| 摘要 |
PROBLEM TO BE SOLVED: To automate a step in which a plastic raw liquid is injected into a mold for molding in a manufacturing process for plastic lens. SOLUTION: When an injection hole 7 is formed in a mold 5 for molding in which a glass mold 1 on the side of an eyeball is connected to a glass mold 2 on the side of an object through an adhesive tape 3, the hole 7 is formed at a location spaced apart from the mold 1 by a minimum distance L. Thus, even if the tape 3 is curved toward a cavity 4 to form a recess in the mold 5, bubbles are prevented from being generated, and hence a plastic product free from defective shapes can be manufactured so that plastic lenses of good quality can be provided even if they are manufactured in an automated process. |
