| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a molding die for molding a lens, in which refractive index as molded can be easily measured. <P>SOLUTION: In the lens molding die including one movable molding die and one fixed molding die, the movable molding die includes one runner and one main sprue, while the fixed molding die includes at least two mold cavities formed on the molding surface of the fixed molding die, at least two branch sprues passing through the cavity and one hot runner formed facing the main sprue and, in addition, the hot runner includes two planes normal to each other. <P>COPYRIGHT: (C)2010,JPO&INPIT |
