KR910005642B1 - Optical pick-up unit - Google Patents

Optical pick-up unit

Info

Publication number
KR910005642B1
KR910005642B1 KR8404614A KR840004614A KR910005642B1 KR 910005642 B1 KR910005642 B1 KR 910005642B1 KR 8404614 A KR8404614 A KR 8404614A KR 840004614 A KR840004614 A KR 840004614A KR 910005642 B1 KR910005642 B1 KR 910005642B1
Authority
KR
South Korea
Prior art keywords
unit
optical pick
pick
optical
Prior art date
Application number
KR8404614A
Other languages
Korean (ko)
Other versions
KR850001554A (en
Inventor
Mitsuru Takkashima
Original Assignee
Sony Co Ltd
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
Priority claimed from JP1984007293U external-priority patent/JPS60120519U/en
Application filed by Sony Co Ltd filed Critical Sony Co Ltd
Publication of KR850001554A publication Critical patent/KR850001554A/en
Application granted granted Critical
Publication of KR910005642B1 publication Critical patent/KR910005642B1/en

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
    • 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
KR8404614A 1983-08-03 1984-08-02 Optical pick-up unit KR910005642B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP???142254 1983-08-03
JP58142254A JPS6035341A (en) 1983-08-03 1983-08-03 Driving device
JP1984007293U JPS60120519U (en) 1984-01-23 1984-01-23 optical pick up
JP???7293 1984-01-23

Publications (2)

Publication Number Publication Date
KR850001554A KR850001554A (en) 1985-03-30
KR910005642B1 true KR910005642B1 (en) 1991-08-01

Family

ID=15311036

Family Applications (1)

Application Number Title Priority Date Filing Date
KR8404614A KR910005642B1 (en) 1983-08-03 1984-08-02 Optical pick-up unit

Country Status (2)

Country Link
JP (1) JPS6035341A (en)
KR (1) KR910005642B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100684039B1 (en) * 2004-09-08 2007-02-16 주식회사 파워로직스 Lens Actuator

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0725862Y2 (en) * 1985-08-26 1995-06-07 アルプス電気株式会社 Optical pickup lens device
JPS6277421U (en) * 1985-10-31 1987-05-18
JPH02185725A (en) * 1988-10-27 1990-07-20 Eastman Kodak Co Double solenoid focus actuator for optical type recorder/reproducer
EP4040643A1 (en) * 2021-02-09 2022-08-10 AT & S Austria Technologie & Systemtechnik Aktiengesellschaft Component carrier with cavity accommodating at least part of driven body being magnetically drivable to move

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100684039B1 (en) * 2004-09-08 2007-02-16 주식회사 파워로직스 Lens Actuator

Also Published As

Publication number Publication date
JPS6035341A (en) 1985-02-23
KR850001554A (en) 1985-03-30

Similar Documents

Publication Publication Date Title
DE3472453D1 (en) Optical sensor
GB8427109D0 (en) Optical system
GB8428855D0 (en) Optical filters
GB8431340D0 (en) Intracameral lens
GB2135475B (en) Optical de-polarizer
DE3473646D1 (en) Optical position transducer
GB8416151D0 (en) Optical pickup apparatus
GB8411509D0 (en) Optical disc
GB8402807D0 (en) Optical device
GB2145534B (en) Optical interconnection
EP0092997A3 (en) An optical pickup
EP0144933A3 (en) Lens mounting
GB2151869B (en) Optical amplifiers
GB2147759B (en) Optical sensor
DE3465523D1 (en) Optical filter device
GB8429986D0 (en) Optical amplifier
KR910005642B1 (en) Optical pick-up unit
GB8415070D0 (en) Optical transducers
AU91189S (en) An optical disk
GB8313192D0 (en) Phonograph
GB8306004D0 (en) Optical sensor
EP0142927A3 (en) Optical disc
DE3479261D1 (en) Optical recording member
GB2140191B (en) Phonograph
GB8410551D0 (en) Scanninin lens arrangement

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030716

Year of fee payment: 13

EXPY Expiration of term