LIGHT filters of coloured glass and gelatin are in common use for visual and photoelectric photometers. They are satisfactory, on the whole; but the glass filters are easily broken, and those of ...

The low-light photographic performance of smartphones could soon get a significant boost, thanks to the development of a new type of color filter. Created by an engineer at the University of Utah, the ...

This hidden gem iPhone feature turns my phone from a carnival of excitement to an absolute snoozefest. Here's how to do it.

Many displays are difficult to read when viewed in sunlight. Fortunately, optical filters offer a low-cost solution to this problem. To specify a filter, the lighting conditions a display will be used ...