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IEC goniophotometer for LED strip light illuminance lux measurement

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An LED strip light's illuminance (measured in lux) may be determined with the use of an IEC goniophotometer. Standards for photometric measurements, such as the measuring of illuminance from LED lighting devices, are provided by the International Electrotechnical Commission (IEC). The IEC goniophotometer has a rotating arm that it utilizes to measure the light coming from the LED strip light from a variety of different angles. A photometric distribution pattern is produced by the instrument when the illuminance (lux) of the light at each angle is measured. This pattern is a representation of how the light is distributed throughout the whole angle range. The IEC standards detail the techniques and processes that must be followed in order to carry out these measurements in a manner that ensures both accuracy and consistency in the findings. Manufacturers and lighting experts are able to determine the illuminance performance of LED strip lights and compare it to the performance o