| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform data writing at high speed by optimized recording power. <P>SOLUTION: An optical disk device 100 records data on a recording surface of an optical disk using a laser beam having set recording power and applied by a laser beam irradiation means, and includes: a measuring part 40 accumulating and measuring physical quantities of at least any of temperature of the laser beam irradiation means, recording speed of data, a β value and recording position of data; a correcting part 50 calculating an approximation value of any relationship of 6 kinds of relationships of recording power and β-sensitivity to the temperature of the laser beam irradiation means, recording power and β-sensitivity to the recording speed and recording power and β-sensitivity to the recording position from the physical quantities accumulated and measured by the measuring part 40 and correcting the recording power of the laser beam using the approximation value; and a measuring/correcting time instructing part 60 instructing the time at which the measuring part 40 measures the physical quantities and the time at which the correcting part 50 corrects the recording power to the measuring part 40 and the correcting part 50. <P>COPYRIGHT: (C)2011,JPO&INPIT |
