| 摘要 |
PURPOSE:To facilitate the process of manufacturing an optical information storage medium by forming a protective layer by using an adhesive and by fitting an inside and an outside spacer by utilizing the adhesive. CONSTITUTION:On the internal surface of a base plate 11, a thin recording layer 12 is formed by using a light-reflective material. A protective layer 13 is formed by coating the surfaces of the base plate 11 and recording layer 12 with an adhesive, such as epoxy resin and rubber resin, by spinner coating to uniform film thickness. This protective layer 13 covers the entire surface of the recording layer 12 and also covers the internal and external circumferential surfaces of the recording layer 12 and the base plate 11 partially. The adhesive is applied and then dried naturally for about 15min for curing to a desired extent, and inside and outside spacers 14a and 14b are fitted and adhered to adhesive parts 13a of the adhesive on the opposite sides to the base plate 11. Then, adhesive parts 13b facing a hollow part are cured to form the protective layer. |
