Five-piece imaging lens assembly

摘要

The present disclosure illustrates a five-piece imaging lens assembly which includes an aperture stop, an optical lens assembly, an image plane. The optical lens assembly, in order from an object side to an image side, includes a first lens element with positive refractive power adjacent to the optical axis and having a convex object-side surface, a second lens element with negative refractive power adjacent to the optical axis and having a concave object-side surface, a third lens element and a fourth lens element with refractive power adjacent to the optical axis, and a fifth lens element with negative refractive power adjacent to the optical axis and having a convex image-side surface. At least one of the object-side surface and the image-side surface of the fifth lens element has an inflection point. The image plane is for image formation for an object.

主权项

1. A five-piece imaging lens assembly, comprising:
an aperture stop; an optical lens assembly, in order from an object side to an image side comprising:
a first lens element with positive refractive power adjacent to the optical axis, having a convex object-side surface adjacent to the optical axis;a second lens element with negative refractive power adjacent to the optical axis, having a concave object-side surface adjacent to the optical axis;a third lens element with refractive power adjacent to the optical axis;a fourth lens element with refractive power adjacent to the optical axis; anda fifth lens element with negative refractive power adjacent to the optical axis, having a convex image-side surface, and at least one of the object-side surface and the image-side surface of the fifth lens having an inflection point located between the optical axis and the peripheral surface; and an image plane, for image formation for an object; wherein the maximum height difference of the fifth lens element approaching the image-side surface and the optical axis being the center within the diameter range of the aperture stop is S10H, the diameter of the aperture stop is AD, and they satisfy the relation:
|S10H/AD|*100<1.5.