| 摘要 |
PROBLEM TO BE SOLVED: To inexpensively provide a resin molding which does not have a recess on its surface due to shrinkage at the time of injection molding, has a smooth surface being a design surface, and is excellent in appearance.SOLUTION: A front lens 20 (resin molding) includes a lens body portion 40 (primary molding) and a seal portion 50 (secondary molding) which are integrated with one another by injection molding with double molding. A mounting portion 52 (salient) is formed on a surface 50a of the seal portion 50. A surface 40a of the lens body portion 40 is smooth. On a rear surface 40b of the lens body portion 40, each of ribs 41 and 42 (projections) are formed in portions corresponding to the mounting portion 52. The seal portion 50 covers a rear surface 40b of the lens body portion 40 including each of the ribs 41 and 42. |
