Spectroradiometer

A "Spek-tra-ray-dee-ah-meter" measures the color and luminance of light six ways from Sunday. This particular model is the Konica Minolta CS-2000, the most expensive device in our lab (about $30,000) and capable of accurately measuring the color and brightness of "black" down to 0.003 cd/m2--darker than many TVs can display. OLED's "absolute" black might kick its butt, however.