Liu Muqing: LED applications in the visual and non-visual areas are worth paying attention to

About Incandescent/CFL Out:

China Lighting Network: Following the introduction of the incandescent lamp ban in China, under the flood of new light source LED boom, the people are also doubtful about the future development and use of energy-saving lamps, and the recent energy-saving lamp inspection and frequent sampling, energy-saving lantern festival The question of powerlessness is once again being taken care of by society. What do you think of this?

Liu Muqing: The indicator requirements of energy-saving lamps are many, not only energy-saving aspects. The problem of finding out some products this time does not represent the overall problem of energy-saving lamps. After years of development, the overall level of energy-saving lamps has greatly improved, but individual companies or individual batches of problems are inevitable. Of course, when companies expand production, they must strengthen quality supervision.

China Lighting Network: The entry of LED will mean that energy-saving lamps will soon be facing the fate of elimination? Will the energy-saving lamp's product life cycle enter the recession early?

Liu Muqing: The rapid development of LED technology has gradually entered the general lighting field, including indoor and outdoor. This inevitably has an impact on the energy-saving market. However, this effect is still relatively small. It is believed that with the advancement of LED technology and the further drop in price, LED will gradually occupy the market of traditional lighting products in many application fields.

On the LED hot low-carbon development China Lighting Network: In terms of the development of China's LED lighting, prices and technology in a short period of time has not been able to break through, how to make LED into the homes of ordinary people, what advice do you have? (Or what is the biggest drawback of LED at this stage?)

Liu Muqing: Indeed, the main factor that restricts the further expansion of LED products is the price. Because, compared with energy-saving lamps, LED prices are still high. However, the main technical indicators of LED light efficiency still have a lot of room for improvement. With the improvement of light efficiency, the price of LED will also drop rapidly. At the same time, the improvement of LED light efficiency and the decrease of the price will expand the LED application field and market share, which further causes the decline of LED price.

Of course, the uneven quality of LED products on the market is another reason that restricts LED to enter the market.

China Lighting Network: At this stage, both China's SMEs, or traditional lighting companies have turned to the signs of the LED lighting market, for the LED this fierce boom, what do you think of it?

Liu Muqing: Overall, this is correct. Technically, LED products have great potential for development. Traditional lighting products such as energy-saving lamps have limited development space. Therefore, the traditional lighting companies to enter the LED is the trend.

China Lighting Network: As experts and scholars in the field of electric light sources in the industry, what problems will they face in the future? What are your suggestions?

Liu Muqing: The flexibility of LED products makes it easy for LED to enter some special fields. But for functional lighting, flexibility will cause the interchangeability of products, which need to be constrained in the form of norms or standards.

China Lighting Network: Do you have research on UV LED? Do you think it will become the future opportunity opportunity for the LED industry?

Liu Muqing: As a light source for generating UV light, LED has a certain application field. However, it mainly concentrates on the near-ultraviolet wavelength band and can be used for sterilization, disinfection, and other applications.

About LS13

China Lighting Network: It is understood that there are not many people who know about LS in China. Can you briefly introduce the general situation of LS?

Liu Muqing: Yes. The full name of the LS series conference is "International Light Sources Technology Symposium", the first of which began in 1975 in Loughborough, United Kingdom. It is basically every three years. In 2007, LS:11 was held in Fudan University in China. After 2010, due to the rapid development of LED technology, it was changed every two years and its name was changed to "International Symposium on the Science and Technology of Lighting". This year is LS:13, held in Troy, USA.

The LS series conference is a science and technology seminar. It is a top-level conference for scientists in this field to discuss lighting science and technology development. Unlike the current domestic forum-style conferences, this conference only involves science and technology issues, does not involve commerce, and does not accept sponsorship of a commercial nature. It is also because of the academic nature that there are not many Chinese counterparts attending this meeting, each time being about 10 to 30 people. Research institutes such as the Electric Light Source Research Institute of Fudan University in China have always participated in this conference, and some corporate counterparts also participated in the conference to learn about the latest developments and trends in this field.

China Lighting Network: What is the topic of this year's LS13? Compared with previous years, what are the newly published research project achievements/information that can be shared with us?

Liu Muqing: The LS13 basically continues the tradition of the conference. However, due to the rapid development of LED technology, there are two changes: the name of the conference and the conference cycle. Because LED flexibility brings about unlimited applications of LED, LED lighting applications (lighting, non-illumination, but Chinese are more lighting) have great development prospects. So do these two changes.

The contents of this session can be seen that LED has been included as the main aspect of the conference, including conference papers and conferences. In addition to HID lamps, traditional lighting sources involve very few. On the LED side, non-visual application reports and papers have occupied a lot of space. At the same time, papers on scientific issues including lighting have also increased dramatically.

China Lighting Network: LS as a light source for the development of light sources, through the introduction of new technologies, new information sharing, which will give Chinese companies what kind of enlightenment?

Liu Muqing: LED is worthy of attention, including LED applications in the visual and non-visual areas worthy of attention.

China Lighting Network: What is the biggest impression of this meeting for you?

Liu Muqing: The LS Conference is an international conference on the light source and lighting. Most of the world’s leading scientists and industry’s top technology personnel have attended the conference. As academic conferences, the issues discussed can be seen in the future direction of the industry. This is a major difference from many current forum-style meetings. It is believed that the meeting is very useful for Chinese counterparts to understand the future development trend of the industry.

Prof. Liu Muqing and Ph.D. served as director of the Institute of Electric Light Sources at Fudan University and head of the Department of Light Sources and Lighting Engineering. He served as a part-time manager of the International Electric Light Source Committee, the Secretary General of the 11th International Committee on the International Conference on Electric Sources, and the National 863 Major. The project is a member of the general expert group of semiconductor lighting engineering, deputy director of the board of directors and academic committee of the China Illuminating Society, vice director of the Shanghai Illuminating Society and director of the Academic Committee, and deputy director of the editorial board of China Lighting Magazine. The research direction includes LED packaging, lighting application technology, electric light source testing technology, lighting automatic control technology and system development. He has completed or is undertaking dozens of national 863 projects, scientific and technological support projects, Shanghai scientific and technological research projects, international cooperation projects, and domestic cooperation projects. Shanghai Science and Technology Progress Award and many others. It has more than 60 related patents such as LED in China and the United States. He has been invited to make LED and related reports at home and abroad. He visited Konstanz University in Germany from 1998 to 1999. Published more than 40 papers, one each in Chinese and English monographs.