Patent ID: 11231565

Abstract:
An optical lens, in order from an object side to an image-forming side, includes: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, a seventh lens and an eighth lens, respectively having negative, negative, positive, positive, negative, positive, positive and negative refractive power. The curvature radius of the object-side surface of the first lens is greater than the curvature radius of the image-side surface of the first lens; the image-side surface of the eighth lens has an effective radius r and a vertex point, H is a distance between the vertex point and the optical axis, the image-side surface of the eighth lens intersects with the optical axis at an intersection point, d is a distance between a projected position of the vertex point on the optical axis and the intersection point, and |r/d|≤30 and/or |r/H|≤2.