At present, what are the typical application fields of super-power professional lighting? What are the requirements for high-power lighting in these applications? How to solve the technical problems of these high-power lighting? Ye Shanghui, executive vice president of Zhongke Core Sources 6 On the 10th of the month, at the 15th High-tech LED Industry Summit Forum, a series of questions were raised.
Ye Shanghui, Executive Deputy General Manager of Zhongke Core Sources
It is undeniable that the typical application area of ​​super high power professional lighting is sports lighting. Nowadays, the mainstream products of sports lighting are metal halide lamps, and there are not many international lighting companies. Due to the broadcast effect of the game and the viewing effect of the audience, the installation height of the sports lighting and the uniformity of the light in the stadium are very high.
Ye Shanghui said, "Sports lighting has high requirements for installation, high reliability, and reliability of light fixtures, because of the high installation height."
Ultra-high power professional lighting will also be used in dock lighting. The cargo yard lighting, cranes and high poles of the terminal are all above 30 meters. In addition, the dock is close to the sea, and it has high requirements for protection, wind resistance and lamp volume. In Ye Shanghui's view, "In the future, the requirement for dock lighting is the illumination problem, which enables more precise local illumination in a higher space."
Airport lighting is also an area of ​​application for ultra-high power lighting. As we all know, airport lighting is a relatively difficult field to enter, and it is also a relatively closed field. The long-term mainstream products are sodium lamps, and some metal halide lamps are entering this market.
For the time being, LED ultra-high power lighting has only a small portion of application demonstrations in airport lighting. The more stringent requirements for the control of airport lighting spillovers in civil airport lighting standards, the LED lighting control precision also ushered in market opportunities.
Of course, LED ultra-high power lighting is also used in large construction areas. Such as landscape lighting, bridge lighting, museum lighting and other large building facades, these areas require very high power and require a narrow beam.
In fact, our LED lighting is more popular in road lighting applications. But at the crossroads of roads, high pole lights on overpasses or traditional lighting fixtures dominate the mainstream market.
Ye Shanghui believes that “the first thing to consider for professional lighting is optical design, because the higher the space height, the higher the requirements for light distribution. It is necessary to design smaller angles, more precise light distribution and smaller volume lighting products. This puts higher demands on the size of the light source, the density of the light source, and the luminous flux."
Indeed, because of the height reasons, the convenience of maintenance has to be considered, and the cost of maintenance raises higher standards for the reliability, service life and light decay of the luminaire. In addition, the replacement of new products has higher requirements on cost performance, and the cost performance needs to be based on high quality.
The combination of materials, packaging, heat dissipation and optical design can achieve perfect matching and quality, and only high quality can bring high added value.
From the perspective of optical design requirements, the small size of the light source can meet more light distribution design, meet the ground illumination requirements, reduce external light and glare.
"The control of the spillover light also causes the light output of the light source to be wasted. In response to this problem, we are effectively controlling the entire illumination to reduce the light pollution and improve the light pollution." Ye Shanghui proposed.
In addition, Ye Shanghui admits, "High reliability In high-power applications, the reliability of the lamp does not represent the reliability of the lamp. On the one hand, in the application of the whole lamp, the thermal management design of the light source needs to ensure the reliable heat dissipation of the light source. On the other hand, the degree of protection of the structure of the luminaire will also affect the light source, and the weather resistance of the light-transmitting material will also affect the life of the whole lamp."
Nowadays, many customers do not form a consensus on the temperature of the radiator. In fact, it is difficult to have a criterion. The heat sink is not equal to the lower the temperature. The key is that the temperature of the light source is not low enough, and the temperature difference between the light source and the outside of the radiator. Is it big.
In response to the high-power packaging problems of the above industries, Zhongke Core Source is the first in China to adopt the transparent fluorescent ceramic K-COB packaging technology.
It is understood that the technology has completely independent intellectual property rights, breaking the monopoly of patent technology in Europe and the United States, and standing at the top of the LED packaging industry chain. At present, this technology has completed 5 international PCT applications, more than 30 patents, and obtained a number of invention patents, and has achieved global patent layout.
As the only LED technology transfer base and industrialization platform of the Haixi Research Institute of the Chinese Academy of Sciences, Zhongke Core Source has many invention patents for preparation, materials, packaging, white light and heat dissipation. With the patented core technology of fluorescent ceramic packaging, it focuses on industrial lighting and road lighting. Ultra-high-power professional lighting market in four areas of outdoor lighting and special lighting, providing application manufacturers with integrated solutions for light source and heat dissipation.
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