REO manufactures spatially variable response coatings, in which the center wavelength of operation changes with position in a linear manner over the surface of the optic. REO has developed a unique, proprietary, volume scalable technology which enables cost effective production of linearlyvariable filters over a wide range of sizes. These filters are available in the visible, near infrared, and mid-infrared spectral ranges and can be delivered on a variety of substrate materials.