| 摘要 |
This invention relates to how to obtain an optical recording disc with a good quality, capable of achieving a beautiful outline shape of the inner peripheral part side rim part of the cured ultraviolet ray curing type resin substantially concentrically even in the case there is irregularity of the wettability of both round substrates with respect to the ultraviolet ray curing type resin, and capable of providing an even film thickness of the resin with the film thickness controlled to a predetermined value or less even in the case there are irregularity of the wettability of both round substrates, difficulty in controlling the centrifugal force applied on the resin, irregularity of the plate thickness of both round substrates, or the like.Either one of both substrates is rotated at a low speed with the other one fixed while pressuring between both substrates of an optical recording disc comprising both substrates temporarily bonded via a ring-like ultraviolet ray curing type resin disposed substantially concentrically with the substrates for forming a layer with a predetermined even thickness by the spread, the optical recording disc temporarily bonded having the layer-like resin is rotated at a high speed, and an ultraviolet ray is irradiated to the optical recording disc temporarily bonded and rotated at the high speed for curing the layer-like resin. |
