A color rendering index (CRI) is a quantitative measure of the ability of a light source to reveal the colors of

The color temperature of a light source is the temperature of an ideal black-body radiator that radiates light

A spectrum (plural spectra or spectrums)[1] is a condition that is not limited to a specific set of values but can vary,

Integrating spheres have a spherical-shaped inner surface and inner wall made of light scattering material, such as barium sulfate,