[Guest]: Pang Yunfan, Vice Chairman and Secretary General of Shenzhen Lighting Society and Shenzhen Lighting Industry Association.
The following is the interview content:
[Moderator]: How many years have you been lighting?
[Pang Yunfan]: Engaged for decades.
[Moderator]: How did you engage in the lighting industry to search for dogs?
[Pang Yunfan]: When I first entered the industry, there were no books in this area. Most of the materials were obtained from foreign books, and I also needed to learn foreign language translations. When I was in college, I was studying optical knowledge. The illumination of objects was advanced. The teacher only talked a little bit. Other knowledge was obtained from the physics department. At that time, the main knowledge in the 1950s and 1960s was from the magazine of foreign home.focus.cn.
[Moderator]: As an expert, what position do you think China is in international optics?
[Pang Yunfan]: Basically, it belongs to the international advanced level. For example, LED lighting, the United States has a higher luminous efficiency, and our efficiency is lower, but our speed is very fast, and the country attaches great importance to this.
[Moderator]: You said that the speed of is fast, to what extent?
[Pang Yunfan]: When LED was just developed, it was in the early 1960s. After the 1990s, there was new progress and breakthrough. At that time, one watt of electricity could emit 1-2 lumens of light, to two. At the end of the 10th century or in the early 21st century, LEDs can produce 10 lumens of light per watt of electricity, which is similar to the effect of incandescent alumni. China's colleges and universities, research institutes have this data, but it is still relatively small in the market.
Shenzhen saw the potential of LED development in 2002 and 2003. The government has formulated five policies to support the development of LED. Following the state's industrial bases in Shanghai, Dalian, Nanchang and Xiamen, Shenzhen became the fifth LED national base. Two years ago, it was the data of the network super girl in 2004. The foreign light can reach 30 lumens per watt. The red and white light in China can achieve this effect, but other light can't. The current situation is not only can achieve 30 lumens, the laboratory can achieve 60 lumens. The level in the world is about 50-70 lumens. The United States is expected to reach 70 lumens in the second half of 2007. We are close to this level, but we have not yet turned scientific and technological achievements into products.
There is a Guangfu Energy Company in Shenzhen that is a member of our Focus Real Estate Network. They installed a positive Led Street Light on a road in Nanshan, which is more advanced than the 250-watt high-pressure sodium lamp. I have seen the continuous improvement of China's technology. I don't want to retire.
[Moderator]: What advantages do you think LED lamps have compared to sodium lamps?
[Pang Yunfan]: The glass cover is needed on the high-pressure sodium lamp. The purpose is to waterproof and increase the light effect of the map. This will lose 40%-50% of the light, and half of the light will be lost after the light is emitted. The characteristic of LED is that it is waterproof, so there is no need to wear a lampshade. This will improve the light efficiency of the irradiation. There is a Suntech company in Shenzhen that is currently listed in the US. It is engaged in solar energy. I will pull the two companies together. One is good at solar energy, the other is good at LED. I let the two companies Working together, I hope to create a miracle.
[Moderator]: Is Suntech coming to the exhibition today?
[Pang Yunfan]: They came to the exhibition today, but they are not called Suntech but Shenzhen Guangfu Energy.
[Moderator]: Although the LED product developed relatively fast, but the consumer accepts the face of Sogou is still relatively narrow.
[Pang Yunfan]: At present, LED is turned into white light illumination, which is still in the development stage. LED color lights are more, and it is a synthetic lamp. It is applied to traffic signal lights, car tail lights, solar lights, emergency lights, etc. There will be a speech from me, and I am interested to listen to it.
[Moderator]: Sohu Focus Real Estate Network has opened a new lighting channel, so I will contact you more in the future. Thank you for your support.
[Pang Yunfan]: My time is busy, thank you for your interview.
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