发明名称 MOLD FOR OPTICAL ELEMENT
摘要 PROBLEM TO BE SOLVED: To provide a mold for an optical element capable of inexpensively producing a matrix within a short time. SOLUTION: A liquid plastic raw material is injected into the cavity formed by two matrices (projected matrix 11, recessed matrix 12) and the molding gasket 1 held between them and cured to mold an optical element. The projected matrix 11, the recessed matrix 12 and the molding gasket 1 are grasped by a press spring 4. As the molding gasket 1 and the press spring 4, ones used heretofore are used as they are but the projected matrix 11 and the recessed matrix 12 are different from conventional ones and produced by the injection molding of a synthetic resin.
申请公布号 JPH09300371(A) 申请公布日期 1997.11.25
申请号 JP19960121965 申请日期 1996.05.16
申请人 NIKON CORP 发明人 EBI MASAMI;TAKAHASHI KIYOSHI
分类号 B29C33/40;B29C39/26;B29K23/00;B29L11/00;(IPC1-7):B29C39/26 主分类号 B29C33/40
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