JPS59201240A - 光ヘツド - Google Patents

光ヘツド

Info

Publication number
JPS59201240A
JPS59201240A JP58073845A JP7384583A JPS59201240A JP S59201240 A JPS59201240 A JP S59201240A JP 58073845 A JP58073845 A JP 58073845A JP 7384583 A JP7384583 A JP 7384583A JP S59201240 A JPS59201240 A JP S59201240A
Authority
JP
Japan
Prior art keywords
objective lens
optical
prism
light
head
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
JP58073845A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0526254B2 (enrdf_load_stackoverflow
Inventor
Toru Musha
武者　徹
Norio Shimizu
徳生 清水
Tetsuo Komino
小美野　鉄男
Fumiyoshi Hara
原　文由
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.)
Olympus Corp
Original Assignee
Olympus Corp
Olympus Optical 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 Olympus Corp, Olympus Optical Co Ltd filed Critical Olympus Corp
Priority to JP58073845A priority Critical patent/JPS59201240A/ja
Publication of JPS59201240A publication Critical patent/JPS59201240A/ja
Publication of JPH0526254B2 publication Critical patent/JPH0526254B2/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
    • 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

Landscapes

  • Optical Head (AREA)
  • Optical Recording Or Reproduction (AREA)
JP58073845A 1983-04-28 1983-04-28 光ヘツド Granted JPS59201240A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58073845A JPS59201240A (ja) 1983-04-28 1983-04-28 光ヘツド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58073845A JPS59201240A (ja) 1983-04-28 1983-04-28 光ヘツド

Publications (2)

Publication Number Publication Date
JPS59201240A true JPS59201240A (ja) 1984-11-14
JPH0526254B2 JPH0526254B2 (enrdf_load_stackoverflow) 1993-04-15

Family

ID=13529880

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58073845A Granted JPS59201240A (ja) 1983-04-28 1983-04-28 光ヘツド

Country Status (1)

Country Link
JP (1) JPS59201240A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61242351A (ja) * 1985-04-19 1986-10-28 Akai Electric Co Ltd 光ピツクアツプ装置
JPS61273746A (ja) * 1985-05-28 1986-12-04 Victor Co Of Japan Ltd 光学的ヘツド
JPS623626U (enrdf_load_stackoverflow) * 1985-06-21 1987-01-10
JPS6445315U (enrdf_load_stackoverflow) * 1987-09-16 1989-03-20

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55117745A (en) * 1979-03-01 1980-09-10 Mitsubishi Electric Corp Disk reproducing device using optical stylus
JPS5630439U (enrdf_load_stackoverflow) * 1979-08-06 1981-03-24
JPS5862448U (ja) * 1981-10-21 1983-04-27 株式会社三協精機製作所 ２次元駆動装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55117745A (en) * 1979-03-01 1980-09-10 Mitsubishi Electric Corp Disk reproducing device using optical stylus
JPS5630439U (enrdf_load_stackoverflow) * 1979-08-06 1981-03-24
JPS5862448U (ja) * 1981-10-21 1983-04-27 株式会社三協精機製作所 ２次元駆動装置

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61242351A (ja) * 1985-04-19 1986-10-28 Akai Electric Co Ltd 光ピツクアツプ装置
JPS61273746A (ja) * 1985-05-28 1986-12-04 Victor Co Of Japan Ltd 光学的ヘツド
JPS623626U (enrdf_load_stackoverflow) * 1985-06-21 1987-01-10
JPS6445315U (enrdf_load_stackoverflow) * 1987-09-16 1989-03-20

Also Published As

Publication number Publication date
JPH0526254B2 (enrdf_load_stackoverflow) 1993-04-15

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