01-21 Sperry Rand Corp Programmable diffraction grating
JPS58220248A (ja) * 1982-06-15 1983-12-21 Nippon Kogaku Kk <Nikon> 光学式ピツクアツプ
US4733065A (en) * 1984-06-27 1988-03-22 Canon Kabushiki Kaisha Optical head device with diffraction grating for separating a light beam incident on an optical recording medium from a light beam reflected therefrom
JPS61273749A (ja) * 1985-05-29 1986-12-04 Pioneer Electronic Corp 光学式ピツクアツプ装置
NL8502835A (nl) * 1985-10-17 1987-05-18 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
DE3679648D1 (de) * 1985-12-10 1991-07-11 Nec Corp Optischer kopf mit einem beugungsgitter zum richten von zwei oder mehreren gebeugten lichtstrahlen auf optische detektoren.
US4731772A (en) * 1986-05-06 1988-03-15 Lee Wai Hon Optical head using hologram lens for both beam splitting and focus error detection functions

Also Published As

Publication number Publication date
JP2683918B2 (ja) 1997-12-03
EP0300570B1 (en) 1992-10-14
DE3875294D1 (de) 1992-11-19
ES2036255T3 (es) 1993-05-16
AU1974688A (en) 1989-01-27
CN1030987A (zh) 1989-02-08
KR890002848A (ko) 1989-04-11
US4829506A (en) 1989-05-09
CZ280821B6 (cs) 1996-04-17
SK278407B6 (en) 1997-04-09
SG28345G (en) 1995-09-18
ATE81560T1 (de) 1992-10-15
NL8701749A (nl) 1989-02-16
JPS6453353A (en) 1989-03-01
AU602646B2 (en) 1990-10-18
DE3875294T2 (de) 1993-04-29
KR970005985B1 (ko) 1997-04-22
EP0300570A1 (en) 1989-01-25
CN1015842B (zh) 1992-03-11

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20050714