Patent ID: 8502906
Filing Date: 2013-08-06
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, 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 with a positive or negative refractive power; 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, comprising a concave surface facing the image side, 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 expression: where n2 is a refractive index of the second lens for d-line.