Patent ID: 9323029
Filing Date: 2016-04-26
CPC Classification: G02B

Claim Text:
1. An imaging lens consisting essentially of six lenses, including: a first lens of a biconvex shape; a second lens having a negative refractive power; a third lens having a positive refractive power and is of a meniscus shape with a convex surface toward the object side; a fourth lens having a positive refractive power; a fifth lens having a negative refractive power; and a sixth lens having a negative refractive power and a concave surface toward the image side, provided in this order from the object side; the imaging lens satisfying the following conditional formula: wherein L5f is the paraxial radius of curvature of the surface of the fifth lens toward the object side, and L5r is the paraxial radius of curvature of the surface of the fifth lens toward the image side.