PHOTOGRAPHING LENS ASSEMBLY

摘要

A photographing lens assembly includes, in order from an object side to an image side, a first lens element, a second lens element, a third lens element, a fourth lens element, a fifth lens element and a sixth lens element. The first lens element with positive refractive power has a convex object-side surface at a paraxial region. The second through the sixth lens elements have refractive power. The fourth lens element has a concave object-side surface at a paraxial region and a convex image-side surface at a paraxial region. The fifth lens element has an aspheric object-side surface and an aspheric image-side surface. The sixth lens element has a concave image-side surface at a paraxial region, wherein the image-side surface thereof has a convex shape at an off-axis region, and both surfaces thereof are aspheric. The photographing lens assembly has a total of six lens elements with refractive power.

主权项

1. A photographing lens assembly comprising, in order from an object side to an image side thereof:
a first lens element with positive refractive power having a convex object-side surface at a paraxial region thereof; a second lens element having refractive power; a third lens element having refractive power; a fourth lens element with refractive power having a concave object-side surface at a paraxial region thereof and a convex image-side surface at a paraxial region thereof; a fifth lens element having refractive power, wherein both of an object-side surface and an image-side surface of the fifth lens element are aspheric; and a sixth lens element with refractive power having a concave image-side surface at a paraxial region thereof, wherein the image-side surface of the sixth lens element has a convex shape at an off-axis region thereof, and both of an object-side surface and the image-side surface of the sixth lens element are aspheric; wherein the photographing lens assembly has a total of six lens elements with refractive power, a focal length of the photographing lens assembly is f, a curvature radius of the object-side surface of the fifth lens element is R9, a curvature radius of the image-side surface of the fifth lens element is R10, and the following relationship is satisfied:
|f/R9|+|f/R10|<1.1.