Laser Research Optics has introduced a line of OEM replacement CO2 laser optics for plaque and trophy engravers. The lasers are optimized for 10.6 µm, where depth of field is important, and they meet or exceed OEM and ISO-10110 specifications for optical elements. The device is supplied stand-alone or mounted, and it features focal lengths of 1 to 25 in. in half-inch increments. Its mirrors are made from silicon and copper in 1/2- to 3-in. diameters, and in thickness sizes 2 to 10 mm. Total absorption values are <0.2 percent, surface quality is 40-20 scratch-dig, and sphericity is <1/40 wave.