发明名称 PLASTICS MOLDING SYSTEM AND OPTICAL ELEMENT FORMED BY THE SAME
摘要 A molding method of a plastic molded product includes preparing at least one mold including a high-precision surface; preparing a plurality of molds having a low-precision surface; sequentially supplying molten resin to one of the plurality of molds having low-precision surface; sequentially cooling, for a predetermined length of time, the molds supplied with the molten resin while applying pressure, taking out a molded member from the cooled mold, setting the molded member which has been taken out in the mold having the high-precision surface, and melting only a surface of the molded member while pressing the high-precision surface against the surface to form a plastic molded product.
申请公布号 US2011233800(A1) 申请公布日期 2011.09.29
申请号 US201113044755 申请日期 2011.03.10
申请人 CANON KABUSHIKI KAISHA 发明人 OGANE MASANOBU;TAKATA ATSUSHI
分类号 B29C45/72 主分类号 B29C45/72
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