作者：Blade

rgb led light bar and light solution

The initial resolution of the imaging device is quite limited, the image quality is poor. But as technology evolves, the resolution 300,000 pixel VGA grade progress to 100-2000000 pixels and quickly toward the more than 3 million pixels of resolution level forward. Continued improvement in imaging devices, processors and software, consumers now want to get more digital camera functions, such as the flash in low lighting conditions, even automatic focus. In this resolution, good quality output as well as pictures and video sharing becomes more practical, these higher-density CMOS imaging devices need to get more reflected light from the target, thus further promote the needs of the integrated flash function.

rgb led light bar and light solution

To the traditional Xenon flash placed into a fairly compact size of the phone challenging design engineers, because the thick flash high-voltage capacitors must also be coupled with the bulb and the associated transformers and electronic circuits, while the traditional The flash does not apply to the use of video capture. Fortunately, LED manufacturers have started to improve through the use of new materials such as indium gallium nitride (InGaN) and other power LED lights output.

On the other hand, semiconductor manufacturing technology innovation and package improvements can produce the number of lumens, and photoelectric conversion efficiency. To generate the highest light output, power LED requires 400mA or higher, and pulse width in the current output capacity from 50 to 200ms. However, for video applications, you need a smaller current, but time is not limited to a single pulse. In addition to size restrictions, and ergonomic considerations, these camera modules usually integrated in the rear or top of the screen, so that users can use the LCD as a viewfinder grab image, which is particularly common in the folding mobile phone. Imaging device and the lens bodies may also have to be able to rotate, so that the phone can be face-to-face communication tools as video conferencing mode, is expected to be more common in the design of the 3G network phone because there is enough bandwidth can be used in video conferencing.

Discussion of these trends can be clearly seen become more and more high quality and resolution of the screen display, while the size is also growing, in particular, is a feature-rich multimedia mobile phone is expected that the future will more and more more content such as streaming video or broadcast video, Internet browsing and e-mail, camera and photo viewing, as well as games and access to information services. Therefore, when the phone screen to use when no call more frequently, but if the phone’s battery life is not enough, these functions will be limited. Therefore, the high efficiency of the system power management, including the screen and button backlight power management becomes very important functions such as camera flash past, only to see the high-end phones will gradually become the standard configuration.

These will also have a white LED backlight driving circuit design challenges: bigger screen represents a more regional need backlight, it is necessary to enhance the overall efficiency of the drive device; due to limited space, it must be integrated in a single package multi-function; not only consider the size, the thickness must be reduced, in particular, sliding and folding the shape of products.

Phone white LED tubes driver circuit is frequently used in the two architectures: LED is connected in series inductor boost converter circuit; each LED stable current source to drive the charge pump drive. The inductive solution can bring the best overall efficiency of the charge pump due to the use of small ceramic capacitors as energy conversion devices, the smallest. Figure 1 and Figure 2 shows the typical application circuit of the two driven architecture. At present, the power LED efficiency continue to be improved, reducing the power consumption of the backlight LED, it can provide higher light output with less of the LED. This means that two or three years ago, four LED backlit 1.5 inch screen, now just two power only half of the LED will be able to get the same performance.

To meet this demand, you need one capable of driving two LED new products such as led flood lights, and can support a very low current low-power standby operation of the backlight of the screen. To solve this problem, NCP5602/12 series of charge pump LED driver devices designed to support ultra-low current ICON mode, while the simple single-wire or I2C serial bus provides two LED ordinary backlight. In addition to support for the latest thin and light package trend, these products are designed using very thin LLGA micro packaging technology (2 × 2 × 0.55mm) to support the ultra-thin applications. In addition, part of the improved LED materials and design has a lower forward voltage (reduced from 3.6V to 3.1V), inductive solution, the same power that can drive more LEDs. More complex LED drive device, such as NCP5604A / B has a voltage conversion mode select, provide optimal power conversion at the same time lower power consumption of the integrated current source, the lithium-ion batteries used in mobile power supply most of their working time to reach 85% conversion efficiency (PLED / Pin).

LED flash camera phone configuration, this Semiconductor has developed the NCP5608 multiple-mode charge pump LED driver, which drives four LEDs for the backlight of the main screen and sub screen, and is provided to drive 1W power LED up to the high current output of 400mA. These features are designed to share a high-efficiency charge pump converter circuit, in order to minimize the number of external capacitors.

