US 11,726,299 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 Jul. 13, 2021, as Appl. No. 17/374,415.
Application 17/374,415 is a continuation of application No. 16/375,058, filed on Apr. 4, 2019, granted, now 11,092,775.
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 2021/0341708 A1, Nov. 4, 2021
Int. Cl. G02B 9/62 (2006.01); G02B 13/00 (2006.01); G02B 9/60 (2006.01); G02B 9/04 (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)] 16 Claims
OG exemplary drawing
 
1. An optical imaging system, comprising:
a first lens comprising positive refractive power;
a second lens comprising negative refractive power;
a third lens comprising negative refractive power;
a fourth lens comprising a refractive power;
a fifth lens comprising negative refractive power; and
a sixth lens comprising a refractive power and a convex image-side surface,
wherein the first lens to the sixth lens are sequentially disposed from the object side to an imaging plane,
wherein an expression 0.7<TL/f<1.0 is satisfied, where TL represents a distance from an object-side surface of the first lens to the imaging plane and f represents an overall focal length of the optical imaging system, and
wherein a radius of curvature of an object-side surface of the third lens is greater than a radius of curvature of an image-side surface of the sixth lens.