US 2026/0086334 A1 · IMAGING LENS SYSTEM

Abstract

An imaging lens system is provided. The imaging lens system includes a first lens having a concave object-side surface; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having refractive power; a sixth lens having an Abbe number greater than 20 and less than 40; and a seventh lens having refractive power, wherein the first to seventh lenses are sequentially arranged from an object-side to an imaging side, and the imaging lens system satisfies the following conditional expressions: TTL/(ImgHT*2)<0.8, and 100°<FOV, where TTL is a distance from the object-side surface of the first lens to an imaging plane, ImgHT is a height of the imaging plane, and FOV is an angle of view of the imaging lens system.

Claims14

Dependent claims

An imaging lens system, comprising:

a first lens having a concave object-side surface;
a second lens having a refractive power;
a third lens having a refractive power;
a fourth lens having a refractive power;
a fifth lens having a refractive power;
a sixth lens having a refractive power;
and
a seventh lens having a refractive power,
wherein the first to seventh lenses are sequentially arranged from an object-side to an imaging side,
wherein an absolute value of a radius of curvature of an object-side surface of the fifth lens is greater than an absolute value of a radius of curvature of an object-side surface of the first lens,
wherein the first lens has an Abbe number that is greater than 53 and less than 58, and
wherein 0.62<TTL/(ImgHT*2)<0.72, where TTL is a distance from the object-side surface of the first lens to an imaging plane and ImgHT is a height of the imaging plane.

9 more elements

Dependencies are inferred from the claim text.

Imaging lens system

Life of this patent

Imaging lens system

Life of this patent

Abstract

Claims14