| 摘要 |
A method for manufacturing a multilayer recording type optical recording medium and an intermediate in a manufacturing process of the optical recording medium are provided, which can form a spacer layer and a light transmitting layer with a uniform thickness and can provide good production efficiency. In this manufacturing method, a circular projection having an outer diameter smaller than an inner diameter of a central hole is formed near the center of the spacer layer. The light transmitting layer is spread on the spacer layer by supplying a radiation curable resin to a region around the circular projection and rotating the substrate. The light transmitting layer is irradiated with radiation to be cured. Then, the central hole is formed, thereby removing the circular projection. |
