Systems and methods for the production of contact lenses

An apparatus for spin casting lenses, comprising:

• a rotatable tube, the rotatable tube defining a longitudinal cavity, wherein:
• the rotatable tube defines a zone partially made of a material opaque to actinic radiation, the longitudinal cavity extending through the zone and the longitudinal cavity having a reflective inner surface and a diameter sized for at least two contact lens molds, the at least two contact lens molds configured to be arranged concentrically relative to the rotatable tube within the longitudinal cavity;
• a bearing mounting zone formed on an end of the rotatable tube, the bearing mounting zone being free of apertures;
• and
• the rotatable tube is configured to allow homogeneous irradiation by the actinic radiation of the at least two contact lens molds disposed within the zone.