US 12,228,793 B2
Optical imaging system
Tae Youn Lee, 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 Jun. 27, 2023, as Appl. No. 18/342,138.
Application 18/342,138 is a continuation of application No. 17/374,415, filed on Jul. 13, 2021, granted, now 11,726,299.
Application 17/374,415 is a continuation of application No. 16/375,058, filed on Apr. 4, 2019, granted, now 11,092,775, issued on Aug. 17, 2021.
Application 16/375,058 is a continuation of application No. 15/468,388, filed on Mar. 24, 2017, granted, now 10,281,682, issued on May 7, 2019.
Claims priority of application No. 10-2016-0174946 (KR), filed on Dec. 20, 2016.
Prior Publication US 2023/0341656 A1, Oct. 26, 2023
Int. Cl. G02B 9/62 (2006.01); G02B 9/04 (2006.01); G02B 9/60 (2006.01); G02B 13/00 (2006.01); H04M 1/02 (2006.01)
CPC G02B 9/62 (2013.01) [G02B 9/04 (2013.01); G02B 9/60 (2013.01); G02B 13/0045 (2013.01); H04M 1/0264 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An optical imaging system, comprising:
a first lens comprising positive refractive power;
a second lens comprising a refractive power;
a third lens comprising a refractive power;
a fourth lens comprising positive refractive power;
a fifth lens comprising a refractive power; and
a sixth lens comprising positive refractive power,
wherein the first to the sixth lenses are sequentially disposed from an object side toward an imaging plane,
wherein a radius of curvature of an image-side surface of the fifth lens is greater than a radius of curvature of an object-side surface of the second lens,
wherein 0.7<TL/f<1.0, where TL is a distance from an object-side surface of the first lens to the imaging plane and f is an overall focal length of the optical imaging system, and
wherein −3.5<f/f3<−0.4, where f3 is a focal length of the third lens.