US 12,345,859 B2
Optical imaging system
Jae Hyun Baik, Suwon-si (KR); Min Hyuk Im, Suwon-si (KR); Yong Joo Jo, Suwon-si (KR); and Ga Young An, Suwon-si (KR)
Assigned to Samsung Electro-Mechanics Co., Ltd., Suwon-si (KR)
Filed by Samsung Electro-Mechanics Co., Ltd., Suwon-si (KR)
Filed on Mar. 22, 2023, as Appl. No. 18/187,874.
Application 18/187,874 is a continuation of application No. 17/088,675, filed on Nov. 4, 2020, granted, now 11,789,239.
Application 17/088,675 is a continuation of application No. 16/424,774, filed on May 29, 2019, granted, now 11,353,686, issued on Jun. 7, 2022.
Claims priority of application No. 10-2018-0061393 (KR), filed on May 29, 2018; and application No. 10-2018-0106185 (KR), filed on Sep. 5, 2018.
Prior Publication US 2023/0228981 A1, Jul. 20, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 13/00 (2006.01); G02B 9/64 (2006.01); H04N 23/55 (2023.01)
CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); H04N 23/55 (2023.01)] 18 Claims
OG exemplary drawing
 
1. An optical imaging system comprising:
a first lens comprising positive refractive power and a concave image-side surface;
a second lens comprising negative refractive power;
a third lens comprising a refractive power;
a fourth lens comprising a concave image-side surface;
a fifth lens comprising a refractive power;
a sixth lens comprising a refractive power; and
a seventh lens comprising a refractive power,
wherein the first to seventh lenses are disposed in order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane,
wherein a radius of curvature of an object-side surface of the fourth lens is greater than a radius of curvature of an object-side surface of the second lens,
wherein a radius of curvature of the object-side surface of the second lens is greater than a radius of curvature of an object-side surface of the sixth lens, and
wherein 0.05<R1/R6<0.9, where R1 is a radius of curvature of an object-side surface of the first lens and R6 is a radius of curvature of an image-side surface of the third lens.