Optical zoom imaging device of airport runway foreign object photoelectric detection system

The invention discloses an optical zoom imaging device of an airport runway foreign object photoelectric detection system. The optical zoom imaging device comprises four lens groups which are sequentially arranged along an optical axis from an object side to an image side, and the four lens groups are respectively a first lens group with a positive focal length, a second lens group with a negativefocal length, a third lens group with a positive focal length and a fourth lens group with a positive focal length. During zooming from a telescopic end to a wide-angle end, the relative positions ofthe first lens group and the second lens group are fixed, the second lens group and the third lens group can move along the optical axis direction in a preset association relationship to realize zooming, and the third lens group is used for compensating the focal aberration generated when the second lens group moves along the optical axis. By adopting the zoom imaging device, the requirements forhigh imaging quality, long