US 12,461,344 B2
Optical imaging system
Hag Chul Kim, Suwon-si (KR); Hyuk Joo Kim, Suwon-si (KR); and Kyu Min Chae, 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. 21, 2023, as Appl. No. 18/391,957.
Application 18/391,957 is a continuation of application No. 17/889,696, filed on Aug. 17, 2022, granted, now 11,885,942.
Application 17/889,696 is a continuation of application No. 16/108,599, filed on Aug. 22, 2018, granted, now 11,448,857, issued on Sep. 20, 2022.
Claims priority of application No. 10-2017-0155623 (KR), filed on Nov. 21, 2017.
Prior Publication US 2024/0134157 A1, Apr. 25, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G02B 13/00 (2006.01); G02B 1/00 (2006.01); G02B 1/04 (2006.01); G02B 13/04 (2006.01); G02B 13/16 (2006.01); G02B 27/00 (2006.01); H04N 5/225 (2006.01); H04N 23/55 (2023.01)
CPC G02B 13/0045 (2013.01) [G02B 1/007 (2013.01); G02B 1/041 (2013.01); G02B 13/04 (2013.01); G02B 13/16 (2013.01); G02B 27/0025 (2013.01); H04N 23/55 (2023.01)] 12 Claims
OG exemplary drawing
 
1. An optical imaging system comprising:
a first lens having negative refractive power;
a second lens having negative refractive power;
a third lens comprising a concave object-side surface and a convex image-side surface;
a fourth lens having refractive power;
a fifth lens having refractive power;
a sixth lens having negative refractive power; and
a seventh lens having positive refractive power,
wherein the optical imaging system comprises a total of seven lenses and the first to seventh lenses are sequentially disposed from an object side toward an image side such that the fifth lens is spaced apart from the fourth lens at an optical axis,
wherein TTL is a distance from an object-side surface of the first lens to an imaging plane of an image sensor, IMGH is a half of a diagonal length of the imaging plane of the image sensor, and TTL/(2*IMGH)<3.05.