JPS58133644A - 光学式デイスクプレ−ヤ - Google Patents

光学式デイスクプレ−ヤ

Info

Publication number
JPS58133644A
JPS58133644A JP57014766A JP1476682A JPS58133644A JP S58133644 A JPS58133644 A JP S58133644A JP 57014766 A JP57014766 A JP 57014766A JP 1476682 A JP1476682 A JP 1476682A JP S58133644 A JPS58133644 A JP S58133644A
Authority
JP
Japan
Prior art keywords
light emitting
emitting element
optical pickup
control signal
level
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.)
Pending
Application number
JP57014766A
Other languages
English (en)
Japanese (ja)
Inventor
Shinichi Tamaki
玉木　伸一
Shizuo Inaba
静雄 稲葉
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.)
Pioneer Corp
Original Assignee
Pioneer Corp
Pioneer Electronic 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 Pioneer Corp, Pioneer Electronic Corp filed Critical Pioneer Corp
Priority to JP57014765A priority Critical patent/JPS58133643A/ja
Priority to JP57014766A priority patent/JPS58133644A/ja
Publication of JPS58133644A publication Critical patent/JPS58133644A/ja
Pending 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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/125—Optical beam sources therefor, e.g. laser control circuitry specially adapted for optical storage devices; Modulators, e.g. means for controlling the size or intensity of optical spots or optical traces
    • G11B7/126—Circuits, methods or arrangements for laser control or stabilisation

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
JP57014766A 1982-02-03 1982-02-03 光学式デイスクプレ−ヤ Pending JPS58133644A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP57014765A JPS58133643A (ja) 1982-02-03 1982-02-03 光学式ディスクプレ−ヤ
JP57014766A JPS58133644A (ja) 1982-02-03 1982-02-03 光学式デイスクプレ−ヤ

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP57014765A JPS58133643A (ja) 1982-02-03 1982-02-03 光学式ディスクプレ−ヤ
JP57014766A JPS58133644A (ja) 1982-02-03 1982-02-03 光学式デイスクプレ−ヤ

Publications (1)

Publication Number Publication Date
JPS58133644A true JPS58133644A (ja) 1983-08-09

Family

ID=26350776

Family Applications (2)

Application Number Title Priority Date Filing Date
JP57014766A Pending JPS58133644A (ja) 1982-02-03 1982-02-03 光学式デイスクプレ−ヤ
JP57014765A Granted JPS58133643A (ja) 1982-02-03 1982-02-03 光学式ディスクプレ−ヤ

Family Applications After (1)

Application Number Title Priority Date Filing Date
JP57014765A Granted JPS58133643A (ja) 1982-02-03 1982-02-03 光学式ディスクプレ−ヤ

Country Status (1)

Country Link
JP (2) JPS58133644A (enrdf_load_html_response)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050637A (ja) * 1983-08-29 1985-03-20 Hitachi Ltd 光ディスク装置
JPS60123725U (ja) * 1984-01-26 1985-08-21 三洋電機株式会社 光学的録音再生装置に於ける半導体レ−ザ制御装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0728587Y2 (ja) * 1984-03-02 1995-06-28 オリンパス光学工業株式会社 光学式ピツクアツプ装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040110A (enrdf_load_html_response) * 1973-08-16 1975-04-12
JPS5616894B2 (enrdf_load_html_response) * 1973-09-27 1981-04-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5040110A (enrdf_load_html_response) * 1973-08-16 1975-04-12
JPS5616894B2 (enrdf_load_html_response) * 1973-09-27 1981-04-18

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6050637A (ja) * 1983-08-29 1985-03-20 Hitachi Ltd 光ディスク装置
JPS60123725U (ja) * 1984-01-26 1985-08-21 三洋電機株式会社 光学的録音再生装置に於ける半導体レ−ザ制御装置

Also Published As

Publication number Publication date
JPH0447379B2 (enrdf_load_html_response) 1992-08-03
JPS58133643A (ja) 1983-08-09

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