ATE157797T1 - Einrichtung zum optischen abtasten einer oberfläche - Google Patents

Einrichtung zum optischen abtasten einer oberfläche

Info

Publication number
ATE157797T1
ATE157797T1 AT93201680T AT93201680T ATE157797T1 AT E157797 T1 ATE157797 T1 AT E157797T1 AT 93201680 T AT93201680 T AT 93201680T AT 93201680 T AT93201680 T AT 93201680T AT E157797 T1 ATE157797 T1 AT E157797T1
Authority
AT
Austria
Prior art keywords
objective lens
coil system
optically scanning
objective
scanning
Prior art date
Application number
AT93201680T
Other languages
English (en)
Inventor
Rosmalen Gerard E Van
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 ATE157797T1 publication Critical patent/ATE157797T1/de

Links

Classifications

    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085Disposition 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
    • G11B7/08547Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements
    • G11B7/08564Arrangements for positioning the light beam only without moving the head, e.g. using static electro-optical elements using galvanomirrors
    • GPHYSICS
    • G11INFORMATION STORAGE
    • G11BINFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B7/00Recording 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
    • G11B7/08Disposition or mounting of heads or light sources relatively to record carriers
    • G11B7/085Disposition 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
    • G11B7/0857Arrangements for mechanically moving the whole head
    • G11B7/08582Sled-type positioners

Landscapes

  • Instruments For Measurement Of Length By Optical Means (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Mechanical Optical Scanning Systems (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
AT93201680T 1992-06-19 1993-06-11 Einrichtung zum optischen abtasten einer oberfläche ATE157797T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP92201788 1992-06-19

Publications (1)

Publication Number Publication Date
ATE157797T1 true ATE157797T1 (de) 1997-09-15

Family

ID=8210699

Family Applications (1)

Application Number Title Priority Date Filing Date
AT93201680T ATE157797T1 (de) 1992-06-19 1993-06-11 Einrichtung zum optischen abtasten einer oberfläche

Country Status (5)

Country Link
US (1) US5289442A (de)
JP (1) JPH0668478A (de)
CN (1) CN1080418A (de)
AT (1) ATE157797T1 (de)
DE (1) DE69313526T2 (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5740139A (en) * 1996-08-09 1998-04-14 Eastman Kodak Company Magnetically suspended optical recording actuator
JP4089177B2 (ja) * 2000-10-25 2008-05-28 株式会社日立製作所 光ディスク装置及び層間ジャンプ方法
EP1459298A2 (de) * 2001-12-11 2004-09-22 Koninklijke Philips Electronics N.V. Optische abtastvorrichtung
JP4547676B2 (ja) * 2006-01-26 2010-09-22 株式会社デンソー 操作装置
US11428894B2 (en) 2020-02-04 2022-08-30 Hand Held Products, Inc. Discrete variable focus assemblies and apparatuses
US12117598B2 (en) 2022-03-11 2024-10-15 Hand Held Products, Inc. Variable focusing lens apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2271590B1 (de) * 1974-01-15 1978-12-01 Thomson Brandt
NL187413C (nl) * 1978-03-16 1991-09-16 Philips Nv Registratiedragerlichaam, ingeschreven registratiedrager, werkwijze voor het inschrijven van het registratiedragerlichaam en inrichting voor het uitvoeren van de werkwijze en voor het uitlezen van een ingeschreven registratiedrager.
NL8501665A (nl) * 1985-06-10 1987-01-02 Philips Nv Optische aftasteenheid met positie- en standdetektiestelsel voor een elektromagnetisch gelagerd objektief.
DE69026429T2 (de) * 1989-06-30 1996-11-14 Fuji Xerox Co Ltd Magnetooptisches Aufzeichnungs-/Wiedergabegerät

Also Published As

Publication number Publication date
US5289442A (en) 1994-02-22
JPH0668478A (ja) 1994-03-11
DE69313526D1 (de) 1997-10-09
DE69313526T2 (de) 1998-02-26
CN1080418A (zh) 1994-01-05

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