| 摘要 |
<p>This invention relates to an optical recording method and apparatus, in which the intensity of a laser beam to be radiated onto an optical recording medium is raised from an intensity Ppre for maintaining a pre-heat state, in which the temperature of the medium surface becomes a predetermined temperature, to an intensity PW1 higher than Ppre, and after PW1 is maintained for a time TW1, the intensity is reduced to an intensity PW2 lower than PW1 to form a mark on the optical recording medium. In the method and apparatus, PW2 is controlled so that the medium temperature at a peak temperature position or a spot center position of the laser beam radiated onto the medium surface after an elapse of the time TW1 becomes constant even after the intensity is reduced to PW2, and at least one of Ppre, Toff, and PLB is controlled to establish the pre-heat condition within a time period until the intensity is raised to PW1 again so as to form the next mark. <IMAGE></p> |
