JPS60106031A - 光記録媒体の前処理装置 - Google Patents

光記録媒体の前処理装置

Info

Publication number
JPS60106031A
JPS60106031A JP58212702A JP21270283A JPS60106031A JP S60106031 A JPS60106031 A JP S60106031A JP 58212702 A JP58212702 A JP 58212702A JP 21270283 A JP21270283 A JP 21270283A JP S60106031 A JPS60106031 A JP S60106031A
Authority
JP
Japan
Prior art keywords
recording medium
optical recording
light
radiation
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.)
Granted
Application number
JP58212702A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0245247B2 (enrdf_load_stackoverflow
Inventor
Keiichi Yoshizumi
恵一 吉住
Noboru Yamada
昇 山田
Mutsuo Takenaga
睦生 竹永
Kenichi Nishiuchi
健一 西内
Toshiaki Kashihara
樫原　俊昭
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 JP58212702A priority Critical patent/JPS60106031A/ja
Publication of JPS60106031A publication Critical patent/JPS60106031A/ja
Publication of JPH0245247B2 publication Critical patent/JPH0245247B2/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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B7/1378—Separate aberration correction lenses; Cylindrical lenses to generate astigmatism; Beam expanders
    • 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
    • G11B7/135—Means for guiding the beam from the source to the record carrier or from the record carrier to the detector
    • G11B7/1372—Lenses
    • G11B2007/13727—Compound lenses, i.e. two or more lenses co-operating to perform a function, e.g. compound objective lens including a solid immersion lens, positive and negative lenses either bonded together or with adjustable spacing

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing Optical Record Carriers (AREA)
  • Testing Of Optical Devices Or Fibers (AREA)
  • Optical Recording Or Reproduction (AREA)
JP58212702A 1983-11-11 1983-11-11 光記録媒体の前処理装置 Granted JPS60106031A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58212702A JPS60106031A (ja) 1983-11-11 1983-11-11 光記録媒体の前処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58212702A JPS60106031A (ja) 1983-11-11 1983-11-11 光記録媒体の前処理装置

Publications (2)

Publication Number Publication Date
JPS60106031A true JPS60106031A (ja) 1985-06-11
JPH0245247B2 JPH0245247B2 (enrdf_load_stackoverflow) 1990-10-08

Family

ID=16627010

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58212702A Granted JPS60106031A (ja) 1983-11-11 1983-11-11 光記録媒体の前処理装置

Country Status (1)

Country Link
JP (1) JPS60106031A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120236A (ja) * 1984-07-09 1986-01-29 Hitachi Ltd 可逆光デイスクの初期化方式
US5294523A (en) * 1988-08-01 1994-03-15 Matsushita Electric Industrial Co., Ltd. Optical information recording medium
EP0706179A2 (en) 1994-09-27 1996-04-10 Matsushita Electric Industrial Co., Ltd. Production process of optical information recording medium and production apparatus therefor
US5684778A (en) * 1994-09-27 1997-11-04 Matsushita Electric Industrial Co., Ltd. Initialization process for a phase change recording medium with a zero level drop in flash light emission
EP1369848A3 (en) * 1996-12-14 2004-03-24 Ricoh Company, Ltd. Method and device for initializing optical recording medium of phase change type, and optical recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56163528A (en) * 1980-05-19 1981-12-16 Matsushita Electric Ind Co Ltd Recording and erasing method of optical information

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56163528A (en) * 1980-05-19 1981-12-16 Matsushita Electric Ind Co Ltd Recording and erasing method of optical information

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120236A (ja) * 1984-07-09 1986-01-29 Hitachi Ltd 可逆光デイスクの初期化方式
US5294523A (en) * 1988-08-01 1994-03-15 Matsushita Electric Industrial Co., Ltd. Optical information recording medium
EP0706179A2 (en) 1994-09-27 1996-04-10 Matsushita Electric Industrial Co., Ltd. Production process of optical information recording medium and production apparatus therefor
US5684778A (en) * 1994-09-27 1997-11-04 Matsushita Electric Industrial Co., Ltd. Initialization process for a phase change recording medium with a zero level drop in flash light emission
EP1369848A3 (en) * 1996-12-14 2004-03-24 Ricoh Company, Ltd. Method and device for initializing optical recording medium of phase change type, and optical recording medium

Also Published As

Publication number Publication date
JPH0245247B2 (enrdf_load_stackoverflow) 1990-10-08

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