JPH0325294Y2 - - Google Patents

Info

Publication number
JPH0325294Y2
JPH0325294Y2 JP1984007293U JP729384U JPH0325294Y2 JP H0325294 Y2 JPH0325294 Y2 JP H0325294Y2 JP 1984007293 U JP1984007293 U JP 1984007293U JP 729384 U JP729384 U JP 729384U JP H0325294 Y2 JPH0325294 Y2 JP H0325294Y2
Authority
JP
Japan
Prior art keywords
objective lens
optical axis
cylindrical body
magnets
coil
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
Application number
JP1984007293U
Other languages
English (en)
Japanese (ja)
Other versions
JPS60120519U (ja
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 filed Critical
Priority to JP1984007293U priority Critical patent/JPS60120519U/ja
Priority to CA000459979A priority patent/CA1249744A/en
Priority to US06/635,607 priority patent/US4643522A/en
Priority to EP84109181A priority patent/EP0133994B1/en
Priority to DE8484109181T priority patent/DE3482921D1/de
Priority to KR8404614A priority patent/KR910005642B1/ko
Priority to KR2019840011869U priority patent/KR910003737Y1/ko
Publication of JPS60120519U publication Critical patent/JPS60120519U/ja
Application granted granted Critical
Publication of JPH0325294Y2 publication Critical patent/JPH0325294Y2/ja
Granted 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking
    • 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
    • G11B7/0925—Electromechanical actuators for lens positioning
    • G11B7/0933—Details of stationary parts
    • 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
    • G11B7/1372—Lenses
    • G11B7/1374—Objective lenses

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
JP1984007293U 1983-08-03 1984-01-23 光学ピツクアツプ Granted JPS60120519U (ja)

Priority Applications (7)

Application Number Priority Date Filing Date Title
JP1984007293U JPS60120519U (ja) 1984-01-23 1984-01-23 光学ピツクアツプ
CA000459979A CA1249744A (en) 1983-08-03 1984-07-30 Optical pickup having a driving unit
US06/635,607 US4643522A (en) 1983-08-03 1984-07-30 Optical pickup having a driving unit for moving objective lens
EP84109181A EP0133994B1 (en) 1983-08-03 1984-08-02 Optical pickup having a driving unit
DE8484109181T DE3482921D1 (de) 1983-08-03 1984-08-02 Optischer lesekopf mit antriebseinheit.
KR8404614A KR910005642B1 (en) 1983-08-03 1984-08-02 Optical pick-up unit
KR2019840011869U KR910003737Y1 (ko) 1984-01-23 1984-11-21 광학 픽업

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1984007293U JPS60120519U (ja) 1984-01-23 1984-01-23 光学ピツクアツプ

Publications (2)

Publication Number Publication Date
JPS60120519U JPS60120519U (ja) 1985-08-14
JPH0325294Y2 true JPH0325294Y2 (en]) 1991-05-31

Family

ID=30485509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1984007293U Granted JPS60120519U (ja) 1983-08-03 1984-01-23 光学ピツクアツプ

Country Status (2)

Country Link
JP (1) JPS60120519U (en])
KR (1) KR910003737Y1 (en])

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20040013828A (ko) * 2002-08-08 2004-02-14 삼성전기주식회사 광 픽업 엑츄에이터의 보빈

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6220902Y2 (en]) * 1981-02-13 1987-05-27

Also Published As

Publication number Publication date
JPS60120519U (ja) 1985-08-14
KR850009674U (ko) 1985-12-05
KR910003737Y1 (ko) 1991-06-01

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