发明名称 |
LENS MOLD |
摘要 |
LENS MOLD 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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申请公布号 |
CA2128381(A1) |
申请公布日期 |
1995.01.22 |
申请号 |
CA19942128381 |
申请日期 |
1994.07.19 |
申请人 |
CIBA-GEIGY AG |
发明人 |
SU, KAI C.;WHITE, JACK C.;SIDDIQUI, MUSHIR |
分类号 |
B29C33/38;B29C33/00;B29C33/40;B29C33/42;B29C33/44;B29C35/08;B29C39/02;B29C39/26;B29D11/00;B29L11/00;G01M11/02;(IPC1-7):B29C33/42;B22D11/00 |
主分类号 |
B29C33/38 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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