Optical imaging lens assembly, image capturing unit and electronic device
AssigneeLargan Precision Co., Ltd.
InventorWei-Yu Chen
Life of this patent
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Abstract
An optical imaging lens assembly includes seven 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, a sixth lens element and a seventh lens element. The seventh lens element has an image-side surface being concave in a paraxial region thereof. At least one of an object-side surface and the image-side surface of the seventh lens element has at least one critical point in an off-axis region thereof. The object-side surface and the image-side surface of the seventh lens element are both aspheric.
Claims26
An optical imaging 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 an axial distance between an object-side surface of the first lens element and an image-side surface of the seventh lens element is Td, a maximum effective radius of the image-side surface of the seventh lens element is Y72, a chief ray with an incident angle of 55 degrees relative to an optical axis is CR, an intersection point between CR and the image-side surface of the seventh lens element is P, a vertical distance from the optical axis to P is Yc_55, a maximum image height of the optical imaging lens assembly is ImgH, and the following conditions are satisfied:
- Td/|Y72|<1.80;
- and
- 0.30<|Yc_55|/ImgH<0.95.
An optical imaging 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 the first lens element has an object-side surface being concave in a paraxial region thereof, the third lens element has an image-side surface being convex in a paraxial region thereof, the sixth lens element has an image-side surface being concave in a paraxial region thereof, the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof, and an object-side surface and the image-side surface of the sixth lens element are both aspheric;
- wherein an axial distance between the object-side surface of the first lens element and an image-side surface of the seventh lens element is Td, a maximum effective radius of the image-side surface of the seventh lens element is Y72, and the following condition is satisfied:
- Td/|Y72|<1.80.
Dependencies are inferred from the claim text.