Patent ID: 11914126
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. An optical imaging system, comprising:
a first lens group configured to move in an optical direction and having negative refractive power;
a second lens group comprising three lenses and configured to move in the optical direction and having positive refractive power; and
a third lens group disposed adjacent to the second lens group and configured to move in the optical direction and having negative refractive power,
wherein the first lens group, the second lens group, and the third lens group comprise a plurality of lenses and the optical imaging system includes a total of seven lenses,
wherein the lens closest to the imaging plane in the optical system is in the third lens group, and
wherein at least one of the plurality of lenses includes an aspherical surface.