| 摘要 |
An imaging lens comprises, in order from an object side: a first lens (11) having a negative refractive power with a concave surface on an image side thereof; a second lens (12) with at least one aspherical surface; an aperture stop; and a third lens (13) having a positive refractive power with at least one aspherical surface, wherein the first lens is formed of an optical glass whose Abbe number is 40 or more, the second lens is formed of a plastic whose Abbe number is 40 or less, and the third lens is formed of a plastic whose Abbe number is 50 or more, and wherein assuming that a point, where a light ray which constitutes an outermost light ray in light rays which enter an image plane intersects a lens surface, constitutes an effective aperture terminating edge, the second lens (12) is such that an intersection point between an object side surface and an optical axis (P1) lies closer to an.image forming side of the imaging lens than an effective aperture terminating edge (P2) of the object side surface does.
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