US 12,468,128 B2
Lens assembly, imaging apparatus including the lens assembly, and electronic apparatus including the lens assembly
Hyunsung Park, Suwon-si (KR); Seunghoon Han, Seoul (KR); and Hyeonsoo Park, Suwon-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Oct. 27, 2022, as Appl. No. 17/974,726.
Claims priority of provisional application 63/272,441, filed on Oct. 27, 2021.
Claims priority of application No. 10-2022-0077081 (KR), filed on Jun. 23, 2022.
Prior Publication US 2023/0127423 A1, Apr. 27, 2023
Int. Cl. G02B 13/00 (2006.01); G02B 1/00 (2006.01); G02B 5/18 (2006.01)
CPC G02B 13/0055 (2013.01) [G02B 1/002 (2013.01); G02B 5/1809 (2013.01); G02B 13/0035 (2013.01); G02B 13/0045 (2013.01); G02B 2207/101 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A lens assembly comprising:
a first refractive lens;
a second refractive lens; and
a plurality of meta lenses arranged between the second refractive lens and an image plane,
wherein the second refractive lens is provided between the first refractive lens and the plurality of meta lenses,
wherein, among the first refractive lens and the second refractive lens, the first refractive lens is provided closest to an object,
wherein the first refractive lens has a positive refractive power and is configured to output first light, and
wherein the second refractive lens has a negative refractive power and is configured to receive the first light from the first refractive lens, correct secondary chromatic aberration in the first light, and output second light with the secondary chromatic aberration corrected in the first light,
wherein the plurality of meta lenses comprise a first meta lens and a second meta lens spaced apart from the first meta lens, and
wherein each of the first meta lens and the second meta lens comprises a plurality of nanostructures configured to receive the second light from the second refractive lens, correct primary chromatic aberration in the second light, and output third light with the primary chromatic aberration corrected in the second light.