Irradiance is defined as the quantity of energy released at every wavelength from a luminous sample, such as an LED, a laser, or the sun. More precise intensity levels can be computed using the above...
Fluorescence is the absorption and emission of light of two different frequencies. Typically, a lower wavelength of incident light is absorbed from one direction, and a higher wavelength of light is emitted in all directions....
Color occurs when light is perceived by the human eye. Color reflected from, or emitted by samples can be measured using basic color meters or more robust spectral devices for more detailed analysis. Accurate color...