摘要:
An information recording medium (1) which includes at least a recording layer (13), and first and second metallic layers (15, 16) disposed on an opposite side of an energy beam incident side of the recording layer and having different compositions, and in which the first one of the first and second metallic layers located closer to the recording layer contains Al, Ag, Au, Pt and Pd as its main components and a sum of contents of these atoms is 60 % or more. Thereby recording and reproducing of information can be realized with a high reliability.
摘要:
An information recording medium (1) which includes at least a recording layer (13), and first and second metallic layers (15, 16) disposed on an opposite side of an energy beam incident side of the recording layer and having different compositions, and in which the first one of the first and second metallic layers located closer to the recording layer contains Al, Ag, Au, Pt and Pd as its main components and a sum of contents of these atoms is 60 % or more. Thereby recording and reproducing of information can be realized with a high reliability.
摘要:
A method of recording information in a recording medium capable of being set in a first state with an energy beam at a first power level and in a second state with an energy beam at a second power level higher than said first power level, the method comprising: after irradiation of said recording medium with an energy beam at said first power level, irradiating said recording medium with an energy beam pulse at said second power level, wherein a duration of said irradiation with said energy beam at said first power level is changed in accordance with a relative speed between said energy beam and said recording medium.
摘要:
An information recording medium capable of displaying multiple labels and a storing case for the information recording medium are provided. The multiple labels are displayed by changing the labels to be displayed while selectively selecting information layers in a multi information recording medium. The medium has a function to receive either voltage or current, and the information layers selectively receive either voltage or current for changing the labels.
摘要:
An information recording method of and an information recording apparatus for carrying out a recording of information by irradiating an energy beam to an information recording medium (1) by modulating power of the energy beam at least at a high power level and at an intermediate power level lower than the high power level, wherein a recording is carried out in a recording waveform having a downward directed pulse toward a power level (P11) lower than the intermediate power level (Pm1) after continuous high-power pulse trains of the power level (Ph1) so that the width of the downward directed pulse is changed according to a relative speed of the energy beam and the information recording medium (1).
摘要:
In a multilayer optical recording medium having at least three recording layers, an influence of interlayer crosstalk due to an unnecessary light is removed. Each of the recording layers includes an information recording area, and the recording layers other than the nearest recording layer and the farthest recording layer when viewed from a light incident side include a first annular area having uneven patterns formed thereon, and a second annular area having uneven patterns formed thereon, the first annular area being adjacent to an inner side of the information recording area, the second annular area being adjacent to an outer side of the information recording area.
摘要:
A method of recording information in a recording medium capable of being set in a first state with an energy beam at a first power level and in a second state with an energy beam at a second power level higher than said first power level, the method comprising: after irradiation of said recording medium with an energy beam at said first power level, irradiating said recording medium with an energy beam pulse at said second power level, wherein a duration of said irradiation with said energy beam at said first power level is changed in accordance with a relative speed between said energy beam and said recording medium.
摘要:
A method for recording information is disclosed in which an information recording medium is irradiated with a recording energy beam power-modulated into at least a record power level and a record-ready power level lower than the record power level. When forming a mark portion of a predetermined length, the radiation energy of the energy beam is increased as compared with when forming a mark portion of a different length before or after the first pulse of an energy beam pulse train including at least a pulse for forming the mark portion. Also, only in the case where the energy beam is modulated by the power lower in power level than the record-ready power level after the last pulse of the energy beam pulse train including at least one pulse for forming a mark portion and the mark portion is followed by a space portion of a predetermined length, the particular radiation energy of low power level is reduced as compared with when the mark portion is followed by a space potion of a different length. The radiation energy is increased and/or decreased.