Scientifically speaking, white and black are not considered colors. I know you can see black and white, but how light works may make you think differently about them as colors. First, let's talk about ...

Photometers or light meters are radiometers that include a filter and photodiode and responds based on the average human eye: the CIE 1924 luminosity function V λ. However, the light sensitive diode ...

If there’s an engineering hierarchy of LED lighting, colour-mixing hard lights are at the top of it, combining all the difficulty of colour control with putting all the emitters in one place. For a ...

How do you find the quality of the light a light bulb produces? Using the color rendering index, a measure of how well a light bulb illuminates a range of colors. Appliance Science looks at the ...

When we discuss colour in filmmaking, we're usually interested being – well – correct. But we might also talk about the steel blue of night, an amber sunset, or the greenish tinge that comes from ...

Try to imagine reddish green — not the dull brown you get when you mix the two pigments together, but rather a color that is somewhat like red and somewhat like green. Or, instead, try to picture ...