| 摘要 |
To provide an image pickup lens with a five-lens structure characterized by various forms of aberrations corrected to a satisfactory level despite the compact design, and to provide a compact high-performance image pickup apparatus and portable terminal using this image pickup lens, this image pickup lens includes a first positive lens (focal distance: f1) having the convex surface facing the object side, a second negative lens having the concave surface facing the image side, a third positive lens (focal distance: f3) having the convex surface facing the image side, a fourth positive meniscus lens having the convex surface facing the image side, and a fifth negative lens having the concave surface facing the image side, arranged in that order as viewed from the object side. The surface of the fifth lens on the image side is aspherical, and an inflection point is located at a position other than the intersection point with the optical axis. The aperture stop is located closer to the image than the first lens, and the conditional expression (1) is met: 0.8 < f �¢ 3 / f �¢ 1 < 2.6 |
