Patent ID: 8867147

Claim:
An imaging lens comprising, in order from an object side: a first lens group; and a second lens group having positive refractive power, the first lens group including, in order from the object side, a first lens component having a negative meniscus shape with a convex surface facing the object side, a second lens component having a negative meniscus shape with a convex surface facing the object side, and a third lens component, at least one of the first lens component and the second lens component including an aspherical surface on an image plane side lens surface, the third lens component including a double concave lens to the most object side, the imaging lens including at least six lens components, and the following conditional expression being satisfied: 0.65 <f /(− fa )<1.15 where f denotes a focal length of the imaging lens, and fa denotes a combined focal length of the first lens component and the second lens component.