作者：Blade

LED airport lamps: a new area for LED lighting applications

Compared with traditional lighting technologies that used in airports, LED airport lamps dramatically reduce the power consumption and maintenance costs. The LED airport lighting system has been put into use for several years. Manufacturers received positive feedbacks in the aspect of visibility, duration and performances. Via technological improvements and FAA (Federal Aviation Administration)’s endeavors and guidance in promoting LED airport lighting technologies, the compatibility issues have been largely improved.

 

Compared with traditional lighting technologies that used in airports, LED airport lamps dramatically reduce the power consumption and maintenance costs.

 

Most of airport lighting systems are initially designed for incandescent lighting technologies. Therefore, new LED airport lamps could not be compatible with them. However, by replacing part of the electricity infrastructure and replacing incandescent lights by LED lamps, the energy efficiency and reliability can be increased greatly.

 

Although the production cost of LED lamps is much higher than that of incandescent lamps, after several years’ using, the saving energy consumption and maintenance cost will bring back rewords. The maintenance cost of LED airport lighting system will be much lower than that of incandescent lighting system.

 

Light-emitting Diodes (LEDs) are more and more widely used in security-related occasions, including evacuation signs (Boyce 1994), road traffic signs (Conwayand Bullough 1999), automotive brake and turn signal (Olson 1987), street lighting (Radetsky2010) and airport lighting applications. LEDs’ characteristics made these lamps are rather popular in visual signal applications.

 

Currently, most of airports are still using incandescent bulbs, the service life of which is much shorter that of LED lamps. The standard lifetime of incandescent bulbs is around several thousand hours (Bullough 2000), while the average lifetime of LED lights can reach up to 50,000 hours. In the meanwhile, LED lamps have higher luminous efficiency (lm/W) than that of incandescent bulbs and consume less power. Due to the over-low light efficiency of incandescent lights, the launch of EISA in 2007 speeded up the process of replacing incandescent lighting products with other lighting technologies. The launching of EISA did not directly affect airport lighting projects, but with the acceleration of incandescent lights’ elimination, LED airport lamps became a hot topic recently. However, the compatibility problem may be the biggest obstacle for the widely using of led tunnel light in airports. Besides, the narrow bandwidth of LED waves means that they cannot generate infrared rays, which are helpful in ice melting in cold days.

Organic EL lighting applications: more powerful in luminous efficiency

Mr. Tian Yuansheng from Organic EL Lighting gave a speech on “OLEDs World Summit 2012”, he said that: in theory, the luminous efficiency of organic EL is the same as that of LED lighting technology. However, organic EL lighting applications have much higher efficiency, which can improve the luminous efficiency of the entire organic EL lighting products to 249lm/W, which is no doubt the highest luminous efficiency lighting technology in the world presently.

 

Organic EL lighting applications: more powerful in luminous efficiency

 

According to his introduction, the theoretical boundary value of luminous efficiency of white organic EL components is around 249lm/W at 4000K (single light-emitting construction), and 184lm/W for series construction. The theoretical boundary value is a laboratory data that based on the assumption of 100% light-extraction efficiency and 100% external quantum efficiency. The luminous efficiency of white-ray LED lighting components is around 260lm/W. If using single light-emitting construction, organic EL lighting applications can have a similar luminous efficiency as white-ray LED does. Organic EL is also named as organic LED, OLED. They have much similar light-emitting principles as LED. From this point, there is no doubt that these two technologies have much closed luminous efficiency.

 

Among all organic EL components that produced, some of them are closed to 100% in internal quantum efficiency, but with a light efficiency only 60%.

 

In the comparisons between LED and organic EL, Mr. Tian Yuansheng indicated that: “Even using the current organic EL technology, the luminous efficiency of the lighting equipment can reach the level of LED lighting applications. According to ‘DOE Multiyear Plan’ a technical report for LED technology issued in March, 2010 by Department of Energy (DOE), before 2009 the luminous efficiency of LED lighting products is only 32.3% that of led tunnel light sources.” This is quite normal, since exposed light sources will cause damages to human eyes. That is the reason why most LED lighting products are covered by frosted covers. Diffusion plates and other protective shells will reduce the luminous efficiency inevitably. However, in most cases, organic EL components can be directly used as lamp in organic EL lighting applications without any protective covers. Thus, usually the luminous efficiency of organic EL lamps is quite closed to commonly used LED lamps.

