Patent ID: 11947089
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical imaging system comprising:
a first lens having negative refractive power;
a second lens having positive refractive power;
a third lens having a refractive power;
a fourth lens having a refractive power;
a fifth lens having a refractive power; and
a sixth lens having a refractive power and an image-side surface having an inflection point;
wherein the first to sixth lenses are sequentially disposed in numerical order from an object side of the optical imaging system toward an imaging plane of the optical imaging system,
wherein a radius of curvature of an object-side surface of the second lens is less than a radius of curvature of an image-side surface of the second lens and an absolute value of a radius of curvature of an object-side surface of the fifth lens, and
wherein TL/(2Y)≤1.01,
where TL is a distance from an object-side surface of the first lens to the imaging plane and 2Y is a diagonal length of the imaging plane.