| 摘要 |
<p>[Problem] To provide: an imaging lens that has a small f-number, and achieves a reduction of the overall length and high resolution, while maintaining an image size that enables a desired resolution to be achieved; and an imaging device provided with the imaging lens. [Solution] This imaging lens essentially comprises five lenses consisting of, from the object side, a first lens (L1) having a positive refractive power and a convex face facing the object side; a second lens (L2) having a concave face facing the image side; a third lens (L3) having a negative refractive power and a concave face facing the image side; a fourth lens (L4) having a convex face facing the image side; and a biconcave fifth lens (L5). The imaging lens satisfies a prescribed conditional expression.</p> |
