US 12,228,795 B2
Imaging lens system
Il Yong Park, Suwon-si (KR); Jong Gi Lee, Suwon-si (KR); Dong Hyuk Jang, Suwon-si (KR); and Han Ul Youn, 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 Feb. 4, 2022, as Appl. No. 17/592,873.
Claims priority of application No. 10-2021-0131852 (KR), filed on Oct. 5, 2021.
Prior Publication US 2023/0108264 A1, Apr. 6, 2023
Int. Cl. G02B 9/64 (2006.01); G02B 13/00 (2006.01)
CPC G02B 9/64 (2013.01) [G02B 13/0045 (2013.01)] 17 Claims
OG exemplary drawing
 
1. An imaging lens system, comprising:
a total of seven lenses with refractive power, the seven lenses comprising:
a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed from an object side toward an imaging plane,
wherein the third lens comprises a convex image-side surface in a paraxial region,
wherein the fourth lens has negative refractive power,
wherein the fifth lens has negative refractive power, and
wherein a ratio (TTL/2ImgHT) between a distance (TTL) from an object-side surface of the first lens to an imaging plane and a diagonal length of the imaging plane (2ImgHT) is 0.6 or less.