Patent ID: 11960145
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 0:
1. An optical imaging system comprising:
a first lens having positive refractive power, a convex object-side surface, and a concave image-side surface;
a second lens having negative refractive power, a convex object-side surface, and a concave image-side surface;
a third lens having positive refractive power;
a fourth lens having negative refractive power, a convex object-side surface, and a concave image-side surface;
a fifth lens having refractive power;
a sixth lens having refractive power; and
a seventh lens having refractive power,
wherein the first to seventh lenses are sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system,
wherein the optical imaging system has a total of seven lenses, and
wherein the optical imaging system satisfies 0.6<TTL/(2*Img HT)<0.9, where TTL is a distance along the optical axis from the object-side surface of the first lens to the imaging plane of the image sensor, and Img HT is one-half of a diagonal length of the imaging plane of the image sensor.