Abstract:
This invention is related to creation of a mold for an ophthalmic lens using higher order mathematical functions, such as non-uniform rational b splines (NURBs), to create surfaces that do not contact fluid optical material, such as molding back pieces. In particular, the present invention optimizes the flow of mold material. Additionally, use of the present invention creates substantially uniform thickness of the mold, minimizing optical distortions.
Abstract:
The present invention is directed to a contact lens design, in particular a soft contact lens design, where the optics position relative to the pupil is controlled by the lens relationship to the lower lid. More specifically, the present invention provides a lens design that allows large amplitude translation on the eye through use of an undercut ledge.
Abstract:
The present invention provides methods for lathing at room temperature a silicone hydrogel material, in particular silicone hydrogel material having a high oxygen permeability and made of a polymerizable composition containing a relative large amount of oxyperm component, into contact lenses.
Abstract:
The present invention is related to manufacturing surfaces with an axis decentered from the spindle axis. In particular, the present invention is related to compensating for tool geometry in cutting processes that involve an oscillating tool.
Abstract:
The present invention is related to manufacturing surfaces with an axis decentered from the spindle axis. In particular, the present invention is related to compensating for tool geometry in cutting processes that involve an oscillating tool.