JPS6248300B2 - - Google Patents

Info

Publication number
JPS6248300B2
JPS6248300B2 JP11546582A JP11546582A JPS6248300B2 JP S6248300 B2 JPS6248300 B2 JP S6248300B2 JP 11546582 A JP11546582 A JP 11546582A JP 11546582 A JP11546582 A JP 11546582A JP S6248300 B2 JPS6248300 B2 JP S6248300B2
Authority
JP
Japan
Prior art keywords
information recording
signal
recording carrier
focus lens
photoelectric conversion
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
JP11546582A
Other languages
English (en)
Japanese (ja)
Other versions
JPS598144A (ja
Inventor
Hirotaka Kurata
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.)
KENUTSUDO KK
Original Assignee
KENUTSUDO KK
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 KENUTSUDO KK filed Critical KENUTSUDO KK
Priority to JP11546582A priority Critical patent/JPS598144A/ja
Publication of JPS598144A publication Critical patent/JPS598144A/ja
Publication of JPS6248300B2 publication Critical patent/JPS6248300B2/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
    • G11B7/0908—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 for focusing only

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP11546582A 1982-07-05 1982-07-05 光学的情報読取装置 Granted JPS598144A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11546582A JPS598144A (ja) 1982-07-05 1982-07-05 光学的情報読取装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11546582A JPS598144A (ja) 1982-07-05 1982-07-05 光学的情報読取装置

Publications (2)

Publication Number Publication Date
JPS598144A JPS598144A (ja) 1984-01-17
JPS6248300B2 true JPS6248300B2 (ko) 1987-10-13

Family

ID=14663206

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11546582A Granted JPS598144A (ja) 1982-07-05 1982-07-05 光学的情報読取装置

Country Status (1)

Country Link
JP (1) JPS598144A (ko)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61104336A (ja) * 1984-10-23 1986-05-22 Seiko Epson Corp 光学式記録装置
JPS61177647A (ja) * 1985-02-04 1986-08-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 情報記憶装置
JPS61177646A (ja) * 1985-02-04 1986-08-09 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション 光学デイスク装置
DE3508525A1 (de) * 1985-03-09 1986-09-11 Thomson Brandt Gmbh Fokus-such-einrichtung fuer beruehrungslose abtastung
DE3732997A1 (de) * 1987-09-30 1989-04-13 Thomson Brandt Gmbh Geraet zur wiedergabe von daten

Also Published As

Publication number Publication date
JPS598144A (ja) 1984-01-17

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