The present invention relates to an electro-conductive, anti-reflection
coating with the conventional half-wave, high-index layer sandwiched
between two quarter-wave, low-index layers, in which the high-index,
half-wave layer forms an electro-conductive layer, and in which the layer
materials are selected such that an index ratio (high index/low index) is
between 1.45 to 1.55 providing wide band widths for the anti-reflection
coating. Preferably, the half-wave, electro-conductive, high index layer
comprises indium titanium oxide providing a sheet resistance of less than
20 ohms/sq.