JPS56163528A - Recording and erasing method of optical information - Google Patents

Recording and erasing method of optical information

Info

Publication number
JPS56163528A
JPS56163528A JP6677380A JP6677380A JPS56163528A JP S56163528 A JPS56163528 A JP S56163528A JP 6677380 A JP6677380 A JP 6677380A JP 6677380 A JP6677380 A JP 6677380A JP S56163528 A JPS56163528 A JP S56163528A
Authority
JP
Japan
Prior art keywords
blackening
temperature
pulse duration
recording
rise
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
JP6677380A
Other languages
Japanese (ja)
Other versions
JPH0258690B2 (en
Inventor
Takeo Oota
Nobuo Akahira
Tatsushi Nakamura
Tadaoki Yamashita
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 JP6677380A priority Critical patent/JPS56163528A/en
Publication of JPS56163528A publication Critical patent/JPS56163528A/en
Publication of JPH0258690B2 publication Critical patent/JPH0258690B2/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
    • G11B7/004—Recording, reproducing or erasing methods; Read, write or erase circuits therefor
    • G11B7/0045—Recording
    • G11B7/00455—Recording involving reflectivity, absorption or colour changes

Abstract

PURPOSE:To ensure a whitening record and erasion of a whitening record area after blackening for an optical and thermal information recording member that can carry out a recording with a lowering of the optical density after a rise of temperature by heating and then a quenching. CONSTITUTION:A recording thin film 3 is formed with an evaporated thin film of chalcogen compound or a low oxide thin film on an heat-resistant base material 2 and receives a heat treatment up to a saturation blackening level to be changed into a black disk. The cooling speed after a rise of temperature by heating becomes high with a short pulse duration and then becomes low with a long pulse duration since the temperature does not lower easily due to a rise of temperature of the whole base material. A quenching and whitening state is obtained with the pulse duration from 10nsec to several musec; and a blackening state is obtained with the pulse duration of >=10musec, respectively. A signal recording is carried out by a means that selects a small value of the irradiation time of light which is decided by the size of the light beam spot and the relative transfer speed of a blackening record film that is due to the rotation of the disk.
JP6677380A 1980-05-19 1980-05-19 Recording and erasing method of optical information Granted JPS56163528A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6677380A JPS56163528A (en) 1980-05-19 1980-05-19 Recording and erasing method of optical information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6677380A JPS56163528A (en) 1980-05-19 1980-05-19 Recording and erasing method of optical information

Publications (2)

Publication Number Publication Date
JPS56163528A true JPS56163528A (en) 1981-12-16
JPH0258690B2 JPH0258690B2 (en) 1990-12-10

Family

ID=13325512

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6677380A Granted JPS56163528A (en) 1980-05-19 1980-05-19 Recording and erasing method of optical information

Country Status (1)

Country Link
JP (1) JPS56163528A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0106673A2 (en) * 1982-10-14 1984-04-25 Matsushita Electric Industrial Co., Ltd. Optical and reversible recording and reproducing apparatus
JPS60106031A (en) * 1983-11-11 1985-06-11 Matsushita Electric Ind Co Ltd Preprocessor of optical recording medium
EP0255188A2 (en) * 1982-08-24 1988-02-03 Matsushita Electric Industrial Co., Ltd. Method of recording, reproducing and erasing information on an optical disk
EP0153807B1 (en) * 1984-01-26 1989-04-05 Sony Corporation Optical information recording methods
US4953150A (en) * 1981-11-09 1990-08-28 Canon Kabushiki Kaisha Optical recording apparatus having improved erasing capability
US5038338A (en) * 1987-04-24 1991-08-06 Hitachi, Ltd. Recording waveform for mark-length modulation optical recording
US5257256A (en) * 1987-04-24 1993-10-26 Hitachi, Ltd. Recording waveform for mark-length modulation optical recording

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4953150A (en) * 1981-11-09 1990-08-28 Canon Kabushiki Kaisha Optical recording apparatus having improved erasing capability
EP0255188A2 (en) * 1982-08-24 1988-02-03 Matsushita Electric Industrial Co., Ltd. Method of recording, reproducing and erasing information on an optical disk
EP0106673A2 (en) * 1982-10-14 1984-04-25 Matsushita Electric Industrial Co., Ltd. Optical and reversible recording and reproducing apparatus
JPS60106031A (en) * 1983-11-11 1985-06-11 Matsushita Electric Ind Co Ltd Preprocessor of optical recording medium
JPH0245247B2 (en) * 1983-11-11 1990-10-08 Matsushita Electric Ind Co Ltd
EP0153807B1 (en) * 1984-01-26 1989-04-05 Sony Corporation Optical information recording methods
US5038338A (en) * 1987-04-24 1991-08-06 Hitachi, Ltd. Recording waveform for mark-length modulation optical recording
US5257256A (en) * 1987-04-24 1993-10-26 Hitachi, Ltd. Recording waveform for mark-length modulation optical recording

Also Published As

Publication number Publication date
JPH0258690B2 (en) 1990-12-10

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