US 11,886,039 B2 · Optical imaging lens group

Abstract

The present disclosure discloses an optical imaging lens group including, sequentially 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 and a sixth lens, each of which has refractive power. An object-side surface of the first lens is a convex surface, and an image-side surface of the first lens is a concave surface; an image-side surface of the second lens is a concave surface; and an object-side surface of sixth lens is a concave surface. A distance TTL along the optical axis from an object-side surface of the first lens to an imaging plane of the optical imaging lens group and half of a diagonal length ImgH of an effective pixel area on the imaging plane of the optical imaging lens group satisfy TTL/ImgH≤1.23.

Claims20

Dependent claims

An optical imaging lens group, sequentially from an object side to an image side along an optical axis, comprising:

a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, each of which has refractive power,
wherein,
the first lens has positive refractive power, an object-side surface of the first lens is a convex surface, and an image-side surface of the first lens is a concave surface;
the second lens has negative refractive power, and an image-side surface of the second lens is a concave surface;
the fifth lens has positive refractive power;
the sixth lens has negative refractive power, and an object-side surface of sixth lens is a concave surface;
and
1.18≤TTL/ImgH≤1.22, where TTL is a distance along the optical axis from the object-side surface of the first lens to an imaging plane of the optical imaging lens group, and ImgH is half of a diagonal length of an effective pixel area on the imaging plane of the optical imaging lens group.

5 more elements

An optical imaging lens group, sequentially from an object side to an image side along an optical axis, comprising:

a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens, each of which has refractive power,
wherein,
the first lens has positive refractive power, an object-side surface of the first lens is a convex surface, and an image-side surface of the first lens is a concave surface;
the second lens has negative refractive power, and an image-side surface of the second lens is a concave surface;
the fifth lens has positive refractive power;
the sixth lens has negative refractive power, and an object-side surface of sixth lens is a concave surface;
and
2.72≤ImgH/(CT1+CT2+CT3+CT4)<3.0,
where ImgH is half of a diagonal length of an effective pixel area on an imaging plane of the optical imaging lens group,
CT1 is a center thickness of the first lens along the optical axis,
CT2 is a center thickness of the second lens along the optical axis,
CT3 is a center thickness of the third lens along the optical axis, and
CT4 is a center thickness of the fourth lens along the optical axis.

10 more elements

Dependencies are inferred from the claim text.

Optical imaging lens group

Life of this patent

Optical imaging lens group

Life of this patent

Abstract

Claims20