LED light source as a solid light source, with its long life (average life expectancy of more than 50,000 hours theory), high luminous efficiency (theoretical value is greater than 200Lm / w), more than a light color and light distribution function of directional light can be low in the security voltages can also be a continuous flash switch, can achieve 0 to 100% dimming, flicker-free light output, and many other advantages, a high efficiency of the new generation of light source trends.
Currently, low-power LED light source has been widely used in landscape lighting. High-power LED street lamp along with the application of semiconductor materials technology, the rapid development of increasingly sophisticated, industrial applications, the optical efficiency reached 70 - 80Lm / w, to reach 2.5-3 million hours of life has been gradually applied to the city road lighting.
Large number of enterprises, but the scale of billions of dollars of poorly
LED lighting industry related businesses of more than 3,000, of which more than 2,000 enterprise applications, on the scale of approximately 600 packaging companies, extension, and chip companies have 42. Although a large number of Chinese LED companies, but companies generally do not scale. Sales from 2009, China's LED industry sales of more than 10 billion few manufacturers with annual sales of more than 500 million yuan of only a few, the common enterprise with annual sales of hundreds of millions of sales of 1 to 2 billion.
Currently, LED packaging, LED display, LED lamps and other products to maintain good profit levels. In 2010, with the increased demand for LED lighting market, LED package to do, LED display enterprises have entered the field of LED lighting. China LED package on the market only very few number of companies, most companies have started to do packaging development and production of LED lighting products. LED applications has become increasingly blurred boundaries of the enterprise, the enterprise LED product line becomes longer.
However, our outreach materials, chip, packaging, the entire lamp development and other aspects of out of line, upper, middle and downstream industry chain integration is not in place, it can not form an organic whole, the domestic enterprises in the chip development process, chip packaging, and other core technologies there is a certain gap with foreign standards, which seriously hampered the development of LED lighting industry.
LED lights last two years with the rapid development of China, many companies began to engage in production and R & D, but the LED lights of varying quality. Most small businesses due to financial and technical limitations, the product has not been strictly optical, electrical, thermal and other aspects of professional design, or quality requirements for road lighting and lamps have no knowledge of light distribution, or use "used ism "copying someone else's product, or any combination of subjective imagination, arrangement; ... so the results from the testing and practical application point of view many problems. Currently, only a small number of enterprises to LED lights as their main business operations, strengthen scientific and technological input, the formation of independent intellectual property rights, and obtained a patent for the development of LED lights to make a contribution.
In addition, LED lights enterprises rely mainly on domestic projects stealth marketing channels, brand and channel dominance of semiconductor lighting products will eventually become the universal application of a large area one of the conditions, both brand and channel construction will also be deciding the competitiveness of key to development.
With light, heat, light failure to resolve the situation
To truly give full play to the strengths of the semiconductor light sources, LED optical system of secondary distribution of LED lights and optical light output efficiency is essential. At present, Ningbo Liaoyuan Lighting Co., Ltd. (hereinafter referred to as "prairie fire") LED lights with light design using two main options: one LED lamp with axial symmetry of the total reflection lens and reflector, LED lamp lens modules arranged in different housing position while using total reflection lens, to produce the required light distribution, the maximum possible increase the light use efficiency, the disadvantage is the arrangement of the LED module high-power LED thermal design and mechanical structure is too much trouble. The second option to a non-symmetrical free curved surface lens, with a single LED light directly from the optical components to complete. Just the whole lamp LED modules are arranged in a simple plate can be, this LED lights on the mechanical structure, thermal and power control is relatively simple, the different roads and different levels of road lighting pole height only need to increase the number of different The LED modules can be. Asymmetric free surface with the second optical element so that LED lights can be equipped with a single LED light module directly in the implementation.
LED light source is embedded in the use of lighting, high temperature causes the chip itself and the deterioration of resin performance package, which ultimately lead to reduced luminescence efficiency and shortened life expectancy, thus "cooling" has become the key to high-power LED street light technology. LED lights now use more integral, systematic concept of thermal design, application performance thermal conductivity material, such as aluminum die casting, aluminum extrusion heat sink DG, dentate integral heat sink, extruded aluminum profile radiator row , fin-shaped heat pipe length, the external tooth structure, nature of the flow of body heat, etc., as well as ultra-alloy heat pipes (thermal conductivity 100 times the speed of copper) and the combination of high-density aluminum fins heat. The chip heat rapidly from point sources into line source, the uniform distribution of heat to the heat sink.
LED light source is now common problem of light decline. Some manufacturers of LED lights installed less than a year to appear serious decay in brightness. LED lights will work into the light and heat energy, the component temperature rise for each 2 ℃, lamps reliability will be decreased by 10%, when the temperature rose to 74 ℃ 63 ℃ by the time, LED life expectancy will be reduced 3 / 4, chip packaging, heat lamps and other factors may cause light attenuation. Prairie heat on patented technology developed by the company, LED street lamps after 3,000 hours of continuous light, the light fades not more than 3%. After 35,000 hours continuous light, luminous flux reaches 70% of the initial luminous flux.LED light source as a solid light source, with its long life (average life expectancy of more than 50,000 hours theory), high luminous efficiency (theoretical value is greater than 200Lm / w), more than a light color and light distribution function of directional light can be low in the security voltages can also be a continuous flash switch, can achieve 0 to 100% dimming, flicker-free light output, and many other advantages, a high efficiency of the new generation of light source trends.
