JPH0424769B2 - - Google Patents

Info

Publication number
JPH0424769B2
JPH0424769B2 JP57013767A JP1376782A JPH0424769B2 JP H0424769 B2 JPH0424769 B2 JP H0424769B2 JP 57013767 A JP57013767 A JP 57013767A JP 1376782 A JP1376782 A JP 1376782A JP H0424769 B2 JPH0424769 B2 JP H0424769B2
Authority
JP
Japan
Prior art keywords
support member
objective lens
focus control
optical
tracking control
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
JP57013767A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58133640A (ja
Inventor
Keiji Maruta
Mine Naito
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.)
Sony Corp
Original Assignee
Sony Corp
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 Sony Corp filed Critical Sony Corp
Priority to JP1376782A priority Critical patent/JPS58133640A/ja
Publication of JPS58133640A publication Critical patent/JPS58133640A/ja
Publication of JPH0424769B2 publication Critical patent/JPH0424769B2/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
    • G11B7/093—Electromechanical actuators for lens positioning for focusing and tracking

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP1376782A 1982-01-30 1982-01-30 光学ピックアップ装置 Granted JPS58133640A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1376782A JPS58133640A (ja) 1982-01-30 1982-01-30 光学ピックアップ装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1376782A JPS58133640A (ja) 1982-01-30 1982-01-30 光学ピックアップ装置

Publications (2)

Publication Number Publication Date
JPS58133640A JPS58133640A (ja) 1983-08-09
JPH0424769B2 true JPH0424769B2 (US20100056889A1-20100304-C00004.png) 1992-04-28

Family

ID=11842398

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1376782A Granted JPS58133640A (ja) 1982-01-30 1982-01-30 光学ピックアップ装置

Country Status (1)

Country Link
JP (1) JPS58133640A (US20100056889A1-20100304-C00004.png)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157049A (ja) * 1984-08-28 1986-03-22 Matsushita Electric Ind Co Ltd 光ピツクアツプ
JPS61269234A (ja) * 1985-05-24 1986-11-28 Omron Tateisi Electronics Co 光情報処理装置
JP2520393B2 (ja) * 1986-02-28 1996-07-31 日本電気ホームエレクトロニクス株式会社 光学ヘツド装置
JP2723108B2 (ja) * 1986-06-28 1998-03-09 日本電気ホームエレクトロニクス株式会社 光学系分離型光ヘツド装置
JPH03141040A (ja) * 1990-06-13 1991-06-17 Toshiba Corp 対物レンズ駆動装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494007A (en) * 1978-01-05 1979-07-25 Olympus Optical Co Ltd Pickup for disc recorder recorded optically with information
JPS55117745A (en) * 1979-03-01 1980-09-10 Mitsubishi Electric Corp Disk reproducing device using optical stylus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5494007A (en) * 1978-01-05 1979-07-25 Olympus Optical Co Ltd Pickup for disc recorder recorded optically with information
JPS55117745A (en) * 1979-03-01 1980-09-10 Mitsubishi Electric Corp Disk reproducing device using optical stylus

Also Published As

Publication number Publication date
JPS58133640A (ja) 1983-08-09

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