What is correlated color temperature (CCT)?

Not all white light sources are perfectly white. They have different color power distribution in uneven white spectrum, often correlated by color temperature: cool or warm.

Photo: Graphical representation of color temperature in visible spectrum. Source: Dariusz Kowalczyk, License: Creative commons attribution


The correlated color temperature (CCT) of a light source is the temperature of an ideal black-body radiator that radiates light of a color comparable to that of the light source.  Color temperatures over 5000 K are called "cool colors" (bluish), while lower color temperatures (2700–3000 K) are called "warm colors" (reddish). This color temperature of electromagnetic radiation emitted from an ideal black body is represented in Kelvin.





Sensegood Spectrophotometer

To achieve true color reflected from the object, balanced white light source must be applied. Sensegood Spectrophotometer is equipped with robust light source – Complementary compensating full spectrum long life 98+ CRI LEDs to take care uneven spectral power distribution of artificial light sources. Further spectral balancing is achieved by firmware algorithms. Sensegood Spectrophotometer measures color of non-illuminating object and provides correlated color temperature.


Learn more about most affordable yet technologically advanced color measurement instruments:


Author:
Sanket Patel, Ph.D. Electronics
Dr. Sanket Patel is IEEE award winning researcher, technopreneur and a technology enthusiast

 

Location: 314 Riley St, Surry Hills NSW 2010, Australia

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