| 摘要 |
PROBLEM TO BE SOLVED: To provide a five-lens imaging lens that causes less stray light while being smaller than conventional types, and that has excellently corrected various aberrations.SOLUTION: An imaging lens 10 forms a subject image on an imaging surface (projected surface) I of an imaging element 51, and comprises, in order from an object side: a positive first lens L1 having a convex surface facing the object side; a second lens L2 that is negative in the vicinity of an optical axis AX; a third lens L3; a fourth lens L4; and a negative fifth lens L5 having a concave surface facing an image side. The imaging lens 10 satisfies a conditional expression (1): 0.75<dΦ/dz<2.5, and the like. Here, a value dΦ is a difference between a diameter of a flare stop between the fourth and fifth lenses and a diameter of a flare stop between the third and fourth lenses, and a value dz is an interval between the flare stop between the fourth and fifth lenses and the flare stop between the third and fourth lenses. |
