| 摘要 |
PURPOSE:To reduce the error percentage of a regeneration signal at the time of reading, by forming an optical recording medium performing recording and regeneration using laser beam by laminating an optical recording layer consisting of a beam reflecting layer and a porous beam absorbing layer to a substrate. CONSTITUTION:A beam reflecting layer 6 and a porous beam absorbing layer 7 are laminated to form an optical recording layer 2a which is, in turn, provided on a substrate 3 so as to bring the beam absorbing layer 7 to a lower side and a protective layer 4 is provided as the outermost layer to form an optical recording medium. When laser beam 1 is allowed to irradiate the optical recording medium from the side of the optical recording layer 2a to perform the writing of information, a recording pit 5 is formed to the beam irradiation part of the optical recording layer 2a. At this time, the porous voids of the beam irradiation part are reduced with the softening and melting of the porous beam absorbing layer 7 and the pit having a stable size is formed by this mechanism and an excellent regeneration signal can be imparted. |
