ULTRAVIOLET RAY RADIATION APPARATUS AND METHOD FOR CURING PHOTO-CURABLE COMPOSITION

摘要

The invention is directed to an ultraviolet ray irradiation apparatus, which includes an ultraviolet ray-emitting portion configured to irradiate ultraviolet lay in a single direction; and a light-collecting reflector disposed apart from the ultraviolet ray-emitting portion, and opposed to the ultraviolet ray-emitting portion. The light-collecting reflector can reflect ultraviolet lay emitted from the ultraviolet ray-emitting portion to direct the ultraviolet lay reflected from the light-collecting reflector to a location or space between the ultraviolet ray-emitting portion and the light-collecting reflector.