Analysis: LED's future can go much better

About the future of LED, the audience and the Architecture Department of Shenzhen University professor Zhao Haitian, Tsinghua University Shenzhen Graduate School of Physical Electronics and laser devices associate professor; Tsinghua University Shenzhen Graduate Institute deputy director of semiconductor lighting laboratory Qian Keyuan, Dr. Yang Changjiang, Foxconn Electronics Limited representative of the common.

Heat is not the most fatal problem LED

Question: I am from Dongguan, is specialized in the radiator, the heat dissipation problem about LED, I would like to ask the experts, to see how the LED lamp radiator prospects, special heat dissipation material we use Aluminum Alloy and pure aluminum and magnesium alloy, I would like to ask the experts, which in the end one is the best, the development prospect?

Money yuan: I just mentioned the radiator, along the way I speak, not LED radiating the most fatal problem, LED will certainly increase, increase in the efficiency of the 80-90%, the heat will be much smaller, just building experts said, LED will go to two extremes of course, such as lamp, the ultimate goal is ultimately the projector. There is a reflective, home lighting floodlight most comfortable, there is no need to unscrew a light bulb on the lamp cover, if the lighting is certainly a large area, is the pursuit of a large area, when the heat is not a big problem, and now the light effect is not so high, for example if 200lm/w, now the lamp will be reduced by half, I think the heat finally will be more simple, just about Aluminum Alloy, Aluminum Alloy copper, the best, I think Aluminum Alloy is good, of course, aluminum and cast aluminum may have some cost considerations.

Zhao teacher: I recently read an article, the problem of heat dissipation is contains two meanings, one is to heat your substrate and you must cover the outside compaction problem, there is a gap of maximum thermal resistance. The two is the outer cover and the outside heat is two ways, one is the outward radiation heat convection is two, from our present situation, convection is the main, how to increase the degree of heat convection? This thing and surface roughness, and also related material placing direction, is probably such a situation. Specific technical issues may be discussed in private.

To own when the white mouse, test the water LED street lamp

Host: published opinion members of the teacher, Dr. Yang Changjiang said Foxconn, Foxconn Guangzhou International Lighting Fair last year, you advocate road lighting and garden lights, Foxconn in the heat treatment what is your results, you can't share with you compared to Foxconn and other lamps what is the core of the advantages of similar products? Of course, you can also tell the bottleneck.

Dr. Yang: advantage not speak, because we do not necessarily have the advantage, Foxconn is to enter the lighting industry from the IT industry, lighting industry has very many barriers and industry knowledge, Foxconn in the LED industry for more than two years, I think I can provide some experience and you share what we the original selection of street lamp as a starting point, the Foxconn factory, can be their own when the white mouse, we from the Shenzhen factory in Longhua, Wuhan, have been to Yantai, Nanning and other plant by tens of thousands of lanterns, the longest should be more than a year, we have encountered a lot of problems in it. These problems just talked about difficulties in promotion of street lamp in the middle is our professor Qian bitter. We made a year later, we feel that we have before to feel in the indoor lamp piece, all of our factory lights replaced with LED lights, from the beginning of April this year, every month more than ten thousand shipments, light is our own factory, indoor and outdoor lighting lamp with a wide gap, outdoor lamp at present Chinese CQC we also applied for QCQ, mainly in security, CQC answered Chinese domestic considerations, energy-saving lamp LED certification, as efficient lighting introduced in 2006, may serve as the third batch of street candidate, we are also concerned about this piece of. From the perspective of the present tentative plan issued, I think CQC lamp certification in terms of energy saving, energy saving certification may be placed in the light of this one, because the introduction of LED lamp standards, from last year the first production in Fujian, Guangdong is the third street, standard of LED design has some specifications LED, hot behind to do rational thinking, the traditional street lamp to the inside of the bulb is removed to change up absolutely is not feasible, of course, before the manufacturers pay a high price.

We often predicted in the whole business promotion of the problem, LED source is a lighting industry, LED is a new source of all my personal feelings, all of our future LED standards will gradually establish or modify the increase becomes a light source on the special application the original lighting industry. I want to mention is that I read a lot of reports, LED lights may be exaggerated, with our experience of Foxconn, we get in the amount of area, compared with the traditional HPS 60%-70% lights and energy saving, I think when the reporter, want to give Ding Zhaoming a suggestion of Allah you, when writing this article, may have to assume the precondition and write out, otherwise it is misleading to some users. I think there are a lot of official agencies and users have some bad impression, we also encountered a lot in the promotion process, a demonstration is not the case. On the barrel of Professor Qian mentioned, I think and LED drive is a piece of LED light source to ensure that 50 thousand hours is basically no problem, any one