The real states of LED industry: cheap copies cover the street

Recently, an announcement from SFT and Maile Si attracted the attention of many people. Leave aside the fact that the former has finished the regular process of litigation, the later was legally responsible for the infringement. With the gradual penetration of LED lighting products in the terminal market, in the see-saw battle of infringement and rights protection, the crackdown has been pushed to the cusp of the LED industry.

 

Recently, an announcement from SFT and Maile Si attracted the attention of many people.

 

Zhongshan City is the one of the most famous places for lighting applications in China. More than 4000 lighting shops gathered here, fluorescent lamps, incandescent lamps, energy-saving lamps, HID, HPS, you can find almost every existing lighting technologies here. It is said that Zhongshan City is the “weathervane” or “barometer” for the lighting industry, which will totally reflect trends of lighting applications.

 

With the development of LED lighting technology, a large number of merchants started to promote LED lamps. LED Down Lights, LED Spotlights, LED Strips, LED Wall-washer, LED Panel Lights, LED Ceiling-mounted Lights, etc.. You can find almost every model in the LED industry here.

 

However, wide variety is a fuse for cheap copies. “Take MR16 for example, in order to avoid cheap copies, we have recently developed a new 4W model, which is unique and difficult to copy. But what’s the end? We found similar products in the market one month later. Only one month. Cheap copy is completely inevitable.” Said Mr. Zhou Jiaxiang, the chairmen of Loyal Lighting.

 

According to the related data, with the gradual increasing recognition and acceptance of terminal users, the domestic LED indoor lighting market presented a significant growth trend. In the first half of this year, the output value of LED lights grew nearly 36%, in which 50% came from LED indoor lighting applications.

 

In the meanwhile, the competition is fierce in the LED lighting market. Since the first half of 2011, nearly 1800 new LED companies were set up in China. 1000 of them are manufacturers for indoor LED lighting area.

 

“Indeed, the led tunnel light market is growing, but the number of manufacturers grew as twice faster as the LED industry did. Most of them were lacking of core technologies and money. They had to start with imitation or even copy. The market is so big, hard to regulate.” Said Mr. Ma Shoufeng, general manager of Long Lighting.

LED lighting industry has entered into the “crazy times”?

The 2008 Beijing Olympic Games completely fueled LED products. The site of the “magic picture” on the opening ceremony attracted the attention of the world, bringing them the magic charm from LED lighting technology.

 

The 2008 Beijing Olympic Games completely fueled LED products. The site of the “magic picture” on the opening ceremony attracted the attention of the world, bringing them the magic charm from LED lighting technology.

 

At present, more than half of the core technologies and patents in the LED lighting industry are concentrated in the United States, the Europe and other developed countries. Our country was lacking of technologies and patents in the field of LED and also a unified standard. Besides, the price war, the quality variation, the vicious competitions from low-power LED lighting products and the lack of high-end products made the domestic LED market fell into a poor state of development.

 

LED is a kind of device that can convert electrical energy into optical energy. As the most-watched lighting source in the world, LED lighting industry has been marked as one of the country’s seven strategic emerging industries. Tremendous opportunities attracted capital from various quarters. According to publicly available data, there are more than 8000 LED manufactures in China.

 

The past six months, there are 8 domestic LED lighting enterprises successfully listed, and six of which has listed on GEM. On the other hand, in the past year, the domestic small and medium LED companies frequently closed down. In 2011, there are 80 LED lighting companies closed down in Shenzhen, and 10% small sized LED companies went out of business in other cities and regions in Guangdong Province.

 

It is worth nothing that as the flourishing domestic LED lighting market, more and more foreign enterprises shifted their attentions to China. Especially in recent years, the number of patent applications in the LED field increased significantly. In addition, from the point of view of industrial chain distribution, patents in the field of LED chip technologies and packaging technologies are mainly from Europe, North America and Japan.

 

Compared with other foreign companies, China’s LED patent applications were usually at a disadvantage. According to the Institute of Engineering LED industry’s survey, by the end of 2008, there were 26071 pieces of LED-related patents applications in China, most of which (more than 50%) were concentrated in LED mid-stream industries and downstream packaging industries. Only a few of them were from upstream led tunnel light chip core area.

