In addition to plane, sphere, the LTP can test surface of cylinder, conic, toroid, ellipsoid, hyperboloid, different kind of rotary surfaces and no standard asphere.

• 可测量的面形除了平面、球面外，还有所有非球面，如圆柱面、圆锥面、抛物面、椭球面、双曲面、超环面、各种旋转面和其他非标准非球面。