The LED filament technology of the most electricity saving in Hongkong science and technology

Reporter Tang Xiaoming reports: Hong Kong Polytech University uses the new nano processing technology to develop the most power saving LED filament lamp in the market. The luminous efficiency is 1.5 times the traditional LED lamp. The price and cost are half of the traditional LED lamp. The electric charge and carbon emission of the lamp are less than half of the traditional electric gallbladder. Produce and launch the market.

Zhao Chongzhi, a graduate of technology research and development, science and technology industry and system engineering, has developed the most power - saving LED filament technology in the market. "The new technology is due to my graduation thesis. When I first conceived the title of the paper, I hope to develop a new type of lamp, including the time of graduation thesis, which will take two and a half years. It is very happy for the product to apply for a patent. "

Zhao Chongzhi said the total cost of the product development was about 300 thousand yuan (Hong Kong dollars, the same below). In 2015, one hundred thousand yuan was allocated from the "Li Da micro fund". The surplus was supported by the laboratory. The company is now discussing cooperation with four to five companies. It is expected to produce and launch the market in the middle of this year.

He said that the LED filament lamp uses a number of small power LED chips to replace the monolithic high power LED chip, reducing current loss and even more uniform light distribution. The material of the carrier is changed from ceramic to good heat dissipation, low cost and strong photometric aluminum, and its luminous efficiency is 129 lumens / Watt (lm/W), about the traditional LED lamp and the electricity. The bile was 1.5 times higher and 2 times higher respectively, and the ultraviolet radiation was 1/10 of the traditional gallbladder.

Du Xue, deputy director of the State Key Laboratory of ultra precision processing technology, said that because LED filament lamps do not need to use pressure variable components, direct conversion from alternating current to low voltage DC, the parts reduce, the luminous efficiency is promoted, so the retail price and cost of light bulb are 45 yuan and 20 yuan respectively, about half of the traditional LED lamp, one of the filament lamps. The annual electricity and carbon emissions, respectively, are 33 yuan and 22kgCO2E, lower than half of the traditional electric gallbladder.

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