| 摘要 |
PROBLEM TO BE SOLVED: To provide a product of a low aberration by reducing internal distortion by securing the transfer properties of the surface of a resin and reducing the temperature difference between the surface and center of the resin by selectively heating only the surface of a mold without consuming excess energy. SOLUTION: In the injection molding mold, a fixed mold (2), a movable mold (3) which is movable in relation to the fixed mold and forms a cavity between it and the fixed mold by contacting the fixed mold, and a resin channel which comprises a nozzle gate, a runner, and a sprue and penetrates the fixed mold are provided, and a resin is charged into the cavity through the resin channel to be molded. A hole is formed to a position separated by 1-10 mm downward with a lens insert transfer surface of at least one of the fixed mold and the movable mold made as an upper reference, and a heating source is inserted into the hole. COPYRIGHT: (C)2006,JPO&NCIPI |