After Japan, the United States will become the next super market for LED lighting industry

Although Japan’s LED bulbs shipments doubled in 2011, mainly due to the raising consciousness of energy-saving, the promoting speeded up among ordinary buyers. LED lamps have a much longer service life than incandescent bulbs, if used in ordinary families and 50 hours per week, a 40,000-hour LED lamp can maintain a normal work condition up to 10 years without any replacements.

 

After Japan, the United States will become the next super market for LED lighting industry

 

From the standpoint of the U.S. lighting market, in 2012, local hydropower firms launched Rebate issues for LED bulbs, LED tubes and other LED lighting applications. Products must have Energy Star certification or DesignLight Consortium certification. Rebates can increase the purchasing desire of consumers, making them more willing to replace their old lighting devices with LED lamps. In fact LED lights provide them better lighting environment and save more power. Since 2012, the number of LED commercial lighting application makers inclined stably, causing the sharp price dropping. Plus the prosperous in the commercial building industry, LED lighting industry developed rapidly in the commercial area. On the other hand, the Lighting Design Alliance set out specifications and requirements for 4-foot tubes. As a result of the prosperity of LED lighting industry in the commercial area, the United States will become the next super market for LED lighting applications after Japan.

 

In the first half of 2012, the standard case progress of China’s LED lights was less as expected, mainly due to the undecided financial subsidy policies. Besides, the debt crisis exerted a bad influence on the global market, heavily hitting LED producers and exporters. Looking ahead to 2013, the financial subsidy standard case has been drawn by the three ministries. It is expected that from the end of 2012 to 2013, the China’s Government will allocated 1.6 billion yuan on LED lighting industry, which will eventually drive 4 billion yuan scale LED lighting market demand.

 

As lacking of local infrastructure, only large led tunnel light enterprises, like Philips and small LED manufactures would like to enter this emerging market. Project lighting matched with portable lighting applications. Energy generation and energy storage drove up and became new industries, meeting the humanities and environmental needs. In addition, how to change the situation of lacking of core technologies, get rid of low-level redundant construction is the crux of the problem faced by the LED lighting industry in China.

Low-power products will become the mainstream in the LED packaging market in 2013

According to a recent report of TrendForce (the international research institute) about the LED packaging market, by the end of 2012, the estimated output value of LED package used in LED lighting applications is approximately 2.66 billion USD, growing by 23.5% compared with 2011. LED package used in the architectural landscape lighting applications (LED Flood Lights) and interior lighting applications (led tunnel light Bulbs) accounted for the highest proportion. However, under such circumstance, prices of LED packaging products were falling continuously. International lighting markets have been gradually opened as a result of advance import and price incentives. From the standpoint of global LED bulb market, the average selling price of equivalent LED lighting technologies for 40W incandescent bulbs dropped to around 10USD in Korea, the United States and the United Kingdom in 2012, which increased the buying intentions of consumers.

 

Low-power products will become the mainstream in the LED packaging market in 2013

 

From the standpoint of LED packaging market, the reversion of LED specifications caused the sharp reduction of LED lighting production costs. In the past, high-powered LED lights dominated the LED lighting application market. However, when 5630 packaging technology was introduced, mid-powered LED lighting products started to swarm into the market. In fact, high-powered LED packaging techniques lack of competitiveness compared with 3014 and 5630 packaging in the LED packaging market. Currently, high-power LED lighting applications are facing with excess production capacity problem. It is expected that may upstream LED suppliers will continue to increase the investment of low-power LED packaging industry. In addition, low-power LED lighting applications still has 20% price cut in 2013.Thus, it is believed that low-power LED chips will be dominated in the competitive LED bulbs and LED tubes market in 2013.

 

From the standpoint of the terminal LED lighting market, according to related industrial report, the demand for energy-saving applications brought about by the earthquake in 2011 significantly enhanced the consciousness of power-saving of Japanese people. Thus in Japan, people have higher level of recognition on LED lamps and more purchase intentions, plus the dramatic price dropping, in 2012, LED lighting industry rapid developed in Japan. In the global point of view, compared with traditional lighting industries, the market penetration of LED lamps has reached up to 17.6%. This data is even higher in Japan, which is 30%-50%.

