| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a hologram type optical recording medium capable of recording high density images by remarkably reducing moisture, air and reaction gas leaking from the outside on the recording medium, and possessing high service life and a recording layer of uniform thickness; and to provide a method of manufacturing the optical recording medium that can efficiently manufacture the optical recording medium, a method of recording the optical recording medium, and a method of reproducing the optical recording medium. <P>SOLUTION: In the optical recording medium having the recording layer recording information by using holography between an upper side substrate and a lower side substrate, a spacer for holding the thickness of the recording layer is integrally molded with at least any one of the upper side substrate and the lower side substrate, or provided on the outer peripheral edge of the optical recording medium. An outer peripheral spacer for holding the thickness of the recording layer is integrally molded with at least any one of the upper side substrate and the lower side substrate. <P>COPYRIGHT: (C)2007,JPO&INPIT |
