JPH0479071B2 - - Google Patents

Info

Publication number
JPH0479071B2
JPH0479071B2 JP57091598A JP9159882A JPH0479071B2 JP H0479071 B2 JPH0479071 B2 JP H0479071B2 JP 57091598 A JP57091598 A JP 57091598A JP 9159882 A JP9159882 A JP 9159882A JP H0479071 B2 JPH0479071 B2 JP H0479071B2
Authority
JP
Japan
Prior art keywords
record carrier
shaped record
detection
disk
objective lens
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 - Lifetime
Application number
JP57091598A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58208943A (ja
Inventor
Keiichiro Horai
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 JP9159882A priority Critical patent/JPS58208943A/ja
Publication of JPS58208943A publication Critical patent/JPS58208943A/ja
Publication of JPH0479071B2 publication Critical patent/JPH0479071B2/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
    • G11B7/085—Disposition or mounting of heads or light sources relatively to record carriers with provision for moving the light beam into, or out of, its operative position or across tracks, otherwise than during the transducing operation, e.g. for adjustment or preliminary positioning or track change or selection

Landscapes

  • Automatic Focus Adjustment (AREA)
  • Moving Of The Head For Recording And Reproducing By Optical Means (AREA)
  • Optical Recording Or Reproduction (AREA)
  • Manufacturing Optical Record Carriers (AREA)
JP9159882A 1982-05-28 1982-05-28 光学情報記録装置 Granted JPS58208943A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9159882A JPS58208943A (ja) 1982-05-28 1982-05-28 光学情報記録装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9159882A JPS58208943A (ja) 1982-05-28 1982-05-28 光学情報記録装置

Publications (2)

Publication Number Publication Date
JPS58208943A JPS58208943A (ja) 1983-12-05
JPH0479071B2 true JPH0479071B2 (enrdf_load_stackoverflow) 1992-12-14

Family

ID=14030989

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9159882A Granted JPS58208943A (ja) 1982-05-28 1982-05-28 光学情報記録装置

Country Status (1)

Country Link
JP (1) JPS58208943A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6435729A (en) * 1987-07-31 1989-02-06 Canon Kk Automatic focussing controller
EP1612262A4 (en) * 2003-04-09 2009-07-22 Olympus Corp DEVICE FOR TREATING CULTURES AND AUTOMATIC DEVICE FOR TREATING CULTURES

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56148743A (en) * 1980-04-16 1981-11-18 Mitsubishi Electric Corp Focus control device

Also Published As

Publication number Publication date
JPS58208943A (ja) 1983-12-05

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