Camera optical lens
AssigneeChangzhou Raytech Optronics Co., Ltd.
InventorWen Sun
Life of this patent
Estimating the term…
Abstract
A camera optical lens includes, from an object side to an image side, 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. At least one of the first lens to the eighth lens has a free-form surface, and the camera optical lens satisfies: −3.50≤f2/f1≤−1.50; and −2.00≤R9/R10≤−0.80, where f1 is a focal length of the first lens, f2 is a focal length of the second lens, R9 is a central curvature radius of an object side surface of the fifth lens, and R10 is a central curvature radius of an image side surface of the fifth lens. The camera optical lens has a large aperture, a wide angle, and ultra-thinness, as well as excellent optical performance.
Claims10
A camera optical lens, comprising, from an object side to an image side, 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,
- wherein at least one of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, the seventh lens, or the eighth lens has a free-form surface, and the camera optical lens satisfies:
- −3.50≤f2/f1≤−1.50;
- and
- −2.00≤R9/R10≤−0.80,
- where f1 denotes a focal length of the first lens, f2 denotes a focal length of the second lens, R9 denotes a central curvature radius of an object side surface of the fifth lens, and R10 denotes a central curvature radius of an image side surface of the fifth lens.
Dependencies are inferred from the claim text.