Patent ID: 11897190
Assignee: ALCON INC.
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. A continuous additive fabrication system for forming an intraocular lens (IOL), comprising:
a bath of photopolymer resin;
a light source assembly comprising a light source and a motorized variable aperture, the light source assembly operable to generate a focus point in the bath of photopolymer resin, a shape of the focus point at a curing plane within the bath of photopolymer resin corresponding to a shape of the motorized variable aperture;
a platform configured to support cured polymer comprising the IOL; and
a drive mechanism coupled to at least one of the platform or the light source assembly, the drive mechanism configured to continuously move at least one of the curing plane or the platform through the bath of photopolymer resin,
wherein:
at least one of a size or shape of the motorized variable aperture is changed while the at least one of the curing plane or the platform is continuously moved through the bath of photopolymer resin to form the IOL with a smooth hemispherical shape.