JPS5873024A - 光学式情報処理装置 - Google Patents

光学式情報処理装置

Info

Publication number
JPS5873024A
JPS5873024A JP56172400A JP17240081A JPS5873024A JP S5873024 A JPS5873024 A JP S5873024A JP 56172400 A JP56172400 A JP 56172400A JP 17240081 A JP17240081 A JP 17240081A JP S5873024 A JPS5873024 A JP S5873024A
Authority
JP
Japan
Prior art keywords
detector
detectors
light
output
focus
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
JP56172400A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0311007B2 (en]
Inventor
Kaneki Matsui
完益 松井
Haruhisa Takiguchi
治久 瀧口
Yukio Kurata
幸夫 倉田
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.)
Sharp Corp
Original Assignee
Sharp 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 Sharp Corp filed Critical Sharp Corp
Priority to JP56172400A priority Critical patent/JPS5873024A/ja
Publication of JPS5873024A publication Critical patent/JPS5873024A/ja
Publication of JPH0311007B2 publication Critical patent/JPH0311007B2/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
    • G11B7/12—Heads, e.g. forming of the optical beam spot or modulation of the optical beam
    • G11B7/13—Optical detectors therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Automatic Focus Adjustment (AREA)
JP56172400A 1981-10-27 1981-10-27 光学式情報処理装置 Granted JPS5873024A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56172400A JPS5873024A (ja) 1981-10-27 1981-10-27 光学式情報処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56172400A JPS5873024A (ja) 1981-10-27 1981-10-27 光学式情報処理装置

Publications (2)

Publication Number Publication Date
JPS5873024A true JPS5873024A (ja) 1983-05-02
JPH0311007B2 JPH0311007B2 (en]) 1991-02-15

Family

ID=15941236

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56172400A Granted JPS5873024A (ja) 1981-10-27 1981-10-27 光学式情報処理装置

Country Status (1)

Country Link
JP (1) JPS5873024A (en])

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8600380A (nl) * 1985-03-11 1986-10-01 Hitachi Ltd Inrichting voor het detecteren van scherpstellingsfouten en een optische schijf-inrichting waarin deze wordt gebruikt.
JPH05210858A (ja) * 1991-10-29 1993-08-20 Internatl Business Mach Corp <Ibm> サーボ・クロストークを減少させるための収差補償を備えた光学式データ記憶システム
JPH0836762A (ja) * 1995-03-17 1996-02-06 Hitachi Ltd 光ディスク装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53100203A (en) * 1977-02-15 1978-09-01 Mitsubishi Electric Corp Optical reproducer
JPS53123103A (en) * 1977-04-02 1978-10-27 Mansei Kogyo Kk Optical information reader

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53100203A (en) * 1977-02-15 1978-09-01 Mitsubishi Electric Corp Optical reproducer
JPS53123103A (en) * 1977-04-02 1978-10-27 Mansei Kogyo Kk Optical information reader

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8600380A (nl) * 1985-03-11 1986-10-01 Hitachi Ltd Inrichting voor het detecteren van scherpstellingsfouten en een optische schijf-inrichting waarin deze wordt gebruikt.
JPH05210858A (ja) * 1991-10-29 1993-08-20 Internatl Business Mach Corp <Ibm> サーボ・クロストークを減少させるための収差補償を備えた光学式データ記憶システム
JPH0836762A (ja) * 1995-03-17 1996-02-06 Hitachi Ltd 光ディスク装置

Also Published As

Publication number Publication date
JPH0311007B2 (en]) 1991-02-15

Similar Documents

Publication Publication Date Title
JP3819756B2 (ja) 光情報処理装置
JPS5873024A (ja) 光学式情報処理装置
JP3567639B2 (ja) フォーカスエラー信号検出方法及び信号読取装置
JP2672618B2 (ja) 光情報記録再生装置
JPS61220147A (ja) 光学ヘツド
JPS6149728B2 (en])
JPH05504224A (ja) 光学式走査装置
JPS60187934A (ja) 光学的記録媒体の再生方式
JP2660523B2 (ja) 光記録再生装置
JPS59113532A (ja) 光学的情報再生装置
KR930703669A (ko) 합초검출기구 및 그것을 사용한 광헤드와 광기억장치
JPS6223373B2 (en])
JP2695909B2 (ja) 光学的情報記録再生装置
JPH0281330A (ja) 光記録再生装置
KR100200815B1 (ko) 포커스 에러 검출방법
JPS6145419A (ja) 光ピツクアツプ
JPH05205274A (ja) 情報の再生方法
JPS641858B2 (en])
JPH10154370A (ja) 光電検出センサ
JPS6044727B2 (ja) フオ−カスサ−ボにおける媒体位置検出方式
JPH11250491A (ja) 光学ピックアップ及び光ディスク装置
JPH08129770A (ja) 光ピックアップ装置
JPH04245038A (ja) 光学的情報記録装置
JPH06274929A (ja) 光学ヘッド装置
JPH05274684A (ja) 光学式情報記録再生装置