International LED standard research and development

“SOLID-STATE LIGHTING: Where Are We Going, What Are We Doing?”, this is the topic of Bill Kennedy, General Manager of the Optoelectronics Division of Toyota Gosei, Japan, published in the mainstream journal of Optoelectronics in August 2006. The importance and urgency of establishing LED standards for the semiconductor lighting industry, the subtitle of the article is: "Standards are needed to establish the future of solid-state lighting!", which indicates that the LED standard problem is the current global problem, the LED industry (semiconductor Lighting) is in its infancy, full of opportunities and challenges. The two major international standardization organizations closely related to LEDs are: International Commission on Illumination (CIE, acronym for French COMMISSION INTERNATIONALE DE L'ECLAIRAGE, English name INTERINTERATIONAL COMMISSION ON ILLUMINATION) and International Electrotechnical Commission (IEC, abbreviation for INTERNATIONAL ELECTROTECHNICAL COMMISSION) . There are professional divisions in these two international academic and standardization organizations, CIE pays more attention to the basics and methods, IEC pays more attention to product safety requirements and performance requirements, most documents of CIE are published in the form of technical reports, and IEC is generally officially Promulgated. From a purely legal concept, only standards have mandatory legal effects, but since CIE is the world's highest authority on light, radiation, and lighting, and a member of the International Standards Organization (ISO), CIE's technical report is full. Recognized by the world. There are also very fine professional divisions within CIE and IEC. The main focus of LED in CIE is Division 2 (D2), namely the optical and radiation measurement division, and the domestic corresponding measurement committee of China Lighting Association; The main focus of semiconductor lighting in the IEC is TC34 LAMPS AND RELATED EQUIPMENT (lights and related equipment), the National Lighting Standardization Committee (TC224) under the National Standardization Committee, and other departments and technical committees of CIE and IEC. Relevant standardization work should also be taken seriously. CIE is developing standards, technical reports and research reports on LEDs in 2006: TC 2-45, “Measurement of LEDs” CIE 17x-2006, Revision of CIE 127-1997. TC 2-46, CIE/ISO standard on LED TC 2-50, Measurement of the optical properties of LED clusters and arrays. TC 2-58, Measurement of LED radiance and luminance. TC 1-62, Color rendering of white Led Light sources. R4-22, Use of LEDs in visual signalling. TC 6-55, Light Emitting Diode (photobiological safety). Among them, TC2-45 has completed the reprinting of CIE127-1997, TC1-62 has completed the "Color rendering of white LED light sources" The work has been formulated and has been voted by various countries. In 2007, CIE17x-2006 "Measurement of LEDs" and CIE17x-2006 "Color rendering of white LED light sources" will be officially published by the Central Bureau of CIE. The current famous CIE127-1997 Will stop using. IEC TC 34 The LED standards for entry into national voting procedures in 2006 are: IEC 60838-2-2 (CDV, committee draft for voting): Miscellaneous Lampholders ?C Part 2-2: Particular requirements ?C Connectors for LED Modules. IEC 61347- 2-13 (CDV): Lamp controlgear - Part 2-13: Particular requirements for dc or ac supplied electronic controlgears for LED modules. IEC 62031 (CDV): Ed. 1: LED modules for general lighting - Safety specifications. IEC 62384 ( CDV): Performance of controlgear for LED modules dc or ac supplied electronic controlgears for LED modules ?C Performance requirements. In addition, other international organizations, such as the Institute of Electrical and Electronics Engineers (IEEE), advanced national industry associations, such as the North American Lighting Society (IESNA) ), the Japan Electric Ball Industry Association (JELMA) and other standards are in the development of semiconductor lighting standards. It is particularly worth mentioning that, since LED life can be as long as 10 years, and the life of LED in reality is mixed, and the gap is very large, the research on the evaluation method of LED equivalent life standard has become a hot spot of international attention.

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