Camera optical lens including eight lenses of +−+−−−+− refractive powers
AssigneeAAC Optics Solutions Pte. Ltd.
InventorKang Wang
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to the field of optical lenses and provides a camera optical lens. The 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. The camera optical lens satisfies following conditions: 5.00≤f1/f≤6.50; f2≤0; and 1.55≤n6≤1.70, where f denotes a focal length of the camera optical lens; f1 denotes a focal length of the first lens; f2 denotes a focal length of the second lens; and n6 denotes a refractive index of the sixth lens. The present disclosure can achieve ultra-thin, wide-angle lenses having a big aperture.
Claims9
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 the camera optical lens satisfies following conditions:
- −18.00≤(R1+R2)/(R1-R2)≤−14.00
- 5.00≤f1/f≤6.50;
- f2≤0;
- and
- 1.55≤n6≤1.70,
- Where
- R1 denotes a curvature radius of an object side surface of the first lens;
- R2 denotes a curvature radius of an image side surface of the first lens;
- f denotes a focal length of the camera optical lens;
- f1 denotes a focal length of the first lens;
- f2 denotes a focal length of the second lens;
- and
- n6 denotes a refractive index of the sixth lens.
Dependencies are inferred from the claim text.