| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an imaging lens that achieves a small F-number while reducing entire lens length relative to an image size so as to be able to correspond to an imaging element whose size satisfies a demand for increase in the number of pixels, and an imaging device including the imaging lens.SOLUTION: An imaging lens are substantially composed of five lenses that are, in order from an object side: a first lens L1 that has positive refractive power and has a convex surface facing the object side; a second lens L2 that has negative refractive power and has a concave surface facing the object side; a meniscus-shaped third lens L3 that has positive refractive power and has a convex surface facing the object side; a meniscus-shaped fourth lens L4 that has positive refractive power and has a concave surface facing the object side; and a fifth lens L5 that has negative refractive power, has a concave surface facing an image side, and has a surface on the image side having at least one inflection point radially and inwardly toward an optical axis from an intersection point between the surface on the image side and a principal ray of a maximum angle of view. The imaging lens satisfies a predetermined conditional expression.</p> |
