The Asensetek Lighting Passport spectrometer combined with the SGE APP is a powerful tool capable of making a broad array of lighting measurements among which are a core set of metrics that are indispensable to anyone wishing to obtain a definitive understanding of any light source.
Illuminance in lux
CCT – Correlated colour temperature expressed in Kelvin
Chromaticity (an objective specification of the quality of a colour regardless of its luminance presented in the CIE 1931 xy chromaticity space)
CRI Color Rendering Index. CRI is a quantitative measure of the ability of a light source to reveal the colours of various objects faithfully in comparison with an ideal or natural light source. Light sources with a high CRI are desirable in colour-critical applications.
Knowledge of Illuminance, CRI, CCT and Chromaticity is critical when designing a lighting installation, verifying performance both post installation as well as in years to come; for example, when assessing compliance to lighting manufacturers’ performance guarantees.