Lens mold

Details Lens mold Lens mold

B - Operations, Transporting

29

C

B29C 33/42 (2006.01) B22D 11/00 (2006.01) B29C 33/00 (2006.01) B29C 33/40 (2006.01) B29C 33/44 (2006.01) B29D 11/00 (2006.01) G01M 11/02 (2006.01) B29C 35/08 (2006.01)

Patent

CA 2128381

LENS MOLD ABSTRACT A lens mold includes first and second mold members respectively having a concavesurface and a convex surface for defining therebetween a lens cavity. One of the first and second mold members is configured to mechanically engage a ring of excess lens material upon polymerization of the lens material. Alternately, one of the first and second mold members includes a material formed along the periphery of a lens cavity which causes the ring of excess lens material thereto. Furthermore, one of the first and second mold members is formed of a relatively transparent plastic material and includes an outer surface having an optical finish to permit optical inspection of a lens located on one of the concave and convex surfaces. Alternately, one of the first and second mold members is formed of a relatively opaque plastic material and includes an inner surface having an optical finish to permit optical inspection of a lens located on one of the concave and convex surfaces.

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