JPS578928A - Three-dimensional driver - Google Patents

Three-dimensional driver

Info

Publication number
JPS578928A
JPS578928A JP8291080A JP8291080A JPS578928A JP S578928 A JPS578928 A JP S578928A JP 8291080 A JP8291080 A JP 8291080A JP 8291080 A JP8291080 A JP 8291080A JP S578928 A JPS578928 A JP S578928A
Authority
JP
Japan
Prior art keywords
coils
axis
magnets
common
penetrate
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.)
Pending
Application number
JP8291080A
Other languages
Japanese (ja)
Inventor
Hideo Onuki
Toshitaka Sugimoto
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.)
Hitachi Ltd
Original Assignee
Hitachi 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
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8291080A priority Critical patent/JPS578928A/en
Publication of JPS578928A publication Critical patent/JPS578928A/en
Pending 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

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

PURPOSE:To simplify a structure and to achieve miniaturization by using a magnetic circuit in common between driving parts crossing at right angles. CONSTITUTION:Magnetic fluxes from magnets 7-1 and 7-2 penetrate coils, 3-1 and 3-2 the Z axis through yokes 6 and, 8-1 and 8-2, and further penetrate the half parts of coils 4-1 and 4-2 for the X axis. Further, magnetic fields established by magnets 5-1 and 5-2 are applied to the half parts of coils 5-1 and 5-2 for the Y axis. Thus, a cylindrical photodetector 1 is driven in three perpendicular directions X, Y and Z, and osicllation part for the X and Z directions use a magnetic circuit in common, thereby simplifying the structure.
JP8291080A 1980-06-20 1980-06-20 Three-dimensional driver Pending JPS578928A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8291080A JPS578928A (en) 1980-06-20 1980-06-20 Three-dimensional driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8291080A JPS578928A (en) 1980-06-20 1980-06-20 Three-dimensional driver

Publications (1)

Publication Number Publication Date
JPS578928A true JPS578928A (en) 1982-01-18

Family

ID=13787402

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8291080A Pending JPS578928A (en) 1980-06-20 1980-06-20 Three-dimensional driver

Country Status (1)

Country Link
JP (1) JPS578928A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556121A1 (en) * 1983-12-01 1985-06-07 Philips Nv ELECTRO-OPTICAL DEVICE FOR ELECTRODYNAMICALLY ADJUSTING THE POSITION OF A RADIATION SPOT
JPS62223U (en) * 1986-04-25 1987-01-06
KR100403587B1 (en) * 2001-04-20 2003-10-30 삼성전자주식회사 A actuator for a optical pickup

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2556121A1 (en) * 1983-12-01 1985-06-07 Philips Nv ELECTRO-OPTICAL DEVICE FOR ELECTRODYNAMICALLY ADJUSTING THE POSITION OF A RADIATION SPOT
JPS62223U (en) * 1986-04-25 1987-01-06
JPH0544894Y2 (en) * 1986-04-25 1993-11-16
KR100403587B1 (en) * 2001-04-20 2003-10-30 삼성전자주식회사 A actuator for a optical pickup

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