US 2026/0186271 A1Published application

Camera optical lens

AssigneeChangzhou AAC Raytech Optronics Co., Ltd.

InventorsYongqiang Yang, Shunda Zhou

Life of this patent

Estimating the term…

Loading patent…

Abstract

Provided is a camera optical lens, including five lenses and a prism. Focal length and total track length of the camera optical lens are f and TTL, focal length of the first lens is f1, combined focal length of the first and second lenses is f12, combined focal length of the second, third and fourth lenses is f234, central curvature radii of the first lens at the object side and image side surfaces are R1 and R2, on-axis thickness of the first lens and the third lens are d1 and d5, and on-axis distance from the object side surface of the first lens to the image side surface of the fourth lens is Td, distance between maximum effective aperture of object and image side surfaces of the third lens is ET3, following relational expressions are satisfied: 0.30≤f1/f≤0.70; −1.40≤f12/f234≤−0.426; −3.00≤R1/R2≤−1.00; 0.16≤Td/TTL≤0.21; and 0.05≤d5/ET3≤0.66. The camera optical lens has excellent optical characteristics.

Claims10

Dependent claims

A camera optical lens, comprising from an object side to an image side:

a first lens having a positive refractive power;
a second lens having a negative refractive power;
a third lens having a negative refractive power;
a fourth lens having a positive refractive power;
and
a prism having a reflective power,
wherein the prism comprises along an optical axis:
a first transmissive surface, a first reflective surface, a second reflective surface, a third reflective surface and a second transmissive surface, wherein the first transmissive surface, the second reflective surface and the second transmissive surface are parallel to each other, and
wherein a focal length of the camera optical lens is f, a focal length of the first lens is f1, a combined focal length of the first lens and the second lens is f12, a combined focal length of the second lens, the third lens and the fourth lens is f234, a central curvature radius of an object side surface of the first lens is R1, a central curvature radius of an image side surface of the first lens is R2, an on-axis thickness of the third lens is d5, a distance from a maximum effective aperture of an object side surface of the third lens to a maximum effective aperture of an image side surface of the third lens in a direction parallel to the optical axis is ET3, an on-axis distance from the object side surface of the first lens to an image side surface of the fourth lens is Td, a total track length of the camera optical lens is TTL, and following relational expressions are satisfied:
0.3
≤
f
⁢
1
/
f
≤
0.7
;
-
1.4
≤
f
⁢
12
/
f
⁢
2
⁢
34
≤
-
0.426
;
-
3.
≤
R
⁢
1
/
R
⁢
2
≤
-
1.
;
0.16
≤
Td
/
TTL
≤
0.21
;
and
0.05
≤
d
⁢
5
/
ET
⁢
3
≤
0
.
6
⁢
6
.

71 more elements

Dependencies are inferred from the claim text.