JPS58155522A - 光ディスク再生方式 - Google Patents

光ディスク再生方式

Info

Publication number
JPS58155522A
JPS58155522A JP57038466A JP3846682A JPS58155522A JP S58155522 A JPS58155522 A JP S58155522A JP 57038466 A JP57038466 A JP 57038466A JP 3846682 A JP3846682 A JP 3846682A JP S58155522 A JPS58155522 A JP S58155522A
Authority
JP
Japan
Prior art keywords
groove
recording
light
lens
optical
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
JP57038466A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0150971B2 (enExample
Inventor
Michiyoshi Nagashima
道芳 永島
Mutsuo Takenaga
睦生 竹永
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP57038466A priority Critical patent/JPS58155522A/ja
Publication of JPS58155522A publication Critical patent/JPS58155522A/ja
Publication of JPH0150971B2 publication Critical patent/JPH0150971B2/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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • 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
    • G11B7/007—Arrangement of the information on the record carrier, e.g. form of tracks, actual track shape, e.g. wobbled, or cross-section, e.g. v-shaped; Sequential information structures, e.g. sectoring or header formats within a track

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP57038466A 1982-03-10 1982-03-10 光ディスク再生方式 Granted JPS58155522A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57038466A JPS58155522A (ja) 1982-03-10 1982-03-10 光ディスク再生方式

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57038466A JPS58155522A (ja) 1982-03-10 1982-03-10 光ディスク再生方式

Publications (2)

Publication Number Publication Date
JPS58155522A true JPS58155522A (ja) 1983-09-16
JPH0150971B2 JPH0150971B2 (enExample) 1989-11-01

Family

ID=12526019

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57038466A Granted JPS58155522A (ja) 1982-03-10 1982-03-10 光ディスク再生方式

Country Status (1)

Country Link
JP (1) JPS58155522A (enExample)

Also Published As

Publication number Publication date
JPH0150971B2 (enExample) 1989-11-01

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