Our TECHSPEC® High Performance ReflX™ is built on the same design as our standrd ReflX™ with the added benefits of a λ/4 peak-to-valley (P-V) transmitted wavefront and a tapered mechanical design, which permits use at angles of incidence (AOI) up to 45°. Manufacturing reflective objectives that achieve λ/4 P-V transmitted wavefront requires mirror surfaces to be highly accurate. Our precision manufacturing facilities employ a QED Q22-MRF system and QED SSI Sub-Aperture Stitching Interferometer to polish and test our mirrors to surface accuracies of better than λ/20 P-V.