Camera optical lens
AssigneeChangzhou Raytech Optronics Co., Ltd.
InventorDong Yu
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to optical lens, and provides a camera optical lens including from an object side to an image side in sequence: a first lens having a positive refractive power, 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 the following conditions: 0.95≤f/TTL; −4.00≤f2/f≤−1.90; and 0.25≤(R15+R16)/(R15−R16)≤0.90. The camera optical lens can achieve good optical performance while meeting design requirements for a long focal length and ultra-thinness.
Claims9
A camera optical lens comprising from an object side to an image side in sequence:
- 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 the following conditions:
- 0.95≤f/TTL;
- −4.00≤f2/f≤−1.90;
- 1.50≤d10/d11≤3.00;
- and
- 0.25≤(R15+R16/(R15−R16)0.90;
- where
- TTL denotes a total optical length from an object-side surface of the first lens to an image surface of the camera optical lens along an optical axis;
- f denotes a focal length of the camera optical lens;
- f2 denotes a focal length of the second lens;
- d10 denotes on-axis distance from the image-side surface of the fifth lens to the object-side surface of the sixth lens,
- d11 denotes an on-axis thickness of the sixth lens,
- R15 denotes a central curvature radius of an object-side surface of the eighth lens;
- and
- R16 denotes a central curvature radius of an image-side surface of the eighth lens.
Dependencies are inferred from the claim text.