| 摘要 |
<P>PROBLEM TO BE SOLVED: To materialize a multilayer optical information recording medium at a low cost. <P>SOLUTION: The optical information recording medium 1 has interfaces among resin layers 11-13 as reflection surfaces, wherein the resin layers 11, 13 with a first refractive index and the resin layer 12 with a second refractive index are alternately laminated. In this constitution, all differences in refractive index between the adjacent resin layers are the same, and reflectance of the media of respective layers are uniform. Reproduction from the respective layers of the optical information recording medium 1 is facilitated. Furthermore, the optical information recording medium 1 is flexibly adapted to have multiple layers at a low cost by arbitrarily increasing the number of resin layers without being restricted by the possible range of refractive indexes of the materials of the resin layers 11-13. <P>COPYRIGHT: (C)2010,JPO&INPIT |