The special actor for evening party— LED creative lighting(luminous tree)

In the evening party for 60 Anniversary National Day, the LED landscape tree of “Light Cube ” acting area become the party.

The command deputy director Zhao Dongming said, “Light Cube” acting area, namely as the center of Tiananmen Square national flag, on its four sides are more than 4000 trees of light art ” luminous tree “.

These ” luminous tree ” is the LED creative lighting, a high-tech content. Every tree light and tree LED tube can transform 7 kinds of color through the computer operation.   ” tree ” height can also transform and swinging. More than 4000 performers stands in the ” tree “, holding the props ” luminous tree “, according to the director’s instructions.

The special actor for evening party--- LED creative lighting(luminous tree)

Half of the floats use LED display

Cambered LED display, mobile video playback, more vivid colors display … the 60th anniversary of mass demonstrations floats commonly used LED creative lighting display , it will be more watchable than the 50th anniversary of this display of technological innovation continued progress.

Floats Expert Group Leader Li Yuheng said in an interview with reporters, this year nearly half of the mass demonstrations that the floats used on the LED display device, while 10 years ago, only two floats fitted with this equipment.

Float manufacturing department Yuzhi had participated in the 50th anniversary of the floats LED display production work, he recalled: “I remember 10 years ago, only two floats fitted with LED–Radio and Television Department of the floats and the Ministry of Science and Technology of the floats. The most impressive is the Ministry of Science and Technology of the ‘science and technology which are primary productive forces’ floats,’ one ‘word is used LED display, when closely look at, it is the flowers ‘1’, and when seen from afar, it is a banner.

Yuzhi said, 10 years ago, It is such a simple device, in which the led tunnel light-emitting chip dependent on imports, this year’s LED display is not only a breakthrough restrictions on the shape, but also improve the brightness and clarity. The more important is the light-emitting the chips which are all made ​​in China.

Last year, the opening ceremony of the Olympic Games, a huge expansion volumes, the slowly rising rings are impressive. What they use is LED equipment. Yu Zhi said, this year the floats LED creative lighting screen forms will also varied, with video, text, and also with move and play video. “It can be said that, this year the LED floats represented our country in this field in the most advanced technology.

LED industry recapture glory for the 60th anniversary birthday gift

In the upcoming 60th anniversary of the National Day celebrations, the LED will play a major role. In order to create a festive, joyful and peaceful atmosphere of the National Day, LED create a bright and beautiful night, a tribute to the 60th anniversary.

led industry create a bright and beautiful night

It is understood that Beijing has built or renovated 21 energy saving and environmental protection night lighting landscape. These new and transformation of Landscape night lighting will have the first trial at 7:30 on the evening of September 14 lights to show the colorful, beautiful night in Beijing.

LED industry recapture glory for the 60th anniversary birthday gift

Currently, Beijing’s night lighting basically formed city night landscape lighting system. The new night Landscape lighting system in Tiananmen Square is as the center of the main line to the north-south axis and east-west Chang’an Avenue, in more than 150 buildings along Chang’an Avenue, Second, Third, Fourth Ring Road and Fifth Ring Road over 30 overpass installed night lighting facilities, and formed over 2000 night lighting facilities, more than 200 night lighting attractions.

In the transformation process, technical personnel adopt with high-tech lighting products, and improve the lighting of Engineering Science and technology content. After the transformation, the Tiananmen area lighting saves significant in energy saving. According to the introduction, the Tiananmen square nightscape lighting energy saving is remarkable, the total power from 210.2kW down to 100kW, energy efficiency improved 5 percent. In addition, after the transformation of energy-saving lighting and greatly reduces the environmental pollution, in which the carbon dioxide emissions by 20 tons, sulfur dioxide emissions reduction of 0.8 tons. The effect of energy saving in led industry and emission reduction is equivalent to increase the volume of forest area 74.46 mus, effectively improve the environment quality.

According to the Beijing Municipal City Nightscape Lighting Department official responsible for the introduction, in order to meet the National Day 60 anniversaries, Beijing Tiananmen area lighting renovation, Tiananmen, the monument to red base, flag pole pedestal, Jinshui bridge, platform, Zhengyang gate. Tiananmen Castle red walls build a new lighting facilities on the basis of the original floodlights and led tunnel light, so it makes the Tiananmen tower walls more uniform brightness, red color, avoid glare produced on rostrum, improve the visual environment, and achieve the solemn, generous, magnificent, in order to reach beautiful effect.

