Patent ID: 9335515
Filing Date: 2016-05-10
CPC Classification: G02B

Claim Text:
1. An imaging lens with five lenses, consisting of, ordered as follows from an object side: a first lens having a positive refractive power and having a meniscus shape with a convex surface toward the object side; a second lens having a biconcave shape; a third lens having a negative refractive power and having a meniscus shape with a convex surface toward an image side; a fourth lens having a positive refractive power; and a fifth lens having a negative refractive power, wherein an image-side surface of the fifth lens includes a concave surface and at least one inflection point, wherein the conditional expression below is satisfied: where f is a focal length of the entire system, and f4 is a focal length of the fourth lens, and wherein the conditional expression below is further satisfied: where L1r is a paraxial radius of curvature of an image-side surface of the first lens, and L2f is a paraxial radius of curvature of an object-side surface of the second lens.