KR910003737Y1 - 광학 픽업 - Google Patents

광학 픽업 Download PDF

Info

Publication number
KR910003737Y1
KR910003737Y1 KR2019840011869U KR840011869U KR910003737Y1 KR 910003737 Y1 KR910003737 Y1 KR 910003737Y1 KR 2019840011869 U KR2019840011869 U KR 2019840011869U KR 840011869 U KR840011869 U KR 840011869U KR 910003737 Y1 KR910003737 Y1 KR 910003737Y1
Authority
KR
South Korea
Prior art keywords
objective lens
optical axis
magnets
coils
cylindrical body
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
KR2019840011869U
Other languages
English (en)
Korean (ko)
Other versions
KR850009674U (ko
Inventor
미쯔루 다까시마
Original Assignee
소니 가부시끼가이샤
오오가 노리오
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 소니 가부시끼가이샤, 오오가 노리오 filed Critical 소니 가부시끼가이샤
Publication of KR850009674U publication Critical patent/KR850009674U/ko
Application granted granted Critical
Publication of KR910003737Y1 publication Critical patent/KR910003737Y1/ko
Expired legal-status Critical Current

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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

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  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
KR2019840011869U 1984-01-23 1984-11-21 광학 픽업 Expired KR910003737Y1 (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1984007293U JPS60120519U (ja) 1984-01-23 1984-01-23 光学ピツクアツプ
JP84-7293 1984-01-23

Publications (2)

Publication Number Publication Date
KR850009674U KR850009674U (ko) 1985-12-05
KR910003737Y1 true KR910003737Y1 (ko) 1991-06-01

Family

ID=30485509

Family Applications (1)

Application Number Title Priority Date Filing Date
KR2019840011869U Expired KR910003737Y1 (ko) 1984-01-23 1984-11-21 광학 픽업

Country Status (2)

Country Link
JP (1) JPS60120519U (enrdf_load_stackoverflow)
KR (1) KR910003737Y1 (enrdf_load_stackoverflow)

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 (enrdf_load_stackoverflow) * 1981-02-13 1987-05-27

Also Published As

Publication number Publication date
KR850009674U (ko) 1985-12-05
JPH0325294Y2 (enrdf_load_stackoverflow) 1991-05-31
JPS60120519U (ja) 1985-08-14

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