JPH0576704B2 - - Google Patents

Info

Publication number
JPH0576704B2
JPH0576704B2 JP25534184A JP25534184A JPH0576704B2 JP H0576704 B2 JPH0576704 B2 JP H0576704B2 JP 25534184 A JP25534184 A JP 25534184A JP 25534184 A JP25534184 A JP 25534184A JP H0576704 B2 JPH0576704 B2 JP H0576704B2
Authority
JP
Japan
Prior art keywords
center
movable part
objective lens
gravity
recess
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 - Lifetime
Application number
JP25534184A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61133049A (ja
Inventor
Shinji Morimoto
Eiichi Hanakawa
Tooru Nakamura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP25534184A priority Critical patent/JPS61133049A/ja
Publication of JPS61133049A publication Critical patent/JPS61133049A/ja
Publication of JPH0576704B2 publication Critical patent/JPH0576704B2/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
    • G11B7/0935—Details of the moving parts

Landscapes

  • Mechanical Optical Scanning Systems (AREA)
  • Optical Recording Or Reproduction (AREA)
JP25534184A 1984-12-03 1984-12-03 対物レンズ駆動装置 Granted JPS61133049A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25534184A JPS61133049A (ja) 1984-12-03 1984-12-03 対物レンズ駆動装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25534184A JPS61133049A (ja) 1984-12-03 1984-12-03 対物レンズ駆動装置

Publications (2)

Publication Number Publication Date
JPS61133049A JPS61133049A (ja) 1986-06-20
JPH0576704B2 true JPH0576704B2 (enrdf_load_html_response) 1993-10-25

Family

ID=17277437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25534184A Granted JPS61133049A (ja) 1984-12-03 1984-12-03 対物レンズ駆動装置

Country Status (1)

Country Link
JP (1) JPS61133049A (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0721871B2 (ja) * 1986-12-01 1995-03-08 博秀 三輪 光ピックアップの平衡型可動装置
JPH0246918U (enrdf_load_html_response) * 1988-09-22 1990-03-30

Also Published As

Publication number Publication date
JPS61133049A (ja) 1986-06-20

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