Patent ID: 6841340

Claim:
An optical fabricating apparatus in which a photo-curing material, which is accommodated in a container and cured by being irradiated with light, is irradiated with light at an energy level necessary to cure the photo-curing material to thereby fabricate a structure, said apparatus comprising: a light source section having a first light source which applies a first light to the photo-curing material, and a second light source which outputs a second light that causes a multiple photon absorption phenomenon when applied to the photo-curing material; a light focusing section which focuses light so that energy of the first light and of the second light reaches an energy level necessary to cure the photo-curing material; a changing section for changing a position in which light is focused by the light focusing section in the container; and a control section which controls so as to effect a preprocessing, in which light irradiation by the first light source and changing of a light focusing position are performed, so that a pre-shape, which is determined on the basis of a size of a structure of a predetermined shape to be fabricated, is fabricated, and thereafter, a main processing, in which light irradiation by the second light source and changing of the light focusing position are performed, so that the predetermined shape is fabricated from the pre-shape.