| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a new recording material which can be applied to a DVD-R disc system using a semi-conductive laser which has an oscillating wavelength in a shorter wavelength compared with a conventional system, is excellent in optical characteristics and pyrolyzing behaviors, and has a high reliability (light-fastness, and conservation stability). <P>SOLUTION: This optical recording medium is constituted by providing a recording layer on a base sheet. The optical recording medium comprises (A) an azo metal complex anion compound comprising an azo compound and a metal, their oxides or their salts, which is represented by structural formula (I), and (B) at least one kind of salt formation coloring matter consisting of a polymethine coloring matter cation compound, which is represented by structural formula (II). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
