JPS6224857B2 - - Google Patents

Info

Publication number
JPS6224857B2
JPS6224857B2 JP53013193A JP1319378A JPS6224857B2 JP S6224857 B2 JPS6224857 B2 JP S6224857B2 JP 53013193 A JP53013193 A JP 53013193A JP 1319378 A JP1319378 A JP 1319378A JP S6224857 B2 JPS6224857 B2 JP S6224857B2
Authority
JP
Japan
Prior art keywords
focusing lens
recording
focusing
recording disk
movable body
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
JP53013193A
Other languages
English (en)
Japanese (ja)
Other versions
JPS54106208A (en
Inventor
Yasuhisa Fukushima
Tomio Yoshida
Yoshikazu Goto
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 JP1319378A priority Critical patent/JPS54106208A/ja
Publication of JPS54106208A publication Critical patent/JPS54106208A/ja
Publication of JPS6224857B2 publication Critical patent/JPS6224857B2/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
    • G11B7/121—Protecting the head, e.g. against dust or impact with the record carrier

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Head (AREA)
  • Automatic Focus Adjustment (AREA)
  • Optical Recording Or Reproduction (AREA)
JP1319378A 1978-02-07 1978-02-07 Cleaner for automatic focusing device of optical information recording and reproducing apparatus Granted JPS54106208A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1319378A JPS54106208A (en) 1978-02-07 1978-02-07 Cleaner for automatic focusing device of optical information recording and reproducing apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1319378A JPS54106208A (en) 1978-02-07 1978-02-07 Cleaner for automatic focusing device of optical information recording and reproducing apparatus

Publications (2)

Publication Number Publication Date
JPS54106208A JPS54106208A (en) 1979-08-21
JPS6224857B2 true JPS6224857B2 (enExample) 1987-05-30

Family

ID=11826318

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1319378A Granted JPS54106208A (en) 1978-02-07 1978-02-07 Cleaner for automatic focusing device of optical information recording and reproducing apparatus

Country Status (1)

Country Link
JP (1) JPS54106208A (enExample)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10847151B2 (en) 2017-11-08 2020-11-24 Kabushiki Kaisha Toshiba Dialogue system and dialogue method
US11455489B2 (en) * 2018-06-13 2022-09-27 Canon Kabushiki Kaisha Device that updates recognition model and method of updating recognition model

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58165740U (ja) * 1981-12-26 1983-11-04 三菱電機株式会社 光ビツクアツプ装置
JPWO2006106819A1 (ja) * 2005-03-31 2008-11-20 パイオニア株式会社 記録媒体再生装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10847151B2 (en) 2017-11-08 2020-11-24 Kabushiki Kaisha Toshiba Dialogue system and dialogue method
US11455489B2 (en) * 2018-06-13 2022-09-27 Canon Kabushiki Kaisha Device that updates recognition model and method of updating recognition model

Also Published As

Publication number Publication date
JPS54106208A (en) 1979-08-21

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