发明名称 |
Process and Device for the Manufacturing of Optical Elements |
摘要 |
Optical material 1, which was already roughly molded, is deposited into a space defined by a top mold 2, a bottom mold 3 and a drum mold 4, and is then heated, pressed and molded, thus providing an optical element. By controlling the rate of plastic deformation of the optical material so as to prevent the material from entering clearance sections between the outside diameter of the top mold or of the bottom mold and the inside diameter of the drum mold, an optical element of high precision with no burr nor strain is provided at low cost. <IMAGE> |
申请公布号 |
EP0710540(B1) |
申请公布日期 |
2001.04.04 |
申请号 |
EP19950116861 |
申请日期 |
1995.10.26 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD |
发明人 |
TOSHIAKI, TAKANO;JUN, MURATA;SHOJI, NAKAMURA;MASAAKI, SUNOHARA;TAKAHISA, KONDOU |
分类号 |
G02B5/04;B29B9/00;B29B11/08;B29C43/00;B29C43/02;B29C43/36;B29C43/52;B29C43/58;B29D11/00;B29L11/00;G02B3/00;G02B5/08 |
主分类号 |
G02B5/04 |
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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