| 摘要 |
PROBLEM TO BE SOLVED: To provide an inner lens, in which a vacuum void or drop to be caused by a molding shrinkage is reduced, which has practically sufficient optical performance, and which has sufficient strength and heat resistance even at a portion to be fixed with another part.SOLUTION: An inner lens for a head lamp is prepared by injection-molding a methacrylate resin composition containing a methacrylate resin. In the head lamp inner lens, the methacrylate resin composition satisfies such that the value a (g/10 min) measured under a load 3.80 kgf on the basis of JIS K7210:1999 and a test temperature 230°C, and the value b (g/10 min) measured under a load 10.19 kgf and a test temperature 230°C satisfy the formula (1) of 5.0<b/a and formula (2) of 0.3<a<15.SELECTED DRAWING: Figure 1 |
