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US 10,948,695 B2Granted
Photographing optical lens assembly, imaging apparatus and electronic device
AssigneeLargan Precision Co., Ltd.
InventorsKuan-Ting Yeh, Hsin-Hsuan Huang
Life of this patent
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Abstract
A photographing optical lens assembly includes 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 includes an object-side surface facing towards the object side and an image-side surface facing towards the image side. The image-side surface of the seventh lens element is concave in a paraxial region thereof and includes at least one inflection point in an off-axis region thereof.
Claims29
A photographing optical 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;
- wherein each of the seven lens elements comprises an object-side surface facing towards the object side and an image-side surface facing towards the image side;
- wherein the image-side surface of the seventh lens element is concave in a paraxial region thereof, and the image-side surface of the seventh lens element comprises at least one inflection point in an off-axis region thereof;
- wherein a total number of the lens elements in the photographing optical lens assembly is seven, a focal length of the photographing optical 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 Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, an Abbe number of the sixth lens element is V6, a minimum among Abbe numbers of all lens elements of the photographing optical lens assembly is Vmin, a curvature radius of the object-side surface of the second lens element is R3, a curvature radius of the image-side surface of the second lens element is R4, a curvature radius of the object-side surface of the fifth lens element is R9, an axial distance between the image-side surface of the seventh lens element and an image surface is BL, 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:
- |f/f4|+|f/f5|+|f/f6|<0.80;
- 30.0<V4+V5+V6<90.0;
- 10.0<Vmin<22.0;
- −3.50<(R3−R4)/(R3+R4);
- −1.50<f/R9<1.20;
- and
- 0.05<BL/TD<0.30.
8 more elements
A photographing optical 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;
- wherein each of the seven lens elements comprises an object-side surface facing towards the object side and an image-side surface facing towards the image side;
- wherein the image-side surface of the seventh lens element is concave in a paraxial region thereof, and the image-side surface of the seventh lens element comprises at least one inflection point in an off-axis region thereof;
- wherein a total number of the lens elements in the photographing optical lens assembly is seven, a focal length of the photographing optical 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 Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, an Abbe number of the sixth lens element is V6, a curvature radius of the object-side surface of the third lens element is R5, a curvature radius of the image-side surface of the third lens element is R6, a curvature radius of the object-side surface of the fifth lens element is R9, and the following conditions are satisfied:
- |f/f4|+|f/f5|+|f/f6|<1.0;
- 30.0<V4+V5+V6<85.0;
- (R5+R6)/(R5−R6)<0.80;
- and
- −1.50<f/R9<1.20.
6 more elements
A photographing optical 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;
- wherein each of the seven lens elements comprises an object-side surface facing towards the object side and an image-side surface facing towards the image side;
- wherein the object-side surface of the seventh lens element is convex in a paraxial region thereof, the image-side surface of the seventh lens element is concave in a paraxial region thereof, and the image-side surface of the seventh lens element comprises at least one inflection point in an off-axis region thereof;
- wherein a total number of the lens elements in the photographing optical lens assembly is seven, a focal length of the photographing optical lens assembly is f, a focal length of the third lens element is f3, 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 Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, an Abbe number of the sixth lens element is V6, a curvature radius of the object-side surface of the fifth lens element is R9, an axial distance between the image-side surface of the seventh lens element and an image surface is BL, 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:
- |f/f4|+|f/f5|+|f/f6|<0.80;
- 30.0<V4+V5+V6<90.0;
- −0.60<f/f3<2.50,
- −1.50<f/R9<1.20;
- and
- 0.05<BL/TD<0.30.
7 more elements
Dependencies are inferred from the claim text.