Image capturing optical assembly, imaging apparatus and electronic device
AssigneeLargan Precision Co., Ltd.
InventorHsin-Hsuan Huang
Life of this patent
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Abstract
An image capturing optical assembly includes, in order from an object side to an image side, a first lens group, a second lens group and a third lens group, wherein the first lens group includes a first lens element and a second lens element, the second lens group includes a third lens element, a fourth lens element and a fifth lens element, and the third lens group includes a sixth lens element, a seventh lens element and an eighth lens element. At least one surface of at least one of the lens elements of each lens group is aspheric. At least one surface of at least one of the lens elements includes at least one inflection point.
Claims28
An image capturing optical assembly comprising, in order from an object side to an image side:
- a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof;
- a second lens element having negative refractive power;
- a third lens element having an image-side surface being concave in a paraxial region thereof;
- a fourth lens element;
- a fifth lens element;
- a sixth lens element;
- a seventh lens element having an image-side surface being concave in a paraxial region thereof;
- and
- an eighth lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element comprises at least one inflection point;
- wherein a total number of lens elements in the image capturing optical assembly is eight;
- at least one of the eight lens elements has an Abbe number smaller than 23.0.
An image capturing optical assembly comprising, in order from an object side to an image side:
- a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof;
- a second lens element having negative refractive power;
- a third lens element;
- a fourth lens element;
- a fifth lens element having positive refractive power;
- a sixth lens element;
- a seventh lens element having an image-side surface being concave in a paraxial region thereof;
- and
- an eighth lens element having an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element comprises at least one inflection point;
- wherein a total number of lens elements in the image capturing optical assembly is eight;
- at least one of the eight lens elements has an Abbe number smaller than 23.0.
An image capturing optical assembly comprising, in order from an object side to an image side:
- a first lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof;
- a second lens element having negative refractive power;
- a third lens element;
- a fourth lens element;
- a fifth lens element;
- a sixth lens element;
- a seventh lens element;
- and
- an eighth lens element having an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the eighth lens element comprises at least one inflection point;
- wherein a total number of lens elements in the image capturing optical assembly is eight;
- at least one of the eight lens elements has an Abbe number smaller than 23.0;
- a focal length of the image capturing optical assembly is f, an entrance pupil diameter of the image capturing optical assembly is EPI, and the following condition is satisfied:
- 1.0<f/EPD<1.70.
Dependencies are inferred from the claim text.