Contact lens mold

An ophthalmic lens mold, said mold comprising;

• a first mold half having a center section defining an optical surface having a circular circumferential edge;
• and
• a second mold half having a center section of substantially defining an optical surface,
• wherein one of said optical surfaces is convex and the other of said optical surfaces is concave,
• wherein, upon alignment of said first mold half with respect to said second mold half so that said optical surfaces oppose each other, a mold cavity is formed between said mold halves to form an ophthalmic lens therein from a moldable material so that said optical surfaces form respective opposing optical surfaces of said ophthalmic lens, and
• wherein said first mold half includes
• a first section that transmits curing light from a light source and that includes at least said first mold half center section, and
• a second section co-molded with said first section and that blocks said curing light, said second section surrounding said first section so that said second section prevents said curing light from passing through said first mold half into an area of said mold cavity that extends radially outward of a boundary parallel to said axis and including said circumferential edge and so that said first section passes said curing light to an area of said mold cavity bounded by and within said boundary;
• wherein said first section includes polymethylmethacrylate said second section includes polymethylmethacrylate and butadiene.

An ophthalmic lens mold, said mold comprising:

• a first mold half having a center section defining an optical surface having a circular circumferential edge;
• and
• a second mold half having a center section defining an optical surface;
• wherein one of said optical surfaces is convex and the other of said optical surfaces is concave,
• wherein, upon alignment of said first mold half with respect to said second mold half so that said optical surfaces oppose each other, a mold cavity is formed between said mold halves to form an ophthalmic lens therein from a moldable material so that said optical surfaces form respective opposing optical surfaces of said ophthalmic lens,
• wherein said first mold half includes
• a first section that transmits curing light and that includes said first mold half center section, and
• a second section co-molded with said first section and that blocks said light, said second section surrounding said first section so that said second section prevents collimated said curing light from passing through said first mold half parallel to the axis of said circumferential edge into an area of said mold cavity that extends radially outward of a boundary parallel to said axis and includes said circumferential edge and so that said first section passes said collimated light to an area of said mold cavity bounded by and within said boundary,
• wherein said first section includes at least one extension extending radially outward from said center section into said second section, and
• wherein one of said first mold half and said second mold half includes an annular collar that, upon said alignment of said first mold half and said second mold half, receives the other said mold half and aligns said optical surface of said other mold half with respect to said optical surface of said one of said first mold half and said second mold half;
• wherein said first section includes polymethylmethacrylate said second section includes polymethylmethacrylate and butadiene.