FARIBAULT, Minn., May 21 -- Viratec Thin Films Inc. has completed a $15-million expansion and is soon to commence production of Infinity V, the largest known vertical anti-reflection coater in the world. The fully automated Infinity V coating system will sputter-deposit optical thin film coatings onto vertically positioned substrates in sizes up to 100 x 144 . The system can produce over 20-million square feet of optically coated glass per year for the display, imaging, picture framing, architectural, and other related markets.