(Nanowerk News) It is no mystery that light is essential to human life. Since the discovery of fire, humans have developed various artificial light sources, such as incandescent lamps, gaslights, ...

The interplay between light and hand-held device screens has driven research into light-diffusing materials that obviate such undesired aspects as image blur. As the field continues to expand, the ...

Like a traffic cop directing cars, a layered stack of transparent materials permits light arriving from only a single direction to pass through. Such angle-sensitive filters could improve cameras and ...

Phil Rhodes takes a look at Tiffen's Antique range of filters, giving a friendly glow to proceedings. Diffusion filters do some very popular things. They produce pretty glows, reduce excessive ...