Method and apparatus for molding opthalmic lenses using...

Details Method and apparatus for molding opthalmic lenses using... Method and apparatus for molding opthalmic lenses using...

B - Operations, Transporting

29

D

B29D 11/00 (2006.01) B29C 35/08 (2006.01) B29C 39/24 (2006.01) B29C 39/42 (2006.01) B29C 45/03 (2006.01) B29C 45/28 (2006.01) B29C 45/34 (2006.01)

Patent

CA 2148435

A lens mold cavity is formed and then evacuated via a vacuum channel contained within a mold member. A fluid valve is opened to exposed the lens mold cavity to liquid lens material, whereby a vacuum of the lens mold cavity draws the liquid lens material to fill the lens mold cavity. The fluid valve is then closed and the liquid lens material within the lens mold cavity is cured to obtain an opthalmic lens such as a contact lens.

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