Accurate measurement of light sources is of key importance due to the high energy consumption of lighting. To determine the energy efficiency of a lamp, both its luminous flux, light output as perceived by humans, and the active electrical power consumed need to be measured accurately. Both of these measurements pose challenges, especially when novel light sources, such as light emitting diodes (LEDs), are measured.
Metrology Research Institute is equipped with a wide range of photometric equipment, such as integrating sphere detectors and sources, standard lamps, photometers, and luminance meters, which allow us to perform measurements and calibrations on all key photometric quantities. These key quantities include luminous intensity, illuminance, luminous flux, and luminous efficacy.
Projects related to photometry
Information about the latest projects can be found in the links below
Metrology Research Institute is involved in European Metrology Programme for Innovation and Research (EMPIR) Project PhotoLED - "Future Photometry Based on Solid-State Lighting Products".
Metrology Research Institute is involved in European Metrology Research Programme (EMRP) project MESaIL - "Metrology for Efficient and Safe Innovative Lighting".
Metrology Research Institute has studied how unknown correlations in spectral irradiance data affect the quantities derived from this data.
The lifetime of a product is a key parameter when accessing the total costs of different lighting solutions. Metrology Research Institute studies the aging of LED products under different operating conditions.