JPS6256580B2 - - Google Patents

Info

Publication number
JPS6256580B2
JPS6256580B2 JP58028731A JP2873183A JPS6256580B2 JP S6256580 B2 JPS6256580 B2 JP S6256580B2 JP 58028731 A JP58028731 A JP 58028731A JP 2873183 A JP2873183 A JP 2873183A JP S6256580 B2 JPS6256580 B2 JP S6256580B2
Authority
JP
Japan
Prior art keywords
coil
track
information
light spot
light
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
Application number
JP58028731A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58171731A (ja
Inventor
Kenjiro Kime
Mitsushige Kondo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP2873183A priority Critical patent/JPS58171731A/ja
Publication of JPS58171731A publication Critical patent/JPS58171731A/ja
Publication of JPS6256580B2 publication Critical patent/JPS6256580B2/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)
JP2873183A 1983-02-21 1983-02-21 デイスク再生装置 Granted JPS58171731A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2873183A JPS58171731A (ja) 1983-02-21 1983-02-21 デイスク再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2873183A JPS58171731A (ja) 1983-02-21 1983-02-21 デイスク再生装置

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP2434679A Division JPS6030017B2 (ja) 1979-03-01 1979-03-01 ディスク再生装置

Related Child Applications (10)

Application Number Title Priority Date Filing Date
JP13666787A Division JPS6332740A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP13666887A Division JPS6332741A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP13666387A Division JPS6332736A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP13666587A Division JPS6332738A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP13666187A Division JPS6332734A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP13666487A Division JPS6332737A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP13666687A Division JPS6332739A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP13666287A Division JPS6332735A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP13666987A Division JPS6352338A (ja) 1987-05-29 1987-05-29 ディスク再生装置
JP4361190A Division JPH03205622A (ja) 1990-02-23 1990-02-23 ディスク再生装置

Publications (2)

Publication Number Publication Date
JPS58171731A JPS58171731A (ja) 1983-10-08
JPS6256580B2 true JPS6256580B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1987-11-26

Family

ID=12256575

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2873183A Granted JPS58171731A (ja) 1983-02-21 1983-02-21 デイスク再生装置

Country Status (1)

Country Link
JP (1) JPS58171731A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6145424A (ja) * 1984-08-08 1986-03-05 Matsushita Electric Ind Co Ltd 回動型アクチユエ−タ
JPS6352338A (ja) * 1987-05-29 1988-03-05 Mitsubishi Electric Corp ディスク再生装置

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2174353A5 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1972-02-29 1973-10-12 Thomson Csf
JPS5410481B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * 1974-09-06 1979-05-07
NL181693C (nl) * 1974-11-29 1987-10-01 Philips Nv Inrichting voor het langs optische weg uitlezen van een stralingsreflekterende registratiedrager.
JPS5817973B2 (ja) * 1974-12-10 1983-04-11 日本ビクター株式会社 デイスクプレ−ヤ ニオケル シンゴウヨミトリセイギヨソウチ
JPS5935236B2 (ja) * 1975-02-04 1984-08-27 ソニー株式会社 映像信号再生装置
JPS5245201A (en) * 1975-10-07 1977-04-09 Matsushita Electric Ind Co Ltd Tunning setting device
NL176315C (nl) * 1976-05-12 1985-03-18 Philips Nv Optische aftastinrichting.
JPS5328404A (en) * 1976-08-27 1978-03-16 Mitsubishi Electric Corp Optical information re producer
JPS5376805A (en) * 1976-12-20 1978-07-07 Mansei Kogyo Kk Optical information reader
NL7703232A (nl) * 1977-03-25 1978-09-27 Philips Nv Optische aftastinrichting.
JPS5494007A (en) * 1978-01-05 1979-07-25 Olympus Optical Co Ltd Pickup for disc recorder recorded optically with information
JPS6030017B2 (ja) * 1979-03-01 1985-07-13 三菱電機株式会社 ディスク再生装置
JPS6030017A (ja) * 1983-07-28 1985-02-15 ソニー株式会社 薄膜スイツチの製法

Also Published As

Publication number Publication date
JPS58171731A (ja) 1983-10-08

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