US 11,789,235 B2
Optical imaging system
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 Dec. 3, 2021, as Appl. No. 17/541,700.
Application 17/541,700 is a continuation of application No. 16/695,885, filed on Nov. 26, 2019, granted, now 11,231,562.
Application 16/695,885 is a continuation of application No. 15/950,775, filed on Apr. 11, 2018, granted, now 10,527,823, issued on Jan. 7, 2020.
Application 15/950,775 is a continuation of application No. 15/138,780, filed on Apr. 26, 2016, granted, now 9,971,125, issued on May 15, 2018.
Claims priority of application No. 10-2015-0164972 (KR), filed on Nov. 24, 2015.
Prior Publication US 2022/0091370 A1, Mar. 24, 2022
Int. Cl. G02B 9/62 (2006.01); G02B 9/60 (2006.01); G02B 13/00 (2006.01)
CPC G02B 9/62 (2013.01) [G02B 9/60 (2013.01); G02B 13/0045 (2013.01)] 10 Claims
OG exemplary drawing
 
1. An optical imaging system, comprising:
a first lens comprising positive refractive power and a concave image-side surface;
a second lens comprising positive refractive power;
a third lens comprising negative refractive power and a convex object-side surface;
a fourth lens comprising a refractive power;
a fifth lens comprising a refractive power;
a sixth lens comprising negative refractive power, a convex object-side surface, and an inflection point formed on an image-side surface of the sixth lens,
wherein the first to sixth lenses are sequentially disposed from an object side toward an imaging plane,
wherein the fourth lens has a concave object-side surface or the fifth lens has a concave image-side surface,
wherein a thickness of the first lens is greater than a thickness of the second lens,
wherein a distance from the image-side surface of the first lens to an object-side surface of the second lens is greater than a distance from the image-side surface of the fifth lens to the object-side surface of the sixth lens, and
wherein a radius of curvature of an object-side of the third lens is greater than a radius of curvature of an object-side of the second lens.