Patent ID: 7830622

Claim:
An imaging lens comprising, in order from an object side: an aperture stop; a first lens having a positive refractive power in a meniscus form having a convex surface facing toward the object; a second lens having a negative refractive power in a meniscus form having a concave surface facing toward the object; and a third lens having a negative refractive power in an aspheric form at both surfaces, wherein conditional expressions given below are satisfied: νd1>50 (1) νd3>50 (2) 0.7 <f 1 /f< 1.0 (3) −0.9 <f 2/{ f 3·(45−ν d 2)}≦−0.08 (4″) where νd 1 : Abbe number of the first lens, νd 2 : Abbe number of the second lens, νd 3 : Abbe number of the third lens, f: Focal length of an overall system, f 1 : focal length of the first lens, f 2 : focal length of the second lens, and f 3 : focal length of the third lens.