| 摘要 |
PURPOSE:To allow recording, reproducing, and erasing from a flat substrate side and to enhance performance, such as C/N, by sticking a grooved substrate and flat substrate which are different in material from each other. CONSTITUTION:The above medium is constituted by providing a magneto-optical recording layer 3 sandwiched by protective layers 2 on the grooved substrate 1 consisting of polycarbonate or the like having good transferability and heat resistance and sticking the flat substrate 5 consisting of an acryl resin, etc., having a low double refractive index and optical characteristics thereon by an adhesive agent 4, such as UV adhesive agent. The both-face medium is constituted by providing the magneto-optical recording layer on the grooved substrate 6 consisting of the polycarbonate, etc., and sticking the flat substrate 7 consisting of the acrylic resin, etc., thereon, then further, sticking two sheets of the disks obtd. in such a manner by the adhesive agent 8. |
