Abstract
Compact and cost-effective array spectroradiometers are increasingly used in photometric and radiometric measurements. In this report, results of the colorimetric characterisation of LEDs using both low-end and high-end array spectroradiometers are compared to those obtained with the help of a conventional scanning double-monochromator spectroradiometer. Problems related to the utilisation of the array spectroradiometers for such applications are discussed. Effects of the most important instrumental parameters, such as the stray light suppression and the bandpass irregularities, are also assessed. The comparison showed an agreement among the results provided by the different spectroradiometers within the typical uncertainty levels, even for the low-end devices.
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