Solar led lighting technology innovation

LED with low power consumption, the extraordinary life has been widely applied to the signal indication, digital display and other weak areas. However, due to the opening angle is small of the traditional LED street light source, dot area, the scattering of light is highly directional light source, so it is easy to form a spot light uniformity and other factors shackles its application in the field of led lighting technology.

Solar led lighting technology innovation

Laiwu City, Phoenix Solar Lighting Co., Ltd. technical staff of painstaking research, trial and error, by traditional solar lighting structure, intelligent controller, reflector lamp angle updates and technical improvements, the optimal tilt angle design, flat head and round complementary, making it more uniform light, the overall higher brightness, lower cost, more conducive to the application and popularization.

The company has developed the flat head LED pillar and torch-style combination of light source structure, through the reasonable control of the flat head high brightness white LED installation angle. LED combination of light emitted by the uniformity of the illumination light and illumination to be increased dramatically. The technology not only makes light effects to be strengthen, but also the combination of light energy is about 4W, and the brightness can reach 20W or 40W, and can be more effective use of solar energy. They Only need 12W solar cell capacity, 12V/24Ah the batteries to ensure that such LED light source in five rainy days continue to work effectively, and the useful life is more than 100,000 hours for more than 10 times of the energy-saving lamps.

The combination of light source is specially developed for street light field cross-shaped and rectangular combination of the light source, giving full play to the opening angle flat head led lighting technology uniformity and round LED panel lights point area of ​​high brightness, so that the two complements each other, in order to maximize the light efficiency, overcome the point area of flat head LED brightness as Round LED, round LED light uniformity as flat head LED shortcomings.

For the controller, to achieve the maximum collection use of solar photovoltaic technology, 12V DC power supply to the light source to provide the energy reserves, the battery, the light source produces a 6500K white light. At the same time, by streamlining the intelligent controller structure, the structure is more simple, lower failure rate, good technical preparations to further reduce costs. Moreover, by detecting the output of solar cells and battery power, thereby determining the system status, to achieve automatic control of the entire system and intelligent management.

Development prospects of green energy-saving solar LED lightings

World concerns about the security of energy supply and action to address climate change, to promote the rapid development of renewable energy technologies and industries worldwide, such as photovoltaic, wind power generation in the annual growth rate of more than 20%. Renewable energy has become an important alternative energy to diversify energy sources to address global climate change and achieving sustainable development. Especially in the recent two years, as the international oil price fluctuations as well as the Kyoto Protocol implementation come into force, renewable energy development become the hot spot in the field of international energy, and has been gained widespread concern in many countries of the world. By the end of 2006, the global renewable energy power generation installed capacity exceed 200 million kilowatts, including small hydropower of about 80 million kilowatts, wind electricity 75,000 kilowatts, geothermal power generation 10 million kilowatts, solar power generation more than 700 million kilowatts, solar photovoltaic average annual growth speed of more than a 60% of the production capacity of close to 2 million kilowatts.

Development prospects of green energy-saving solar LED lightings

Energy-saving advantages of solar led lightings

Along with economic development, China’s electricity for lighting will greatly improve, the research and application of green energy-efficient lighting gain more and more attention. Solar led lightings and led panel lights as a cold light source with a higher cost, green, safe, reliable, stable quality, long service life, easy installation and maintenance characteristics, green lighting, road lighting, advertising light boxes lighting, urban landscape modeling lighting and home lighting system can be widely used, but the higher one-time investment of solar led lightings is the bottleneck of the development.

Lighting consumption accounts for about 20% of the entire electricity. Consumption is an important way to save energy, and reduce lighting electricity. To achieve this goal, the industry has research and develop a variety of energy-saving lighting equipment, and certain results. However, the requirement is also far from the “green light”, the development and application of more efficient, reliable, safe, durable new street light is imperative.

By the end of 2006, China’s renewable energy capacity is totaled 200 million tons of standard coal (excluding traditional biomass), accounting for about 0.5 percent. For 2010, renewable energy accounted for 10% of the national total primary energy consumption, the goal has taken a solid step forward.