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.
Claims46
An imaging lens assembly comprising, in order from an object side to an image side:
- a first lens element having negative refractive power in a paraxial region thereof;
- a second lens element having positive refractive power in a paraxial region thereof;
- a third lens element with positive refractive power in a paraxial region thereof having a convex object-side surface;
- a fourth lens element having positive refractive power in a paraxial region thereof;
- a fifth lens element having positive refractive power in a paraxial region thereof;
- and
- a sixth lens element having negative refractive power in a paraxial region thereof;
- wherein the imaging lens assembly is a fixed focal length lens assembly having a total of six lens elements;
- a ratio of a focal length of the imaging lens assembly to a focal length of the first lens element is P1, a ratio of the focal length of the imaging lens assembly to a focal length of the second lens element is P2, a ratio of the focal length of the imaging lens assembly to a focal length of the fifth lens element is P5, a ratio of the focal length of the imaging lens assembly to a focal length of the sixth lens element is P6, and the following condition is satisfied:
- (|P1|+|P2|)/(|P5|+|P6|)<0.60.
An imaging lens assembly comprising, in order from an object side to an image side:
- a first lens element having negative refractive power in a paraxial region thereof;
- a second lens element having positive refractive power in a paraxial region thereof;
- a third lens element with positive refractive power in a paraxial region thereof having a concave image-side surface;
- a fourth lens element having positive refractive power in a paraxial region thereof;
- a fifth lens element with positive refractive power in a paraxial region thereof, the fifth lens element having a convex object-side surface and a convex image-side surface;
- and
- a sixth lens element with negative refractive power having a concave image-side surface;
- wherein the imaging lens assembly is a fixed focal length lens assembly having a total of six lens elements;
- a focal length of the imaging lens assembly is f, a curvature radius of the image-side surface of the sixth lens element is R12, and the following condition is satisfied:
- 0<f/R12<3.0.
An imaging lens assembly comprising, in order from an object side to an image side:
- a first lens element having negative refractive power in a paraxial region thereof;
- a second lens element having positive refractive power in a paraxial region thereof;
- a third lens element having positive refractive power in a paraxial region thereof;
- a fourth lens element having positive refractive power in a paraxial region thereof;
- a fifth lens element having positive refractive power in a paraxial region thereof;
- and
- a sixth lens element having negative refractive power in a paraxial region thereof;
- wherein the imaging lens assembly is a fixed focal length lens assembly having a total of six lens elements, the imaging lens assembly further comprises an aperture stop disposed between the first lens element and the sixth lens element, and the lens elements of the imaging lens assembly comprise a front lens group located between the aperture stop and an imaged object and a rear lens group located between the aperture stop and an image surface;
- wherein a ratio of a focal length of the imaging lens assembly to a focal length of the first lens element is P1, a ratio of the focal length of the imaging lens assembly to a focal length of the second lens element is P2, a ratio of the focal length of the imaging lens assembly to a focal length of the fifth lens element is P5, a ratio of the focal length of the imaging lens assembly to a focal length of the sixth lens element is P6, a focal length of the front lens group is ff, a focal length of the rear lens group is fr, and the following conditions are satisfied:
- (|P1|+|P2|)/(|P5|+|P6|)<0.60;
- and
- −0.50<fr/ff<0.50.
Dependencies are inferred from the claim text.