Patent ID: 11899177
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. An optical imaging system, comprising:
a first lens having a refractive power, a second lens having a refractive power, a third lens having a refractive power, a fourth lens having a concave object-side surface in a paraxial region, and a fifth lens having a refractive power, sequentially disposed from an object side to an imaging plane,
wherein a thickness along an optical axis of the second lens is greater than a thickness along an optical axis of the third lens,
wherein a radius of curvature of an object-side surface of the second lens is greater than a radius of curvature of an image-side surface of the first lens and a radius of curvature of an image-side surface of the third lens,
wherein a radius of curvature of an image-side surface of the fourth lens is greater than a radius of curvature of an object-side surface of the fourth lens, and
wherein a radius of curvature of an image-side surface of the fifth lens is less than the radius of curvature of the image-side surface of the first lens or the radius of curvature of the object-side surface of the fourth lens.