| 摘要 |
PURPOSE:To increase the adhesive strength of an optical disk and to prevent deformation thereof by disposing two sheets of substrates in such a manner that the recording layer sides thereof are positioned face to face, adhering the substrates after disposing spacers to the central part and outside circumferential part thereof and adhering the address recording regions of the recording layers via a connecting spacer disposed therebetween. CONSTITUTION:The substrate 2 and the substrate 3 are so disposed that the information recording layer 5 sides thereof face each other. The substrates are adhered after the annular inner spacer 6 and outer spacer 7 are disposed therebetween. The address recording regions 5a prerecorded with address information exist in the above-mentioned recording layers 5. The address recording regions 5a, 5a of the substrates 2 and 3 are adhered to each other via the connecting spacers 11, by which the adhesive area of the substrates 2 and 3 of the optical disk 1 having air sandwich structure is widened and the adhesive strength is increased; in addition, the spacing therebetween is held constant and the deformation is prevented. |
