US 12,510,736 B2 · Imaging lens system

Abstract

An imaging lens system is provided. The imaging lens system includes a first lens having refractive power, a second lens having refractive power, a third lens having refractive power, a fourth lens having refractive power and a concave image side surface, a fifth lens having refractive power and a concave object side surface, a sixth lens having refractive power, a seventh lens having refractive power, and an eighth lens having refractive power. The first to eighth lenses of the imaging system are sequentially arranged from an object side to an imaging side, and, in the imaging lens system, TTL/2 ImgHT<0.6, where TTL is a distance from an object side surface of the first lens to an imaging plane, and 2 ImgHT is a diagonal length of the imaging plane.

Claims15

Dependent claims

An imaging lens system, comprising:

a first lens having positive refractive power, a second lens having negative refractive power, a third lens, a fourth lens having positive refractive power and a concave image side surface, a fifth lens having negative refractive power and a concave object side surface, a sixth lens, a seventh lens, and an eighth lens, sequentially arranged from an object side toward an imaging plane,
wherein 0.50<TTL/2 ImgHT<0.60,
where TTL is a distance from an object side surface of the first lens to the imaging plane, and 2 ImgHT is a diagonal length of the imaging plane.

Dependencies are inferred from the claim text.

Imaging lens system

Life of this patent

Imaging lens system

Life of this patent

Abstract

Claims15