JPH0519207B2 - - Google Patents

Info

Publication number
JPH0519207B2
JPH0519207B2 JP59110003A JP11000384A JPH0519207B2 JP H0519207 B2 JPH0519207 B2 JP H0519207B2 JP 59110003 A JP59110003 A JP 59110003A JP 11000384 A JP11000384 A JP 11000384A JP H0519207 B2 JPH0519207 B2 JP H0519207B2
Authority
JP
Japan
Prior art keywords
optical system
dirt
light
recording
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.)
Expired - Lifetime
Application number
JP59110003A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60253025A (ja
Inventor
Shunji Kanamaru
Kunihiko Mototani
Hideo Okamura
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 JP59110003A priority Critical patent/JPS60253025A/ja
Publication of JPS60253025A publication Critical patent/JPS60253025A/ja
Publication of JPH0519207B2 publication Critical patent/JPH0519207B2/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
    • G11B7/002—Recording, reproducing or erasing systems characterised by the shape or form of the carrier
    • G11B7/0037—Recording, reproducing or erasing systems characterised by the shape or form of the carrier with discs

Landscapes

  • Optical Recording Or Reproduction (AREA)
JP59110003A 1984-05-30 1984-05-30 光学式情報記録再生装置 Granted JPS60253025A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59110003A JPS60253025A (ja) 1984-05-30 1984-05-30 光学式情報記録再生装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59110003A JPS60253025A (ja) 1984-05-30 1984-05-30 光学式情報記録再生装置

Publications (2)

Publication Number Publication Date
JPS60253025A JPS60253025A (ja) 1985-12-13
JPH0519207B2 true JPH0519207B2 (enrdf_load_html_response) 1993-03-16

Family

ID=14524632

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59110003A Granted JPS60253025A (ja) 1984-05-30 1984-05-30 光学式情報記録再生装置

Country Status (1)

Country Link
JP (1) JPS60253025A (enrdf_load_html_response)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0589462A (ja) * 1991-09-27 1993-04-09 Nikon Corp 光デイスク装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58155664U (ja) * 1982-04-08 1983-10-18 富士通株式会社 デイスク装置

Also Published As

Publication number Publication date
JPS60253025A (ja) 1985-12-13

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