| 摘要 |
PROBLEM TO BE SOLVED: To provide a plastic lens molding having high accuracy in the form and high optical performance without using a rib structure. SOLUTION: The plastic lens molding is a long article having a longer longitudinal dimension than the cross sectional dimension. The cross section is a square with the height T1 and the average width T4 of the cross section satisfying T4/T1<1. |
