Patent ID: 7660050

Claim:
An imaging lens comprising, in order from an object side: a first lens having a positive refractive power and a meniscus shape and having a convex surface directed to the object side; a second lens having a negative refractive power in the vicinity of an optical axis of the imaging lens; and a third lens having a positive refractive power in the vicinity of the optical axis, wherein at least one surface of each of the second lens and the third lens is an aspheric surface; and the imaging lens satisfies the following conditional expressions: 0.7<| f 1/ f|< 0.8 (1) 0.3<| f 2 /f|< 0.8 (2) 75< ν d 1 <96 (3) TL/ 2 Y< 0.9 (4) where f: focal length of the imaging lens; f 1 : focal length of the first lens; f 2 : focal length of the second lens; ν d 1 : Abbe number of the first lens for the d-line; TL: length between the object-side surface of the first lens to an image forming position of the imaging lens; and Y: maximum image height.