An image scanning lens includes four lens components that may include five lens
elements as follows: a first lens element having negative refractive power and
a meniscus shape with its convex surface on the object side, a second lens element
having positive refractive power and a meniscus shape with its convex surface on
the object side, a stop, a third biconcave lens element cemented to a fourth biconvex
lens element, and a fifth lens element having negative refractive power and a meniscus
shape with its concave surface on the object side. The image scanning lens satisfies
certain conditions related to the focal lengths of the first, second, and third
lens components of the image scanning lens and to the anomalous dispersion of the
second lens element. An image scanning device, such as an image scanner, with an
image pickup device, such as a CCD, uses the image scanning lens.