CIE 225:2017 PDF Download

The CIE 225:2017 standard focuses on the importance of accurately measuring and controlling the thermal conditions of LEDs in order to obtain reliable and reproducible results. Specifically, the standard addresses the measurement methods and procedures for high-power LEDs under DC operation, with the aim of acquiring photometric, radiometric, and colorimetric quantities at a specified junction temperature.

The standard emphasizes that accurate measurement results for LEDs are strongly influenced by their thermal conditions, and thus, it is crucial to adequately set and control the junction temperature during optical measurements. By establishing standardized procedures, the CIE 225:2017 standard ensures that measurements of high-power LEDs are conducted consistently, with minimal uncertainties. Lastly, the publication is available in English, although it includes a brief summary in French and German to cater to a wider audience.