US 12,092,798 B2
Optical imaging system
Jin Hwa Jung, Suwon-si (KR); and Yong Joo Jo, 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. 20, 2023, as Appl. No. 18/186,334.
Application 18/186,334 is a continuation of application No. 17/133,820, filed on Dec. 24, 2020, granted, now 11,635,594.
Application 17/133,820 is a continuation of application No. 16/443,996, filed on Jun. 18, 2019, granted, now 10,908,395, issued on Feb. 2, 2021.
Application 16/443,996 is a continuation of application No. 15/593,391, filed on May 12, 2017, granted, now 10,365,458, issued on Jul. 30, 2019.
Claims priority of application No. 10-2016-0181232 (KR), filed on Dec. 28, 2016.
Prior Publication US 2023/0228974 A1, Jul. 20, 2023
Int. Cl. G02B 13/00 (2006.01); G02B 9/64 (2006.01); G02B 13/18 (2006.01); G02B 5/20 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 9/64 (2013.01); G02B 13/18 (2013.01); G02B 5/208 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An optical imaging system comprising:
a first lens having a positive refractive power;
a second lens having a negative refractive power, a convex object-side surface and a concave image-side surface;
a third lens having a refractive power, a convex object-side surface and a concave image-side surface;
a fourth lens having a positive refractive power;
a fifth lens having a refractive power;
a sixth lens having a refractive power;
a seventh lens having a refractive power and a concave image-side surface; and
an eighth lens having a refractive power,
wherein the first to eighth lenses are sequentially disposed from an object side to an imaging plane,
wherein the optical imaging system has a total of eight lenses, and
wherein f/ImgH<2.9, where ImgH represents a half of a diagonal length of the imaging plane, and f represents an overall focal length of the optical imaging system.