REO manufactures a variety of Risley (wedge) prisms to enable high accuracy laser beam steering in a wide variety of demanding military, industrial and instrumentation applications. Our wedged prism pairs are manufactured with extreme care to ensure precise matching of wedge angles, bulk material indices of refraction, and accurate transmitted wavefront performance. REO Risley prism pairs also feature low scatter, low loss surfaces and IBS coatings to maximize throughput and laser damage resistance.