US 12,216,333 B2
Optical imaging system
Dong Hyuk Jang, Suwon-si (KR); Byung Hyun Kim, Suwon-si (KR); Jae Hyuk Huh, 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 Dec. 15, 2023, as Appl. No. 18/541,843.
Application 18/541,843 is a division of application No. 17/320,565, filed on May 14, 2021, granted, now 11,886,037.
Claims priority of application No. 10-2020-0123436 (KR), filed on Sep. 24, 2020.
Prior Publication US 2024/0134152 A1, Apr. 25, 2024
Int. Cl. G02B 9/04 (2006.01); G02B 9/12 (2006.01); G02B 13/00 (2006.01)
CPC G02B 9/04 (2013.01) [G02B 9/12 (2013.01); G02B 13/003 (2013.01); G02B 13/0035 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An optical imaging system comprising:
a first lens group disposed on an optical axis of the optical imaging system at an object side of the optical imaging system;
a second lens group disposed on the optical axis between the first lens group and an imaging plane of the optical imaging system; and
a third lens group disposed on the optical axis between the second lens group and the imaging plane,
wherein the first lens group and the second lens group are configured to be movable between respective first positions at which a first length of the optical imaging system along the optical axis from an object-side surface of the first lens group to the imaging plane is TL, and respective second positions at which a second length of the optical imaging system along the optical axis from the object-side surface of the first lens group to the imaging plane is TLs, and
TL and TLs satisfy the following conditional expression:
0.70<TLs/TL<0.79.