Currently, low-power LED light source has been widely used in landscape lighting. High-power LED street lamp along with the application of semiconductor materials technology, the rapid development of increasingly sophisticated, industrial applications, the optical efficiency reached 70 - 80Lm / w, to reach 2.5-3 million hours of life has been gradually applied to the city road lighting.
Large number of enterprises, but the scale of billions of dollars of poorly
LED lighting industry related businesses of more than 3,000, of which more than 2,000 enterprise applications, on the scale of approximately 600 packaging companies, extension, and chip companies have 42. Although a large number of Chinese LED companies, but companies generally do not scale. Sales from 2009, China's LED industry sales of more than 10 billion few manufacturers with annual sales of more than 500 million yuan of only a few, the common enterprise with annual sales of hundreds of millions of sales of 1 to 2 billion.
Currently, LED packaging, LED display, LED lamps and other products to maintain good profit levels. In 2010, with the increased demand for LED lighting market, LED package to do, LED display enterprises have entered the field of LED lighting. China LED package on the market only very few number of companies, most companies have started to do packaging development and production of LED lighting products. LED applications has become increasingly blurred boundaries of the enterprise, the enterprise LED product line becomes longer.
However, our outreach materials, chip, packaging, the entire lamp development and other aspects of out of line, upper, middle and downstream industry chain integration is not in place, it can not form an organic whole, the domestic enterprises in the chip development process, chip packaging, and other core technologies there is a certain gap with foreign standards, which seriously hampered the development of LED lighting industry.
LED lights last two years with the rapid development of China, many companies began to engage in production and R & D, but the LED lights of varying quality. Most small businesses due to financial and technical limitations, the product has not been strictly optical, electrical, thermal and other aspects of professional design, or quality requirements for road lighting and lamps have no knowledge of light distribution, or use "used ism "copying someone else's product, or any combination of subjective imagination, arrangement; ... so the results from the testing and practical application point of view many problems. Currently, only a small number of enterprises to LED lights as their main business operations, strengthen scientific and technological input, the formation of independent intellectual property rights, and obtained a patent for the development of LED lights to make a contribution.
In addition, LED lights enterprises rely mainly on domestic projects stealth marketing channels, brand and channel dominance of semiconductor lighting products will eventually become the universal application of a large area one of the conditions, both brand and channel construction will also be deciding the competitiveness of key to development.
With light, heat, light failure to resolve the situation
To truly give full play to the strengths of the semiconductor light sources, LED optical system of secondary distribution of LED lights and optical light output efficiency is essential. At present, Ningbo Liaoyuan Lighting Co., Ltd. (hereinafter referred to as "prairie fire") LED lights with light design using two main options: one LED lamp with axial symmetry of the total reflection lens and reflector, LED lamp lens modules arranged in different housing position while using total reflection lens, to produce the required light distribution, the maximum possible increase the light use efficiency, the disadvantage is the arrangement of the LED module high-power LED thermal design and mechanical structure is too much trouble. The second option to a non-symmetrical free curved surface lens, with a single LED light directly from the optical components to complete. Just the whole lamp LED modules are arranged in a simple plate can be, this LED lights on the mechanical structure, thermal and power control is relatively simple, the different roads and different levels of road lighting pole height only need to increase the number of different The LED modules can be. Asymmetric free surface with the second optical element so that LED lights can be equipped with a single LED light module directly in the implementation.
LED light source is embedded in the use of lighting, high temperature causes the chip itself and the deterioration of resin performance package, which ultimately lead to reduced luminescence efficiency and shortened life expectancy, thus "cooling" has become the key to high-power LED street light technology. LED lights now use more integral, systematic concept of thermal design, application performance thermal conductivity material, such as aluminum die casting, aluminum extrusion heat sink DG, dentate integral heat sink, extruded aluminum profile radiator row , fin-shaped heat pipe length, the external tooth structure, nature of the flow of body heat, etc., as well as ultra-alloy heat pipes (thermal conductivity 100 times the speed of copper) and the combination of high-density aluminum fins heat. The chip heat rapidly from point sources into line source, the uniform distribution of heat to the heat sink.
LED light source is now common problem of light decline. Some manufacturers of LED lights installed less than a year to appear serious decay in brightness. LED lights will work into the light and heat energy, the component temperature rise for each 2 ℃, lamps reliability will be decreased by 10%, when the temperature rose to 74 ℃ 63 ℃ by the time, LED life expectancy will be reduced 3 / 4, chip packaging, heat lamps and other factors may cause light attenuation. Prairie heat on patented technology developed by the company, LED street lamps after 3,000 hours of continuous light, the light fades not more than 3%. After 35,000 hours continuous light, luminous flux reaches 70% of the initial luminous flux.
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