CPC G02B 9/64 (2013.01) [G02B 13/0045 (2013.01); H04N 23/55 (2023.01)] | 40 Claims |
1. An imaging optical lens assembly comprising seven lens elements, and the seven lens elements being, in order from an object side to an image side along an optical path, 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 there are a total of seven lens elements in the imaging optical lens assembly, the third lens element with positive refractive power has an image-side surface being convex in a paraxial region thereof, the fourth lens element has negative refractive power, the fifth lens element has an object-side surface being concave in a paraxial region thereof, the sixth lens element with negative refractive power has an object-side surface being convex in a paraxial region thereof and an image-side surface being concave in a paraxial region thereof, and the image-side surface of the sixth lens element has at least one critical point in an off-axis region thereof;
wherein a focal length of the imaging optical lens assembly is f, 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 object-side surface of the first lens element is R1, a curvature radius of the object-side surface of the sixth lens element is R11, a curvature radius of the image-side surface of the sixth lens element is R12, and the following conditions are satisfied:
−0.60<f/R1<1.10;
f3/f2<1.60; and
(|R11|+|R12|)/f≤2.50.
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