US 12,222,472 B2
Optical imaging system
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 Sep. 13, 2023, as Appl. No. 18/466,375.
Application 18/466,375 is a continuation of application No. 17/106,248, filed on Nov. 30, 2020, granted, now 11,808,920.
Application 17/106,248 is a continuation of application No. 15/085,429, filed on Mar. 30, 2016, granted, now 10,877,246, issued on Dec. 29, 2020.
Claims priority of application No. 10-2015-0142840 (KR), filed on Oct. 13, 2015.
Prior Publication US 2023/0418032 A1, Dec. 28, 2023
Int. Cl. G02B 13/00 (2006.01); G02B 5/00 (2006.01); G02B 5/20 (2006.01); G02B 9/60 (2006.01); G02B 27/00 (2006.01)
CPC G02B 13/0045 (2013.01) [G02B 5/005 (2013.01); G02B 5/208 (2013.01); G02B 9/60 (2013.01); G02B 27/0025 (2013.01)] 16 Claims
OG exemplary drawing
 
1. An optical imaging system comprising:
a first lens having positive refractive power;
a second lens having negative refractive power and a convex object-side surface;
a third lens having a refractive power;
a fourth lens having positive refractive power; and
a fifth lens having negative refractive power,
wherein the first to fifth lenses are sequentially disposed from an object side toward an imaging plane,
wherein R10>R4, where R10 is a radius of curvature of the image-side surface of the fifth lens and R4 is a radius of curvature of the image-side surface of the second lens,
wherein a distance from the image-side surface of the third lens to the object-side surface of the fourth lens is greater than a distance from an image-side surface of the fourth lens to the object-side surface of the fifth lens, and
wherein R3>R1 and R3>R2, where R3 is a radius of curvature of an object-side surface of the second lens, R1 is a radius of curvature of an object-side surface of the first lens, and R2 is a radius of curvature of an image-side surface of the first lens.