{"id":5363,"date":"2025-12-17T12:21:52","date_gmt":"2025-12-17T12:21:52","guid":{"rendered":"https:\/\/asselum.com\/test-on-the-quality-of-light\/"},"modified":"2025-12-31T10:46:50","modified_gmt":"2025-12-31T10:46:50","slug":"test-quality-of-light","status":"publish","type":"page","link":"https:\/\/asselum.com\/en\/calibration\/test-quality-of-light\/","title":{"rendered":"Test on the quality of light"},"content":{"rendered":"

Test on the quality of light<\/h1><\/div><\/div><\/div><\/div><\/div>

Asselum has a state-of-the-art laboratory for evaluating the light properties of all types of light sources and luminaires. Our services include the assessment of the photobiological risk group to comply with IEC 62471:2006 and UNE EN 62471:2008, Photobiological safety of lamps and lamp systems.<\/p>\n<\/div><\/div><\/div>

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Photobiological safety testing and risk classification according to IEC\/EN 62471 and IEC\/TR 62778.<\/h2><\/div>

The IEC\/EN 62471 standard describes the health risks caused by optical radiation from light sources, lamps, and luminaires. It specifies how to classify them according to their emission spectrum (ultraviolet, visible, and infrared). Meanwhile, the technical report IEC\/TR 62778 allows the classification of lighting products whose main emission is in the visible spectrum (380 nm to 780 nm).<\/p>\n<\/div>

Measurement of light flicker.<\/h2><\/div>

In our laboratories, we have a system to perform light flicker measurements, an issue that is currently raising significant concern. For flicker measurement, we use a high-speed photometer capable of taking more than 180,000 measurements per second.<\/p>\n

Recently, the IEEE (Institute of Electrical and Electronics Engineers) published recommendation IEEE 1789-2015 for regulating flicker in LED lighting. This document defines the different variables related to flicker and its possible effects on people.<\/p>\n<\/div>

The test provides the following information:<\/h2><\/div><\/div><\/div>
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    Blue light hazard B(\u03bb).<\/div><\/li>
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    Luminance.<\/div><\/li>
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    Correlated Color Temperature (CCT)<\/div><\/li>
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    Direction of maximum intensity.<\/p>\n<\/div><\/li>

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    Classification of the photobiological risk group according to IEC\/EN 62471.<\/div><\/li><\/ul><\/div><\/div>
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      Flicker index.<\/div><\/li>
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      Flicker percentage.<\/div><\/li>
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      Flicker frequency.<\/div><\/li>
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      Flicker waveform.<\/div><\/li>
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      Forma de onda de la corriente de alimentaci\u00f3n de la fuente de luz<\/div><\/li><\/ul><\/div><\/div><\/div><\/div><\/article><\/div><\/div>

      Do you have any doubts?
      \nContact us at<\/h1><\/div>