China has made a major breakthrough in the LED international standard discourse right

Semiconductor lighting is one of the world's hot industry at the beginning of this century the rise, got the attention of many countries. LED is the core component of semiconductor lighting, because it is a PN junction light-emitting, with high brightness, high light efficiency, long life, environmental protection and many other advantages, its application in recent years has been rapid development. Especially in 1993 after the successful development of the Nakamura based GaN Blu ray LED light-emitting devices in Japan, the white chip LED technology and the rapid development of the industry based on blue chips. At the same time, the high brightness blue light radiation on human retinal damage also attracted global attention, the emission spectra of GaN based blue LED current in the sensitive spectral position of human retinal photochemical damage, the experiment of animal experiments and human retinal tissue cells have been obtained based on a large amount of scientific data. In South Africa in July this year, the twenty-seventh session of the International Commission on illumination CIE conference, Hangzhou Zheda trichrome instrument limited company chairman Mou Tongsheng pointed out that the current light radiation hazard level of biological products and a small amount of LED can achieve the "two class" RG2 (1); that is to say, when the eyes look high brightness up to tens of LED hundreds of seconds, on the retina caused by photochemical damage permanently.

Internationally, the European Commission in 2006 issued a directive twenty-fifth, exposure to artificial light radiation caused by the hazards posed by the safety and health requirements. At present, the EU has biological radiation safety of LED products listed in one of the important requirements for product safety certification of CE; Britain, German and other countries have formulated the corresponding mandatory safety standards for the products of LED; last year, French food, environment and occupation health and safety bureau also issued relevant documents, to make the lighting LED system should be considered in light of health problems. The United States has developed the relevant standards, the United States LED product safety certification UL standards also began to develop appropriate market access requirements.

Specification for safety of the International Committee for standardization of lighting products IEC T34 has been in the LED module, LED self ballasted lamps, LED lamps and other products in the provisions of the Photobiological Safety requirements of radiation; International Radiation Safety Standardization Committee IEC TC76 is working to develop a series of bio optical radiation safety standards (IEC62471); the basic standard optical radiation safety and biological requirements of manufacturers have issued guidelines. The light of biological safety standard LED products IEC TC76/WG9 is currently the most important work.

With the wide application of LED products, how to ensure the security of LED products into the market, is the current international industry is very concerned about the issue. Compliance testing and certification organization IECEE is establishing the corresponding standard product certification of the International Electrotechnical Commission, how light biological radiation safety of LED products is the focus of scientific testing, is very concerned about the issue of the world. Zhejiang University optical detection expert Mou Tongsheng in Seattle in October 2010 seventy-fourth IEC International Standardization Conference, on behalf of Chinese National Committee put forward the "measurement method" light radiation biological safety of lamps and lamp systems international standard proposal, the experts support, and confirmed by the Chinese proposed new draft international standards.

In March this year, the draft international standard IEC drafted by Hangzhou Zhejiang tricolor Instruments Co. Ltd., established procedures for examination and approval in accordance with the IEC international standard, China submitted by the National Standardization Management Committee to the IEC central office, followed by various countries for a period of three months of the vote, vote at the end of July. The proposal was supported by 100% countries, confirmed. Zhejiang University, Hangzhou three color Instrument Co., Ltd. professor Mou Tongsheng as the head of the project, while six countries sent experts to participate in the development.

In the world, China is a big country of manufacture of lighting products, in the formulation of international standards has been in a weak position, had not yet formulated by international standards. In recent years, China's semiconductor lighting industry is developing rapidly, will become an important manufacturing base in the world. Therefore, our country in the light of bio radiation safety and other new areas, especially play a leading role in the formulation of international mandatory standard, will have an important impact on the manufacturing power semiconductor lighting industry in China from a big manufacturing country to become.

Note 1: optical radiation safety is divided into "exempt class" (RG0 no danger), "one class" (RG1 low risk), "two" (RG2 moderate risk) and "" (RG3 high risk) and other four kinds of.