DE68914690D1 - Optische Abtastvorrichtung. - Google Patents

Optische Abtastvorrichtung.

Info

Publication number
DE68914690D1
DE68914690D1 DE68914690T DE68914690T DE68914690D1 DE 68914690 D1 DE68914690 D1 DE 68914690D1 DE 68914690 T DE68914690 T DE 68914690T DE 68914690 T DE68914690 T DE 68914690T DE 68914690 D1 DE68914690 D1 DE 68914690D1
Authority
DE
Germany
Prior art keywords
scanning
objective
section
collimator lens
grating
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
DE68914690T
Other languages
English (en)
Other versions
DE68914690T2 (de
Inventor
Willem Gerard Opheij
Louis-Marie Hubert Cobben
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 Gloeilampenfabrieken 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 Gloeilampenfabrieken NV filed Critical Philips Gloeilampenfabrieken NV
Publication of DE68914690D1 publication Critical patent/DE68914690D1/de
Application granted granted Critical
Publication of DE68914690T2 publication Critical patent/DE68914690T2/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
    • G11B7/08—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
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1861—Reflection gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0004—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed
    • G02B19/0028—Condensers, e.g. light collectors or similar non-imaging optics characterised by the optical means employed refractive and reflective surfaces, e.g. non-imaging catadioptric systems
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
    • G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
    • G02B19/0047—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source
    • G02B19/0052—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a light source the light source comprising a laser diode
    • 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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • 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
    • G02B27/09—Beam shaping, e.g. changing the cross-sectional area, not otherwise provided for
    • G02B27/0938—Using specific optical elements
    • G02B27/0944—Diffractive optical elements, e.g. gratings, holograms
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
    • G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
    • G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
    • G06K15/1285—Holographic scanning
    • 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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection
    • G11B7/08547—Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • 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
    • 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
    • G11B7/1362—Mirrors

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optical Head (AREA)
  • Holo Graphy (AREA)
  • Mechanical Optical Scanning Systems (AREA)
DE68914690T 1988-01-11 1989-01-05 Optische Abtastvorrichtung. Expired - Fee Related DE68914690T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8800057A NL8800057A (nl) 1988-01-11 1988-01-11 Optische aftastinrichting.

Publications (2)

Publication Number Publication Date
DE68914690D1 true DE68914690D1 (de) 1994-05-26
DE68914690T2 DE68914690T2 (de) 1994-10-27

Family

ID=19851577

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68914690T Expired - Fee Related DE68914690T2 (de) 1988-01-11 1989-01-05 Optische Abtastvorrichtung.

Country Status (7)

Country Link
US (1) US4826270A (de)
EP (1) EP0324518B1 (de)
JP (1) JPH01223412A (de)
KR (1) KR890012277A (de)
AT (1) ATE104792T1 (de)
DE (1) DE68914690T2 (de)
NL (1) NL8800057A (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8800133A (nl) * 1988-01-21 1989-08-16 Philips Nv Inrichting voor het met optische straling aftasten van een informatievlak.
US5105403A (en) * 1988-01-27 1992-04-14 Hitachi, Ltd. Optical information reading apparatus with waveguide and diffraction grating
DE68919922T2 (de) * 1988-06-23 1995-06-22 Sharp Kk Optische Abtastvorrichtung.
US4998784A (en) * 1988-08-31 1991-03-12 Ppg Industries, Inc. Automotive windshield for a head up display system
US5138490A (en) * 1989-04-29 1992-08-11 Carl-Zeiss-Stiftung Arrangement for changing the geometrical form of a light beam
US5223957A (en) * 1989-09-14 1993-06-29 Matsushita Electric Industrial Co., Ltd. Optical scanning device
US5029967A (en) * 1990-04-09 1991-07-09 The Boeing Company Optical source for optical sensing system
DE69128808T2 (de) * 1990-04-12 1998-07-23 Matsushita Electric Ind Co Ltd Optischer Kopf mit hologrammverbundener Objektivlinse
US5867521A (en) * 1992-11-12 1999-02-02 Raytheon Company Curved grating surface-emitting distributed feedback laser
JPH07182687A (ja) * 1993-12-24 1995-07-21 Sharp Corp 光ピックアップ
US5629791A (en) * 1996-05-31 1997-05-13 Eastman Kodak Company Optical compensation for laser emitter array non-linearity
US6532097B1 (en) * 2001-10-11 2003-03-11 Applied Materials, Inc. Image registration apparatus having an adjustable reflective diffraction grating and method
CA2531122A1 (en) 2003-07-03 2005-02-10 Pd-Ld, Inc. Use of volume bragg gratings for the conditioning of laser emission characteristics
US20060028935A1 (en) * 2004-08-03 2006-02-09 Matsushita Electric Industrial Co., Ltd. Optical pickup device, optical disk apparatus, and light-receiving unit
WO2006083998A2 (en) 2005-02-03 2006-08-10 Pd-Ld, Inc. High-power, phased-locked, laser arrays
US7593305B1 (en) 2005-09-09 2009-09-22 Seagate Technology Llc Removing spherical aberrations for two photon recording
JP5186129B2 (ja) * 2006-08-25 2013-04-17 大日本スクリーン製造株式会社 溝パターンの深さの測定方法および測定装置
DE102007062825A1 (de) * 2007-12-21 2009-07-02 Trumpf Laser- Und Systemtechnik Gmbh Gitterspiegel zur Online-Überwachung eines Laserstrahls und Überwachungsvorrichtung damit
JP5588310B2 (ja) * 2009-11-15 2014-09-10 プライムセンス リミテッド ビームモニタ付き光学プロジェクタ
US9245572B2 (en) * 2012-11-21 2016-01-26 Oracle International Corporation Optical tape pick up unit with holographic optical element

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5545074A (en) * 1978-09-28 1980-03-29 Ricoh Co Ltd Hologram lens
US4440839A (en) * 1981-03-18 1984-04-03 United Technologies Corporation Method of forming laser diffraction grating for beam sampling device
US4520472A (en) * 1983-02-07 1985-05-28 Rca Corporation Beam expansion and relay optics for laser diode array
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
NL8602980A (nl) * 1985-11-25 1987-06-16 Mitsubishi Electric Corp Inrichting voor het registreren en weergeven van optische informatie.
EP0241942B1 (de) * 1986-04-18 1992-03-04 Mitsubishi Denki Kabushiki Kaisha Optischer Kopf
US4760565A (en) * 1986-09-15 1988-07-26 International Business Machines Corporation High speed track access for optical disks using acousto-optic deflector
NL8603010A (nl) * 1986-11-27 1988-06-16 Philips Nv Optische aftastinrichting.
US4784447A (en) * 1987-03-13 1988-11-15 International Business Machines Corporation Holographic objective mirror for optical storage

Also Published As

Publication number Publication date
ATE104792T1 (de) 1994-05-15
JPH01223412A (ja) 1989-09-06
DE68914690T2 (de) 1994-10-27
KR890012277A (ko) 1989-08-25
EP0324518A1 (de) 1989-07-19
NL8800057A (nl) 1989-08-01
US4826270A (en) 1989-05-02
EP0324518B1 (de) 1994-04-20

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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: PHILIPS ELECTRONICS N.V., EINDHOVEN, NL

8339 Ceased/non-payment of the annual fee