2007-02-03 00:35:04 · 2 answers · asked by Anonymous in Beauty & Style ➔ Hair
CRI - Colour Rendering Index or how the colours appear under man-made light in comparison to natural sunlight. The sun is 100 CRI. The best man-made light is in the 90s.
Kelvin - Kelvin Colour Temperature Scale, refers to the quality of light emanating from an artificial light source.
Lux - Lux is a measurement of light output or intensity.
Lumens - Another measurement of brightness. We see yellow-green as the brightest colour. Picture the new yellow-green for school crossings and yellow school buses. Since yellow is the first colour we see as babies, the scale for brightness measures the amount of yellow light emitted. However, yellow is the narrowest part of the colour spectrum and we see better under a light that includes green, blue and violet!
2007-02-03 00:42:22 · answer #1 · answered by Anonymous · 0⤊ 0⤋
lux and lumens are related to light lumens is intensity lux is units
kelvin is absolute temperature mesauremnt in degree kelvin
2007-02-03 00:39:56 · answer #2 · answered by david j 5 · 0⤊ 0⤋