US 11,927,731 B2
Lens and optical imaging system
Jae Hyuk Huh, Suwon-si (KR); Yong Joo Jo, Suwon-si (KR); Young Suk Kang, Suwon-si (KR); and Phil Ho Jung, 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 Mar. 26, 2021, as Appl. No. 17/213,762.
Claims priority of application No. 10-2020-0184433 (KR), filed on Dec. 28, 2020.
Prior Publication US 2022/0206274 A1, Jun. 30, 2022
Int. Cl. G02B 13/08 (2006.01); G02B 9/60 (2006.01); G02B 13/00 (2006.01)
CPC G02B 13/08 (2013.01) [G02B 9/60 (2013.01); G02B 13/0045 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A lens, wherein
a first profile in a first direction intersecting an optical axis and a second profile in a second direction intersecting the optical axis are different from each other,
a length of the first profile in the first direction is different from a length of the second profile in the second direction,
0<|(fx−fy)/fx|<0.01 in which fx is a focal length of the lens calculated based on a radius of curvature of the first profile, and fy is a focal length of the lens calculated based on a radius of curvature of the second profile, and
wherein 0.2<|(Rx1−Ry1)/Rx2|<2.0 in which Rx1 is a radius of curvature of an object-side surface of the first profile, Ry1 is a radius of curvature of an object-side surface of the second profile, and Rx2 is a radius of curvature of an image-side surface of the first profile.