Patent ID: 8462257
Filing Date: 2013-06-11
Classification: G02B,H04N

Abstract:
1. An image pickup lens for forming an image of a subject onto a photoelectric conversion section of a solid-state image pickup element comprising an image pickup surface with a diagonal length 2Y, the image pickup lens comprising, in order from an object side thereof: a first lens with a positive refractive power, comprising a convex surface facing the object side; a second lens with a negative refractive power, comprising a concave surface facing an image side; a third lens comprising an aspheric surface; a fourth lens with a positive refractive power, comprising a convex surface facing the image side; and a fifth lens with a negative refractive power, wherein an image-side surface of the fifth lens has an aspheric shape, and includes an inflection point at a position excluding an intersection point with an optical axis, and the image pickup lens satisfies the following conditional expressions: where ν1 is an Abbe number of the first lens, ν2 is an Abbe number of the second lens, and L is a distance along the optical axis from a lens surface arranged at a closest position to the object side in a total system of the image pickup lens to a focal point at the image side.