- Measurement of daylight and artificial lighting.
- Lighting evaluation in terms of significance for quality, repeated measurements.
- Evaluation of compliance with the required hygiene standards in the field of lighting.
- Measurement of lighting in residential areas, offices, and conference rooms.
- Measurement of lighting in workplaces.
- Measurement of lighting production and sports halls.
- Measurement of lighting in educational facilities.
- Measurement of lighting in health care facilities.
- Measurement of lighting in shopping centres and stores.
The output of our work is a measurement protocol that complies with all requirements of valid standards and which is required by a regional hygienic station or building authority depending on the type of contract. This protocol belongs amongst one of the important documents for the decision on building approval.
We can measure these quantities:
- Illumination (light intensity) E [lux]
- Lighting uniformity U0 [-]
- Correlated color temperature CCT [K]
- Deviation from Planck line of temperature radiators ∆uv [-]
- Color rendering index CRI [-]
- Color fidelity index (Norm TM-30) Rf [-]
- Color gamut index (Norm TM-30) Rg [-]
- Dominant wavelength λd [nm]
- Coordinates xy of colour space CIE1931
- Coordinates xy of colour space CIE1964
- Coordinates u,v of colour space CIE1976
- Spectral composition of light
- The amount of blue light in the light source
- Trichromatic components X,Y,Z
- TLCI (Television Lighting Consistency Index)
- TLMF (Television Lighting Matching Factor)
The measurement of photometric quantities is used by customers who want to verify if the lighting system was delivered to them according to the specification in the previously agreed design. It is mostly about the technical supervision of tenders and events financed from European funds, where the takeover of an unsatisfactory or unmeasured lighting system can mean a complaint or even the return of luminaires. Luminaire parameters such as light intensity, correlated colour temperature, and the colour rendering index are usually verified.
