发明名称 |
MEMBER FOR FORMING ELEMENT, METHOD OF MANUFACTURING ELEMENT, AND ELEMENT |
摘要 |
When a groove is provided for letting gas out of a die for molding a material constituting an optical element, a warped shape is sometimes transferred to the lens or other optical element molded from the material. When a through-hole is provided in a hollow body disposed on the outside of the external peripheral surface of the die, the strength of the body is severely reduced. In the present invention, a groove for letting out gas is provided in at least part of the internal peripheral surface of the body facing the die.
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申请公布号 |
US2011135865(A1) |
申请公布日期 |
2011.06.09 |
申请号 |
US200913059609 |
申请日期 |
2009.10.26 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
UENO TOMOYUKI;HASEGAWA MASATO;TERAOKA KANJI |
分类号 |
B29D11/00;B28B7/02;G02B3/00 |
主分类号 |
B29D11/00 |
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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