“…[6] The curve labeled Blackwell73 is from one of Blackwell's 1973 studies, and appears as if it was a commercially available panel. [7] The curve labeled PCTechnologies is 1982 catalog data for a multilayer polarizer available at that time. The curve labeled NLPIP is from the Lighting Answers report from Rensselaer, and represents a measurement from a commercially available panel circa 1992.…”