US 12,248,125 B2
Optical system
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 Dec. 28, 2023, as Appl. No. 18/398,785.
Application 18/398,785 is a continuation of application No. 17/568,140, filed on Jan. 4, 2022, granted, now 11,892,607.
Application 17/568,140 is a continuation of application No. 16/435,730, filed on Jun. 10, 2019, granted, now 11,249,284, issued on Feb. 15, 2022.
Application 16/435,730 is a continuation of application No. 14/670,103, filed on Mar. 26, 2015, granted, now 10,365,455, issued on Jul. 30, 2019.
Claims priority of application No. 10-2014-0142082 (KR), filed on Oct. 20, 2014.
Prior Publication US 2024/0134161 A1, Apr. 25, 2024
Prior Publication US 2024/0231050 A9, Jul. 11, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 3/00 (2006.01); G02B 9/64 (2006.01); G02B 13/00 (2006.01); G02B 13/04 (2006.01); H04N 23/54 (2023.01)
CPC G02B 13/0045 (2013.01) [H04N 23/54 (2023.01)] 18 Claims
OG exemplary drawing
 
1. An optical system comprising:
a first lens having a positive refractive power and a convex object-side surface in a paraxial region thereof;
a second lens having a negative refractive power, a convex object-side surface in a paraxial region thereof, and a concave image-side surface in a paraxial region thereof;
a third lens having a positive refractive power;
a fourth lens having a refractive power;
a fifth lens having a refractive power; and
a sixth lens having a refractive power,
wherein the first to sixth lenses are sequentially disposed from an object side,
wherein the optical system has a total of six lenses,
wherein 0.1<|f/f3|+|f/f4|<0.4 is satisfied, where f is an overall focal length of the optical system, and f3 is a focal length of the third lens, and f4 is a focal length of the fourth lens.