| 摘要 |
<P>PROBLEM TO BE SOLVED: To manufacture an optical information recording medium having a recording layer whereupon information of a large quantity can be recorded by a simple system. <P>SOLUTION: Two light transmitting substrates whereupon a first photosensitive polymer and a second photosensitive polymer are developed, respectively, are bonded to each other on the photosensitive polymer layers to form one recording layer. Since the recording layer has a larger optical absorptance as the optical focal point for information recording moves deeper in the depth direction, information can be recorded without reducing information record transfer rate. <P>COPYRIGHT: (C)2009,JPO&INPIT |
