Patent ID: 9547158
Date: 2017-01-17
CPC Classifications: G02B

Claim:
1. An imaging lens consisting of five lenses, including: a first lens, having a positive refractive power with a convex surface toward the object side; a second lens, having a negative refractive power; a third lens, having a positive refractive power and a meniscus shape with a convex surface toward the object side; a fourth lens, having a negative refractive power and a meniscus shape with a convex surface toward the image side; and a fifth lens, having a negative refractive power with a concave surface toward the image side, the image-side surface thereof having at least one inflection point, the first lens, the second lens, the third lens, the fourth lens, and the fifth lens being disposed in this order from the object side; wherein, the imaging lens satisfies conditional formulae (1), (5-1), and (8) below: where, f3 is the focal length of the third lens, f1 is the focal length of the first lens, f is the focal length of the entire system of the imaging lens, and D