Human eyes, and most standard cameras, perceive visible light through a combination of red, green and blue (RGB), representing a limited number of visible light wavelengths, and just a fraction of the ...

Instead of a filter that divides light into three color channels, University of Utah engineers have developed a diffractive element that divides it into 25. A traditional digital camera splits an ...

If you’ve shopped for optical sorters in the last decade, “hyperspectral imaging” likely is a term you have encountered in some suppliers’ literature and on their websites. Hyperspectral imaging ...

Auroras are natural luminous phenomena caused by the interaction of electrons falling from the sky and the upper atmosphere. Most of the observed light consists of emission lines of neutral or ionized ...