Method for designing a mould for casting a semi-finished ophthalmic lens blank, method for assembling a mould assembly, method for casting a semi-finished ophtalmic lens blank and computer program product for carrying out said methods

摘要

The invention refers to a method for designing a mould (120) for casting a semi-finished ophthalmic lens blank, wherein the surface of the mould (120) is designed so that said surface of the mould fits a predetermined closed curve, wherein the predetermined closed curve is representative of the geometry of a gasket (160) to be used in association with the mould (10). The invention also refers to a method for assembling a mould assembly (100) and a method for casting a semi-finished ophthalmic lens blank. Finally the invention refers to a computer program product comprising software code portions for performing steps of these methods.