Dose UPRtek handheld spectrometer has coorected color temperature (CCT) when measuring monochromatic light?

Dose UPRtek handheld spectrometer has coorected color temperature (CCT) when measuring monochromatic light?

Since the LED monochromatic light source does not belong to color judgement of white light. Therefore, when you are using UPRtek handheld spectrometer measure a monochromatic light source, you will encounter following situations:

measure monochromatic light case study

The following reference data of the practical cases are using uSpectrum PC software for further analysis, which are measured by UPRtek handheld spectrometer for four kind of monochromatic lights:

Case 1 : Amber Light The chromaticity coordinates is inside the range of isotemperature lines,the Correlated Color Temperture (CCT) value is 1805K.

measure monochromatic light case study-Amber

Case 2 : Red Light The chromaticity coordinates is outside the range of isotemperature lines, the Correlated Color Temperture (CCT) value is 0K.

measure monochromatic light case study-red

Case 3 : Green Light The chromaticity coordinates is inside the range of isotemperature lines, the Correlated Color Temperture (CCT) value is 7754K.

measure monochromatic light case study-green

Case 4 : Blue Light The chromaticity coordinates is outside the range of isotemperature lines, the Correlated Color Temperture (CCT) value is 0K.

measure monochromatic light case study-blue

Therefore, when measuring monochromatic light, users should not refer the parameter of Correlated Color Temperture (CCT) for color judgement. It is recommended to use CIE 1931 x, y or Lambda d and Purity parameters to determine monochromatic light.

measure monochromatic light case study CCT

*Remark:
The CIE recommends that "The concept of correlated color temperature should not be used if the chromaticity of the test source differs more than from the Planckian radiator. Users may check Duv paramaters from uSpectrum Data column.

Resource: https://en.wikipedia.org/wiki/Color_temperature

measure monochromatic light case study-data

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UPRtek Dose UPRtek handheld spectrometer has coorected color temperature (CCT) when measuring monochromatic light? Introduction

United Power Research Technology Corp. is Taiwan supplier and manufacturer in Optoelectronics Industry. UPRtek has been offering our customers high quality Spectrometer, Color Meter, Spectral PAR Meter, Spectral Color Meter, Spectrum, LED Meter, Spectradiometer, LED Measurement, LED light testing since 2010. With both advanced technology and 8 years experience, UPRtek always make sure to meet each customer's demand.


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