Telecentric lens group and measuring equipment

The invention relates to an optical element technology, and discloses a telecentric lens group and measuring equipment. The telecentric lens group comprises a front group lens, a rear group lens, and a diaphragm arranged between the front group lens and the rear group lens. The front group lens is provided with a first lens, a second lens, a third lens, a fourth lens, a fifth lens and a beam splitter prism in sequence from an object space to an image space; the rear group lens is provided with a sixth lens, a seventh lens, an eighth lens and a ninth lens from the object space to the image space in sequence; the second lens and the third lens are combined to form a balsaming lens, and the fourth lens and the fifth lens are combined to form a balsaming lens; the combined focal length of the front group of lenses is fixed, and the rear group of lenses with different combined focal lengths are matched to form telecentric lens groups with different magnifications. The invention aims to provide a telecentric lens w