Method and apparatus for manufacturing optical disk

摘要

It is an object of the invention to provide a method and an apparatus for manufacturing an optical disk capable of equalizing thickness of an intermediate layer formed by laminating two disk substrates such as DVD. A UV curing type adhesive C is charged between two disk substrates A and B which are formed into disk-like shape, the disk substrates A and B are superposed on each other and sucked by substrate holding means 11. The substrate holding means 11 carries out a spin step for rotating the superposed two disk substrates A and B. The disk substrate A and B are irradiated with UV rays by UV rays irradiating means 21 disposed on an upper surface of the disk substrate A. The UV rays irradiating means 21 includes a light source 22 for emitting UV rays and a shutter 23. The adhesive in each of concentrically divided regions of the disk substrate is irradiated with UV rays by adjusting the shutter 23. With this, the step for selectively curing the adhesive in each region is divided into a plurality of steps and the steps are carried out separately.