US 11,960,145 B2
Optical imaging system
Phil Ho Jung, Suwon-si (KR); In Gun Kim, 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. 24, 2023, as Appl. No. 18/189,685.
Application 18/189,685 is a continuation of application No. 17/099,021, filed on Nov. 16, 2020, granted, now 11,644,643.
Application 17/099,021 is a continuation of application No. 16/424,535, filed on May 29, 2019, granted, now 11,002,943, issued on May 11, 2021.
Claims priority of application No. 10-2018-0061409 (KR), filed on May 29, 2018; and application No. 10-2018-0106170 (KR), filed on Sep. 5, 2018.
Prior Publication US 2023/0236390 A1, Jul. 27, 2023
Int. Cl. G02B 9/64 (2006.01); G02B 27/00 (2006.01); H04N 23/55 (2023.01)
CPC G02B 9/64 (2013.01) [G02B 27/0025 (2013.01); H04N 23/55 (2023.01)] 16 Claims
OG exemplary drawing
 
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.