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AssigneeBausch & Lomb Incorporated
InventorsGriffith E. Altmann, Lisa A. Armstrong, Kevin D. Beebe, Ian G. Cox, Horngyih Huang, Michael A. Lesczynski, Arthur W. Martin, Michelle L. Moran, Joseph Papalia, Dominic V. Ruscio
Estimating the term…
A method and mold assembly to control the polymerization of a molded article. In one embodiment, an amorphous posterior mold comprising a non-critical surface having a controlled radius of curvature is used to produce molded articles. In an alternate embodiment, ophthalmic lenses are produced using a posterior mold in which the concave surface of the non-critical surface is filled with a liquid having a similar refractive index as the mold material. In still another embodiment, a positive lens is placed at a predetermined distance adjacent to the mold assembly to alter the irradiation path to the mold assembly. In still another embodiment, a positive lens is placed within the concave surface of the posterior lens.
A method of casting an ophthalmic lens within a mold assembly, said assembly comprised of first and second mold portions, said first mold portion comprised of an amorphous material and having first and second opposing surfaces, said first surface comprised of a concave surface and said second surface comprising an optical lens-forming surface, said second mold having first and second opposing surfaces, said first surface comprising an optical lens-forming surface, said method comprising the steps of:
A method of casting an ophthalmic lens within a mold assembly, said assembly comprised of first and second mold portions, said first mold portion comprised of an amorphous material and having first and second opposing surfaces, said first surface comprised of a concave surface having a controlled radius of curvature and said second surface comprising an optical lens-forming surface, said second mold having first and second opposing surfaces, said first surface comprising an optical lens-forming surface, said method comprising the steps of:
A mold assembly comprising first and second mold portions, said first mold portion having first and second opposing surfaces, said first surface comprised of a concave surface having a controlled radius of curvature and said second surface comprising an optical lens-forming surface, said second mold having first and second opposing surfaces, said first surface comprising an optical lens-forming surface, wherein said mold portions matingly engage to form a lens forming cavity therebetween said second surface of said first mold and said first surface of said second mold.
A method of casting an ophthalmic lens within a mold assembly, said assembly comprised of first and second mold portions, said first mold portion comprised of an amorphous material and having first and second opposing surfaces, said first surface comprised of a concave surface and said second surface comprising an optical lens-forming surface, said second mold having first and second opposing surfaces, said first surface comprising an optical lens-forming surface, said method comprising the steps of:
A method of casting an ophthalmic lens within a mold assembly, said assembly comprised of first and second mold portions, said first mold portion comprised of an amorphous material and having first and second opposing surfaces, said first surface comprised of a concave surface and said second surface comprising an optical lens-forming surface, said second mold having first and second opposing surfaces, said first surface comprising an optical lens-forming surface, said method comprising the steps of:
A method of casting an ophthalmic lens within a mold assembly, said assembly comprised of first and second mold portions, said first mold portion comprised of an amorphous material and having first and second opposing surfaces, said first surface comprised of a concave surface and said second surface comprising an optical lens-forming surface, said second mold having first and second opposing surfaces, said first surface comprising an optical lens-forming surface, said method comprising the steps of:
Dependencies are inferred from the claim text.