PHOTOGRAPHING OPTICAL LENS ASSEMBLY, IMAGING DEVICE AND MOBILE TERMINAL

摘要

A photographing optical lens assembly comprises, 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 and a fifth lens element. The first lens element with refractive power has a concave object-side surface in a paraxial region. The second lens element has refractive power. The third lens element has refractive power. The fourth lens element with negative refractive power has an object-side and an image-side surfaces both being aspheric. The fifth lens element with refractive power has an aspheric object-side surface and an aspheric image-side surface being concave in a paraxial region with at least one inflection point. The photographing optical lens assembly has a total of five lens elements with refractive power.

主权项

1. A photographing optical lens assembly comprising, in order from an object side to an image side:
a first lens element; a second lens element, both of an object-side surface and an image-side surface of the second lens element being aspheric; a third lens element, both of an object-side surface and an image-side surface of the third lens element being aspheric; a fourth lens element having negative refractive power, both of an object-side surface and an image-side surface of the fourth lens element being aspheric; and a fifth lens element having an image-side surface being concave in a paraxial region thereof, at least one inflection point on the image-side surface, and both of an object-side surface and the image-side surface of the fifth lens element being aspheric; wherein the photographing optical lens assembly has a total of five lens elements, a curvature radius of an object-side surface of the first lens element is R1, a curvature radius of an image-side surface of the first lens element is R2, an axial distance between the object-side surface of the first lens element and an image surface is TL, a maximum image height of the photographing optical lens assembly is ImgH, and the following conditions are satisfied:
1.00<(R1+R2)/(R1−R2)<3.00; andTL/ImgH<2.5.