US 11,927,724 B2
Optical imaging system
Yong Joo Jo, Suwon-si (KR); and Young Suk Kang, 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 Jul. 6, 2021, as Appl. No. 17/367,761.
Application 17/367,761 is a continuation of application No. 16/287,316, filed on Feb. 27, 2019, granted, now 11,092,781.
Claims priority of application No. 10-2018-0034965 (KR), filed on Mar. 27, 2018; and application No. 10-2018-0091268 (KR), filed on Aug. 6, 2018.
Prior Publication US 2021/0333511 A1, Oct. 28, 2021
Int. Cl. G02B 13/00 (2006.01); G02B 9/34 (2006.01); H04N 23/57 (2023.01); H04N 25/53 (2023.01)
CPC G02B 13/004 (2013.01) [G02B 9/34 (2013.01); H04N 23/57 (2023.01); H04N 25/53 (2023.01)] 11 Claims
OG exemplary drawing
 
1. An optical imaging system comprising, in order from an object side to an image side:
a first lens with positive refractive power;
a second lens with positive refractive power;
a third lens with positive refractive power; and
a fourth lens with negative refractive power,
wherein the optical imaging system has a total of four lenses, and
wherein the optical imaging system satisfies the conditional expression:
0.8<F No.<1.35.