Recently, the International Commission on Illumination (CIE) released the international standard CIES025: 2015 "Test Method LED lights, lamps and modules," which is the world's first LED product testing methods for international standards, or will be referred to the industry's most influential Force testing standards. The standard originally proposed by Professor photovoltaic project of Pan Jiangen distance, electrical lighting in the National Standardization Technical Committee appointed sub-standard optical radiation measurement of tissue, the country also set up corresponding standards working group, on the one hand made a lot of Chinese opinion that international standards , on the other hand converted to our standard made full technical preparation.
CIES025 consists of CIE division 2 technical committee be responsible for the formulation of TC2-71, at the beginning of the project was the standard, CIE and European standardization technical committee (CEN) signed an agreement, the standard will be posted as a European standard (EN).According to the process of CIE, the standard will soon by the international organization for standardization (ISO) into a formal ISO standards.In addition, the international electrotechnical commission (IEC) and CIE also reached out to the IEC will not into this standard, but will be in direct reference to related contents are concerned.
Light chromaticity parameters of LED products for accurate and reliable measurement is to evaluate product performance and design the basic requirement of the lighting system, namely must ensure that the measured data consistency in the different lab, in order to achieve the comparison of different products under the same benchmark.It is based on this idea, CIES025 on LED lights, lamps and lanterns and module proposed materials with high luminosity and chroma test requirements, and related test data report.Measuring parameters include total luminous flux, luminous efficacy, part of the luminous flux, luminous intensity distribution, intensity, color, brightness, brightness distribution center coordinates, correlated color temperature, color rendering index, and the role of uniformity.
