A power adjustment method in which a modulation index is calculated from reproduced signals of patterns recorded by irradiating {HEAD ~ light} onto {TAIL ~ an optical information recording medium} with a recording power varied and an optimum power of irradiation light is set up using the modulation index 
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A power adjustment method in which a modulation index is calculated from reproduced signals of patterns recorded by irradiating { HEAD ~ light } onto { TAIL ~ an optical information recording medium } with a recording power varied and an optimum power of irradiation light is set up using the modulation index
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH