Method for manufacturing optical disk

摘要

Methods for manufacturing an optical disk having spiral or concentric grooves and land portions between the grooves are disclosed. In one aspect, the methods include projection of light spots onto a photosensitive material so that areas of the photosensitive material exposed to a first light spot form the pattern of spiral or concentric grooves and that areas of said photosensitive material which correspond to said land portions and are exposed to a second light spot form a predetermined pit pattern.