Patent ID: 11885941
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 7:
8. An optical imaging system, comprising:
a first lens comprising negative refractive power;
a second lens comprising positive refractive power;
a third lens comprising a convex object-side surface;
a fourth lens comprising a refractive power;
a fifth lens comprising a convex image-side surface; and
a sixth lens comprising a concave image-sides surface,
wherein the first to sixth lenses are sequentially disposed in an optical-axis direction,
wherein an absolute value of a radius of curvature of the object-side surface of the third lens is greater than an absolute value of a radius of curvature of an image-side surface of the second lens,
wherein a distance from an image-side surface of the first lens to an object-side surface of the second lens is greater than a distance from an image-side surface of the fourth lens to the object-side surface of the fifth lens, and
wherein a thickness along an optical axis of the fourth lens is greater than a thickness along an optical axis of the second lens.