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US 10,241,295 B2Granted
Imaging lens assembly, image capturing unit and electronic device
AssigneeLargan Precision Co., Ltd.
InventorsLin-Yao Liao, Hsin-Hsuan Huang
Life of this patent
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Abstract
A imaging lens assembly includes, 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 first lens element has negative refractive power. The second lens element has positive refractive power. The third lens element has positive refractive power. The fourth lens element has positive refractive power. The fifth lens element has positive refractive power. The sixth lens element has negative refractive power. The imaging lens assembly has a total of six lens elements.
Claims29
An imaging 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 with negative refractive power having an image-side surface being concave in a paraxial region thereof;
- a second lens element with positive refractive power having an image-side surface being convex in a paraxial region thereof;
- a third lens element 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 fourth lens element;
- a fifth lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof;
- and
- a sixth lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof;
- wherein the imaging lens assembly has a total of six lens elements, an absolute value of a curvature radius of an object-side surface of the sixth lens element is larger than an absolute value of a curvature radius of the image-side surface of the sixth lens element, an axial distance between the first lens element and the second lens element is larger than an axial distance between the third lens element and the fourth lens element, a sum of central thicknesses of the six lens elements of the imaging lens assembly is ΣCT, an axial distance between an object-side surface of the first lens element and the image-side surface of the sixth lens element is Td, an Abbe number of the sixth lens element is V6, and the following conditions are satisfied:
- 0.60<ΣCT/Td<1.0;
- and
- V6<30.
8 more elements
An imaging 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 with negative refractive power having an image-side surface being concave in a paraxial region thereof;
- a second lens element with positive refractive power having an image-side surface being convex in a paraxial region thereof;
- a third lens element 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 fourth lens element with positive refractive power having an image-side surface being convex in a paraxial region thereof;
- a fifth lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof;
- and
- a sixth lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof;
- wherein the imaging lens assembly has a total of six lens elements, an absolute value of a curvature radius of an object-side surface of the sixth lens element is larger than an absolute value of a curvature radius of the image-side surface of the sixth lens element, a sum of central thicknesses of the six lens elements of the imaging lens assembly is ΣCT, an axial distance between an object-side surface of the first lens element and the image-side surface of the sixth lens element is Td, and the following condition is satisfied:
- 0.60<ΣCT/Td<1.0.
6 more elements
An imaging 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 with negative refractive power having an image-side surface being concave in a paraxial region thereof;
- a second lens element with positive refractive power having an image-side surface being convex in a paraxial region thereof;
- a third lens element having an image-side surface being concave in a paraxial region thereof;
- a fourth lens element;
- a fifth lens element with positive refractive power having an object-side surface being convex in a paraxial region thereof, and both the object-side surface and an image-side surface of the fifth lens element being aspheric;
- and
- a sixth lens element with negative refractive power having an image-side surface being concave in a paraxial region thereof, and both an object-side surface and the image-side surface of the sixth lens element being aspheric;
- wherein the imaging lens assembly has a total of six lens elements, an absolute value of a curvature radius of the object-side surface of the fifth lens element is smaller than an absolute value of a curvature radius of the image-side surface of the fifth lens element, and an absolute value of a curvature radius of the object-side surface of the sixth lens element is larger than an absolute value of a curvature radius of the image-side surface of the sixth lens element;
- wherein each of the six lens elements of the imaging lens assembly is a single and non-cemented lens element, a sum of central thicknesses of the six lens elements of the imaging lens assembly is ΣCT, an axial distance between an object-side surface of the first lens element and the image-side surface of the sixth lens element is Td, and the following condition is satisfied:
- 0.60<ΣCT/Td<1.0.
7 more elements
Dependencies are inferred from the claim text.