发明名称 |
Method of injection molding plastic lens |
摘要 |
A method of injection molding a plastic lens by filling molten resin into a cavity of a heated injection molding assembly. The molten resin is then pressurised and subsequently cooled within the assembly to solidify the resin to form a lens. Finally, the lens is ejected from the cavity. The cooling time of the assembly is determined in accordance with the power of the lens to be formed. <IMAGE> |
申请公布号 |
EP1273424(A1) |
申请公布日期 |
2003.01.08 |
申请号 |
EP20020012393 |
申请日期 |
1997.03.18 |
申请人 |
HOYA CORPORATION |
发明人 |
SAITO, KIYOHIRO;ASAMI, HIROSHI |
分类号 |
B29C45/56;B29C45/73;B29D11/00 |
主分类号 |
B29C45/56 |
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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