JPS57117136A - Controller for light collecting position - Google Patents

Controller for light collecting position

Info

Publication number
JPS57117136A
JPS57117136A JP56004827A JP482781A JPS57117136A JP S57117136 A JPS57117136 A JP S57117136A JP 56004827 A JP56004827 A JP 56004827A JP 482781 A JP482781 A JP 482781A JP S57117136 A JPS57117136 A JP S57117136A
Authority
JP
Japan
Prior art keywords
control
spring
lens
lens mirror
radial
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.)
Granted
Application number
JP56004827A
Other languages
English (en)
Other versions
JPH0227739B2 (ja
Inventor
Kanji Nishii
Yoshikazu Goto
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 JP482781A priority Critical patent/JPH0227739B2/ja
Publication of JPS57117136A publication Critical patent/JPS57117136A/ja
Publication of JPH0227739B2 publication Critical patent/JPH0227739B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • G11B7/0932—Details of sprung supports
    • 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

  • Optical Recording Or Reproduction (AREA)
JP482781A 1981-01-13 1981-01-13 Hikarishusokuichiseigyosochi Expired - Lifetime JPH0227739B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP482781A JPH0227739B2 (ja) 1981-01-13 1981-01-13 Hikarishusokuichiseigyosochi

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP482781A JPH0227739B2 (ja) 1981-01-13 1981-01-13 Hikarishusokuichiseigyosochi

Publications (2)

Publication Number Publication Date
JPS57117136A true JPS57117136A (en) 1982-07-21
JPH0227739B2 JPH0227739B2 (ja) 1990-06-19

Family

ID=11594528

Family Applications (1)

Application Number Title Priority Date Filing Date
JP482781A Expired - Lifetime JPH0227739B2 (ja) 1981-01-13 1981-01-13 Hikarishusokuichiseigyosochi

Country Status (1)

Country Link
JP (1) JPH0227739B2 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007225385A (ja) * 2006-02-22 2007-09-06 Sanyu Kogyo Kk 投影面感知装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007225385A (ja) * 2006-02-22 2007-09-06 Sanyu Kogyo Kk 投影面感知装置

Also Published As

Publication number Publication date
JPH0227739B2 (ja) 1990-06-19

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