Photographing optical lens assembly, image capturing unit and electronic device
AssigneeLargan Precision Co., Ltd.
InventorHsin-Hsuan Huang
Life of this patent
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Abstract
A photographing optical lens assembly includes six 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 and a sixth lens element. The second lens element has positive refractive power. The third lens element has negative refractive power. The sixth lens element with negative refractive power has an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one inflection point.
Claims32
A photographing optical lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
- a first lens element;
- a second lens element having positive refractive power;
- a third lens element having negative refractive power;
- a fourth lens element having an object-side surface being convex in a paraxial region thereof;
- a fifth lens element;
- and
- a sixth 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 sixth lens element has at least one inflection point;
- wherein a focal length of the photographing optical lens assembly is f, a focal length of the first lens element is f1, a focal length of the fourth lens element is f4, a focal length of the fifth lens element is f5, a curvature radius of an image-side surface of the fourth lens element is R8, a curvature radius of an image-side surface of the fifth lens element is R10, an Abbe number of the third lens elements is V3, an Abbe number of the fourth lens elements is V4, an Abbe number of the fifth lens element is V5, and the following conditions are satisfied:
- 0≤(f/R8)+(f/R10)<1.0;
- |f/f4|+|f/f5|<0.80;
- |f/f1|+|f/f4|<0.50;
- and
- 15.0<V3+V4+V5<96.0.
A photographing optical lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
- a first lens element;
- a second lens element having positive refractive power;
- a third lens element;
- a fourth lens element;
- a fifth lens element;
- and
- a sixth lens element having an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one inflection point;
- wherein a focal length of the photographing optical lens assembly is f, a focal length of the first lens element is f1, a focal length of the second lens element is f2, a focal length of the third lens element is f3, a curvature radius of an image-side surface of the fourth lens element is R8, a curvature radius of an object-side surface of the fifth lens element is R9, a curvature radius of an image-side surface of the fifth lens element is R10, a curvature radius of an object-side surface of the sixth lens element is R11, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, a refractive index of the fourth lens element is N4, and the following conditions are satisfied:
- −0.40<(f/R8)+(f/R10)<5.0;
- 20.0<V3+V4+V5<65.0;
- −3.0<R11/R9<0.75;
- V4/N4<12.5;
- and
- −0.20<(f/f2)−(f/f1)+(f/f3)<3.50.
A photographing optical lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
- a first lens element;
- a second lens element having positive refractive power;
- a third lens element having negative refractive power;
- a fourth lens element;
- a fifth lens element;
- and
- a sixth lens element having an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one inflection point;
- wherein a focal length of the photographing optical lens assembly is f, a focal length of the first lens element is f1, a focal length of the second lens element is f2, a focal length of the third lens element is f3, a focal length of the fourth lens element is f4, a curvature radius of an image-side surface of the fourth lens element is R8, a curvature radius of an object-side surface of the fifth lens element is R9, a curvature radius of an image-side surface of the fifth lens element is R10, a curvature radius of an object-side surface of the sixth lens elements is R11, an Abbe number of the third lens element is V3, an Abbe number of the fourth lens element is V4, an Abbe number of the fifth lens element is V5, and the following conditions are satisfied:
- 0≤|f/R8|+|f/R10|<0.50;
- −0.20<(f/f2)−(f/f1)+(f/f3)<3.50;
- 15.0<V3+V4−V5<96.0;
- −0.40<R11/R9<0.35;
- −0.15<(f/R8)+(f/R10)<1.0;
- and
- |f/f1|+|f/f4|<0.50.
A photographing optical lens assembly comprising six lens elements, the six lens elements being, in order from an object side to an image side:
- a first lens element having positive refractive power;
- a second lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof and an image-side surface being convex in a paraxial region thereof;
- a third lens element;
- a fourth lens element;
- a fifth lens element;
- and
- a sixth lens element having an image-side surface being concave in a paraxial region thereof, wherein the image-side surface of the sixth lens element has at least one inflection point;
- wherein a focal length of the photographing optical lens assembly is f, a focal length of the first lens element is f1, a curvature radius of an image-side surface of the first lens element if R2, a curvature radius of the image-side surface of the second lens element is R4, a curvature radius of an object-side surface of the third lens element is R5, a curvature radius of an image-side surface of the third lens element is R6, a curvature radius of an image-side surface of the fourth lens element is R8, a curvature radius of an image-side surface of the fifth lens element is R10, and the following conditions are satisfied:
- 0≤f/R8;
- 0≤f/R10,
- 0<(R5+R6)/(R5−R6);
- 31 1.40<(R2+R4)/(R2−R4)<−0.65;
- and
- −0.30<f/f1<0.35.
Dependencies are inferred from the claim text.