US Patent 9557531 Imaging lens and imaging apparatus equipped with the imaging lens

An imaging lens, substantially consisting of six lenses, composed of a first lens having a positive refractive power and a meniscus shape with a convex surface on the object side, a second lens having a negative refractive power, a third lens having a positive refractive power, a fourth lens having a positive refractive power, a fifth lens having a negative refractive power and a biconcave shape, and a sixth lens having a negative refractive power, disposed in order from the object side.