Abstract: The optical system disclosed in the embodiment of the invention includes a plurality of lenses arranged in the direction from the object side to the sensor side, wherein at least one first lens of the plurality of lenses includes a first surface that is an object-side surface and a second surface that is a sensor-side surface, a length in a first direction of the first surface is different from a length in the first direction of the second surface, the length in the first direction of the first surface is shorter than a length in a second direction of the first surface, the first direction is orthogonal to an optical axis of the lenses, and the second direction is perpendicular to the first direction and the optical axis.

Abstract: A camera module disclosed in an embodiment of the invention includes: a first holder having a plurality of first lens groups arranged in a first direction; a second holder having a plurality of second lens groups arranged in the first direction; and a first driving means for moving the first holder having the plurality of first lens groups in the optical axis direction, wherein each of the plurality of first lens groups may include a plurality of lenses, and each of the plurality of second lens groups may include a plurality of lenses.