Patent ID: 8248715

Claim:
An imaging lens consisting: in order from an object side thereof, a front group having a negative power; a stop; and a rear group having a positive power, wherein the front group consists of, in order from the object side, a first lens having a negative power and having a concave surface on an image side thereof, a second lens having a negative power where an object-side lens surface thereof has a radius of curvature whose absolute value is larger than that of an image-side lens surface thereof, and a third lens having a positive power, the rear group consists of, in order from the object side, a fourth lens having a positive power, a fifth lens having a negative power and having a meniscus shape with a concave surface on the object side, and a sixth lens having a positive power, each of the first lens, the second lens, the fourth lens, and the sixth lens has an Abbe number of 40 or more at the d-line, and each of the third lens and the fifth lens has an Abbe number of 40 or less at the d-line, and each lens in the front group and the rear group is a single lens.