Optical imaging lens assembly, image capturing unit and electronic device
AssigneeLargan Precision Co., Ltd.
InventorsPo-Lun Hsu, Tzu-Chieh Kuo
Life of this patent
Estimating the term…
Abstract
An optical imaging lens assembly includes seven lens elements which are, 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, a sixth lens element and a seventh lens element. Each of the seven lens elements of the optical imaging lens assembly has an object-side surface facing toward the object side and an image-side surface facing toward the image side. At least one lens element of the optical imaging lens assembly has at least one aspheric lens surface having at least one inflection point. The object-side surface of the seventh lens element is concave in a paraxial region thereof.
Claims13
An optical imaging lens assembly comprising seven lens elements, the seven lens elements being, 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, a sixth lens element and a seventh lens element;
- each of the seven lens elements having an object-side surface facing toward the object side and an image-side surface facing toward the image side;
- wherein at least one lens element of the optical imaging lens assembly has at least one aspheric lens surface having at least one inflection point, and the object-side surface of the seventh lens element is concave in a paraxial region thereof;
- wherein an Abbe number of the sixth lens element is V6, a curvature radius of the object-side surface of the fourth lens element is R7, a curvature radius of the object-side surface of the seventh lens element is R13, a curvature radius of the image-side surface of the seventh lens element is R14, a focal length of the optical imaging lens assembly is f, a focal length of the fourth lens element is f4, a focal length of the fifth lens element is f5, a focal length of the sixth lens element is f6, an axial distance between the object-side surface of the first lens element and the image-side surface of the seventh lens element is TD, and the following conditions are satisfied:
- 12.0<V6<34.0;
- 2.20<|R14/R13|;
- |f/f4|+|f/f5|+|f/f6|<1.20;
- and
- 2.80<|R7|/TD.
Dependencies are inferred from the claim text.