US 11,237,366 B2 · Optical imaging lens

Abstract

The application discloses an optical imaging lens, and the optical imaging lens sequentially comprises the following components from an object side to an image side along an optical axis: a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens and a seventh lens, wherein the first lens has a refractive power; the second lens has a refractive power; the third lens has a refractive power, the object side surface of the third lens is a convex surface, and the image side surface of the third lens is a convex surface; the fourth lens has a refractive power, the object side surface of the fourth lens is a convex surface, and the image side surface of the fourth lens is a concave surface; the fifth lens has a refractive power; the sixth lens has a positive refractive power; and the seventh lens has a refractive power, and the object side surface of the seventh lens is a convex surface. Wherein, the total effective focal length f of the optical imaging lens and the entrance pupil diameter EPD of the optical imaging lens satisfy the following relation: f/EPD<1.7; and the total effective focal length f of the optical imaging lens and the maximum semi field of view Semi-FOV of the optical imaging lens meet the following relation: 4 mm<tan(Semi-FOV)×f<5 mm.

Claims9

Dependent claims

An optical imaging lens is characterized by sequentially comprising the following components from an object side to an image side along an optical axis:

a first lens having a refractive power;
a second lens having a refractive power;
a third lens having a refractive power, an object side surface of which is a convex surface, and an image side surface of which is a convex surface;
a fourth lens having a refractive power, an object side surface of which is a convex surface, and an image side surface of which is a concave surface;
a fifth lens having a refractive power;
a sixth lens having a positive refractive power;
a seventh lens having a refractive power, an object side surface of which is a convex surface;
wherein, a total effective focal length f of the optical imaging lens and an entrance pupil diameter EPD of the optical imaging lens satisfy the following relation:
f/EPD<1.7;
and
the total effective focal length f of the optical imaging lens and a maximum semi field of view Semi-FOV of the optical imaging lens meet the following relation:
4 mm<tan(Semi-FOV)×f<5 mm,
wherein a spacing distance T12 between the first lens and the second lens on the optical axis, a spacing distance T23 between the second lens and the third lens on the optical axis, a spacing distance T34 between the third lens and the fourth lens on the optical axis and a center thickness CT3 of the third lens on the optical axis satisfy the following relation:
0<(T12+T23+T34)/CT3≤0.33.

11 more elements

Dependencies are inferred from the claim text.

Optical imaging lens

Life of this patent

Optical imaging lens

Life of this patent

Abstract

Claims9