Patent ID: 11885943
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. An electronic device comprising:
a lens assembly comprising a plurality of lenses arranged from an object side to an image side;
an image sensor configured to detect an image of the object based on incident light passing through the plurality of lenses sequentially; and
an image signal processor configured to store or output an image,
wherein the lens assembly comprises:
a first lens having positive optical power with respect to incident light incident from the object side and having a convex surface facing the object side; and
a second lens comprising a meta-lens having negative chromatic aberration with respect to the incident light passing through the first lens, and

wherein the meta-lens satisfies the following equation:

fM1λ1=fM2λ2=fM3λ3,

where fM1 is a focal length of the meta-lens for light of a first wavelength λ1 of the incident light, fM2 is a focal length of the meta-lens for light of a second wavelength λ2 of the incident light, and fM3 is a focal length of the meta-lens for light of a third wavelength λ3 of the incident light.