Patent ID: 8383328

Claim:
A method for producing an optical part including an irradiation process for irradiating a radiation-sensitive polymerizable composition with a radiation, wherein the radiation-sensitive polymerizable composition comprises at least: a polymerizable component (a); a polymerization initiator (b); and a polymerizable or non-polymerizable component (c), the irradiation process comprises at least: a step of enlarging an irradiation region in a concentric manner from a first irradiation region that is a portion of the radiation-sensitive polymerizable composition to a second irradiation region that is a portion of the radiation-sensitive polymerizable composition and includes the first irradiation region while irradiating the radiation-sensitive polymerizable composition with a radiation, and when the component (c) is polymerizable, the polymerization rate of the component (c) is lower than that of the polymerizable component (a) in the step of enlarging.