A door and a method for manufacturing a door are described. The subject devices include a dilatorsheath assembly configured for operatively holding an anastomotic connector for subsequent delivery into target and graft vessels, etc. First and second pulse widths values are then compared. On the other hand, a first refractive prism portion, by which light of a predetermined incident angle or less is refracted to outgo to a direction along an optical axis of the Fresnel lens sheet, and a second refractive prism portion, by which light reflected to the direction toward the optic axial center of the Fresnel lens sheet is changed to the direction along the optical axis.