| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an image capturing lens which is as compact as conventional lenses and yet offers a larger aperture, good correction for various aberrations, and a seven-lens configuration.SOLUTION: An image capturing lens 10 comprises, in order from the object side, a first lens L1, a positive second lens L2, a third lens L3, a fourth lens L4, a fifth lens L5, a sixth lens L6, and a seventh lens L7, where the seventh lens L7 has an aspherically shaped image-side surface S72 having an extremum at a position other than the center within an effective diameter thereof. The image capturing lens 10 satisfies the following conditional expression: 15<θS6<45, whereθS6 represents a maximum surface angle, with the image side being positive, of an image-side surface S32 of the third lens L3 within an effective diameter thereof. Here, the effective diameter is defined as an aperture diameter when an aperture is provided either on the object side or the image side of the third lens L3, as a diameter of a larger aperture when an aperture is provided on each side thereof, and as a height of a marginal ray of light rays forming an image at a maximum image height when an aperture is provided on neither side.</p> |
