发明名称 |
Method for manufacturing preforms used in molding optical elements and method for manufacturing and molding optical elements |
摘要 |
A method for manufacturing preforms used in molding optical elements includes: (1) forming an array made from a material for optical elements, in which a plurality of preform portions used in molding optical elements are connected; (2) applying vibration to the outer peripheral part of the preform portion in the thickness direction of the array by a pair of punches; and then (3) punching the preform portions.
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申请公布号 |
US6007746(A) |
申请公布日期 |
1999.12.28 |
申请号 |
US19970965955 |
申请日期 |
1997.11.07 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
MURATA, JUN;TAKANO, TOSHIAKI;SUNOHARA, MASAAKI |
分类号 |
B29B11/04;B29C43/02;B29C43/36;B29D11/00;B29K23/00;B29L11/00;(IPC1-7):B29D11/00 |
主分类号 |
B29B11/04 |
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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