Camera optical lens
AssigneeAAC Optics (Changzhou) Co., Ltd.
InventorWen Sun
Life of this patent
Estimating the term…
Abstract
A camera optical lens is provided. The camera optical lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens that are sequentially arranged from an object side to an image side. The second lens has a positive refractive power. At least one of the first lens to the seventh lens includes a free-form surface. The camera optical lens satisfies: 1.00≤f2/f≤4.00 and R1≤0, where f denotes a focal length of the camera optical lens, f2 denotes a focal length of the second lens, and R1 denotes a central curvature radius of an object-side surface of the first lens. The camera optical lens can achieve good optical performance and meet the requirement of being ultra-thin and having a wide-angle and a large apertures.
Claims10
A camera optical lens, comprising, from an object side to an image side:
- a first lens;
- a second lens having a positive refractive power;
- a third lens;
- a fourth lens;
- a fifth lens;
- a sixth lens;
- and
- a seventh lens,
- wherein at least one of the first lens, the second lens, the third lens, the fourth lens, the fifth lens, the sixth lens, or the seventh lens comprises a free-form surface, and
- wherein the camera optical lens satisfies:
- 1.00≤f2/f≤4.00, and R1≤0, where f denotes a focal length of the camera optical lens, f2 denotes a focal length of the second lens, and R1 denotes a central curvature radius of an object-side surface of the first lens.
Dependencies are inferred from the claim text.