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Mean Spherical Candlepower (MSCP)
Mean Spherical Candlepower (MSCP) is a measure of the average luminous intensity of a light source in all directions (spherical). It is...
Read moreFootcandle (fc)
Footcandle (fc) is a unit of illuminance , which indicates how much light a surface receives. 1 footcandle = 1 lumen per...
Read moreWien's Law
Wien's law of displacement describes the relationship between the temperature of a black body and the wavelength at which it emits the...
Read moreUniform Chromaticity Scale Diagram (UCS)
The Uniform Chromaticity Scale Diagram (UCS) is a modified version of the CIE 1931 chromaticity diagram , designed to improve perceptual uniformity....
Read moreTyndall effect
The Tyndall effect is the phenomenon whereby light is scattered by small particles in a colloidal solution or suspension . This effect...
Read moreMie scattering
Mie scattering is a type of light scattering that occurs when light interacts with particles approximately equal to or larger than the...
Read moreRayleigh scattering
Rayleigh scattering is a physical phenomenon in which light (or other electromagnetic radiation) is scattered by particles much smaller than the wavelength...
Read moreAmount of light (luminous energy, Q)
Luminous quantity (Q) is a measure of the total light emitted from a light source over a given period. It is the...
Read moreLighting Effectiveness Factor (LEF)
The Lighting Effectiveness Factor (LEF) is a measure of the efficiency and effectiveness of a lighting system , taking into account the...
Read moreLighting Cooling Index (LCI)
The Lighting Cooling Index (LCI) is a measure of the coolness of a light source. This index helps determine the color temperature...
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