3D printing of an intraocular lens having smooth, curved surfaces

Australia Patent

PATENT NO 2018237869
APP PUB NO AU-2018237869-A1
SERIAL NO

2018237869

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A continuous additive fabrication system (100) comprises a bath of photopolymer resin and a light source assembly (104) having a light source (112) and a motorized variable aperture (114). The light source assembly is operable to generate a focus point (108) in the bath of photopolymer resin, the shape of the focus point at a curing plane within the bath of photopolymer resin corresponding to the shape of the motorized variable aperture. The continuous additive fabrication system further comprises a platform (106) configured to support a build object and a drive mechanism (110) (coupled to at least one of the platform and the light source assembly) configured to continuously move the curing plane through the bath of photopolymer resin. A size and/or shape of the motorized variable aperture is changed while the curing plane in continuously moved through the bath of photopolymer resin.

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