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1.发明公开Optical information recording method and apparatus and recording medium used therefor 失效Optische Informationsaufzeichnungsmethode undGerätund Aufzeichnungsmediumdafür。
公开(公告)号：EP0345752A2
公开(公告)日：1989-12-13
申请号：EP89110279.0
申请日：1989-06-07
申请人： HITACHI, LTD.
发明人： Goto, Norio , Ishigaki, Masaji , Fukui, Yukio
摘要： A method and apparatus for optically recording information in which the phase state of each recording position of the recording film of a recording medium such as an optical disk is reversibly changed between an amorphous phase and a crystalline phase using a single laser beam, thereby optically recording information on the recording film. The recording position on the recording film is heated to the melting point thereof or more through laser beam irradiation irrespectively of the information to be recorded. After completion of the heating, in order to change the phase state of the recording film at the recording position in accordance with the information, the power and/or irradiation time of the laser beam is controlled so as to provide different times required for the temperature of the recording position to pass the crystallization temperature region of the recording film. The recording medium has at least one record of data indicative of the melting point of the recording film and data indicative of the time required to pass the crystallization temperature region for placing the recording position in the amorphous or crystalline state.
摘要翻译： 一种用于光学记录信息的方法和装置，其中使用单个激光束在非晶相和结晶相之间可逆地改变诸如光盘的记录介质的记录膜的每个记录位置的相位状态，从而光学记录 关于录影片的信息。 通过激光束照射将记录膜上的记录位置加热到其熔点以上，而不管要记录的信息如何。 在完成加热之后，为了根据该信息改变记录位置处的记录膜的相位状态，控制激光束的功率和/或照射时间，以便提供温度所需的不同时间 的记录位置以通过记录膜的结晶温度区域。 记录介质具有指示记录膜的熔点的数据的至少一个记录和表示通过用于将记录位置置于非晶态或结晶状态的结晶温度区所需的时间的数据。
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2.发明授权Optical information recording method and apparatus and recording medium used therefor 失效光学信息记录方法和设备以及用于该记录介质。
公开(公告)号：EP0345752B1
公开(公告)日：1994-11-02
申请号：EP89110279.0
申请日：1989-06-07
申请人： HITACHI, LTD.
发明人： Goto, Norio , Ishigaki, Masaji , Fukui, Yukio
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3.发明公开Optical information recording method and apparatus and recording medium used therefor 失效光信息记录方法及其使用的装置和记录介质
公开(公告)号：EP0345752A3
公开(公告)日：1991-10-09
申请号：EP89110279.0
申请日：1989-06-07
申请人： HITACHI, LTD.
发明人： Goto, Norio , Ishigaki, Masaji , Fukui, Yukio
摘要： A method and apparatus for optically recording information in which the phase state of each recording position of the recording film of a recording medium such as an optical disk is reversibly changed between an amorphous phase and a crystalline phase using a single laser beam, thereby optically recording information on the recording film. The recording position on the recording film is heated to the melting point thereof or more through laser beam irradiation irrespectively of the information to be recorded. After completion of the heating, in order to change the phase state of the recording film at the recording position in accordance with the information, the power and/or irradiation time of the laser beam is controlled so as to provide different times required for the temperature of the recording position to pass the crystallization temperature region of the recording film. The recording medium has at least one record of data indicative of the melting point of the recording film and data indicative of the time required to pass the crystallization temperature region for placing the recording position in the amorphous or crystalline state.
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