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

Claim 40:
41. 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 an object from 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;
a second lens comprising a meta-lens having negative chromatic aberration with respect to the incident light passing through the first lens;
a third lens having negative optical power with respect to the incident light passing through the second lens and having a concave surface facing the image side;
a fourth lens having positive optical power with respect to the incident light passing through the third lens and having a concave surface facing the object side;
a fifth lens having positive optical power with respect to the incident light passing through the fourth lens and having a concave surface facing the object side; and
a sixth lens having negative optical power with respect to the incident light passing through the fifth lens and having a concave surface facing the object side,

wherein the lens assembly has a modulation transfer function of 0.5 or more at 120 cycles/mm or less for incident light, and
wherein the electronic device satisfies the following expression:

TTL/ISS<0.65,

where a total track length (TTL) is a total track length of the lens assembly and an image sensor size (ISS) is a diagonal length of the image sensor.