The third development trends of the led lighting design industry

Trends: continued to promote green led lights, environmentally friendly lighting

Professor Zhan said that the moment of led lighting design needs to pay attention to the problem of energy efficient, that is environmentally friendly lighting. Architectural led lighting design standards, which clearly defined the unit of space lighting power density design and planning, the efficacy of the lighting load per square meter beyond the rules and regulations formulated by the illumination, this design case of excessive energy consumption, which can not pass. In this regard, the lighting designer need to choose the light-efficient lighting equipment, or change of lighting to achieve the required standard.

led lighting design

However, the rational use of efficient light source, the practice is not easy to achieve. Such as rural areas, landscape lighting does not need light, but local leaders will be asked to “highlight”; in the bright environment of the downtown commericial street, and there will be ” comparisons of light”. Many small towns, the business district at nigh, often as a city that never sleeps. In fact, this is an abnormal development of led lighting design.

Therefore,  excessive landscape lighting caused a huge waste of money and energy. As this phenomenon is still relatively common, Zhang professor called on designers to adhere to the road of energy efficient efficient lighting, which is very meaningful.

Trend: Made in China should be among the high-end R & D centers

For domestic lighting industry, Zhang professor stressed that lighting products produced in China in the number of the largest in the world, but the quality and the ability of independent innovation and R & D needs to be improved.

Project of the Beijing Olympic Games, Asian Games in Guangzhou, China’s LED business performance is remarkable. However, the advanced international level, there are still huge gaps in product performance and technical aspects. Because these two items on the lighting technical standards and product quality is very demanding, many of the lighting project are dominated from abroad.

At present, the competitive LED lighting manufacturers are very less. The main reason is the gap between research and innovation; The industry as a whole is less favorable environment which is not conducive to the healthy development of enterprises; investment scale and the poor is too large; In addition to the disadvantage of the patent. How to enhance the corporate brand image and enhance the corporate brand image and enhance the design and development of force. That will be the key to improve the overall strength of the post-Olympic era in China’s lighting industry.

The second development trends of the led lighting design industry

Trends: designer guide lamps instead of lamps to guide designers.

Perhaps the vast majority of lighting professionals agree that 2010 is a massive attack on the traditional lighting of the year for LED industry. It is no doubt that LED products are excellent. However, any lighting project, priority LED products, which has become the beginning of the bottleneck of many designers career.

led lighting design

In this regard, the point of view of the surface of the smoke is a reasonable choice of light source according to the lighting quality requirements.

He pointed out that current lighting acknowledged a confusing phrase: a city with a different partition, you can use different lighting to show the different effects. Cultural district in the city reflects the precipitation of a historical business district needs to be pretty bright, LED lights, and the rational use of neon, make cultural precipitation and flavor of the times each to shine and complement each other.

There are a lot of designers like zoned for the prison, thinking that LED is designed for the”shiny” and “brilliance” and “technology” born. In fact, the only designer master the use of appliances, led lighting design is to achieve development by leaps and bounds.

LED changes to use, the American designer has done lighting design for the Tokyo Ginza Chanel is very good case.

The original American lighting designers find Ginza building brighter and brighter than another, so they decided to adopt the idea that “all others are bright, while I am lonely dark. Abandon the LED bright colors, using only black and white two colors, the night, the LED tube will be to create a classic Chanel totem. In the eyes of tourists, the Ginza is very bright, but the building is very dark; Other building is a dynamic flashy, the building is gentle classic.

Whenever the development of productive forces can not control the new tool, the relations of production will be a problem, the output also non-human wish. Presumably, in theled lighting design industry to comply with this rule.

It comes to rapid development of China’s lighting industry in 2010, one of the pioneers of the field of architectural lighting become attached to more than half a century of academic dean Professor Zhan Qing spin told reporters, after the storm of the lighting industry for decades. China’s lighting industry is bound to open up their own one day. The lighting designer should also pay more attention.

The development trends of the led lighting design industry

2010 was a bumper year of China’s lighting design. This year, the Government promote the demonstration project”ten city thousand lights”. The world-class lighting project, the Shanghai World Expo and Guangzhou Asian Games debut; This year, led lights power supply,  lighting designers in China than 10,000, Tsinghua University, Fudan University dozens of colleges and universities offer a led lighting design courses; This year, the scale of China’s LED industry is about to exceed 110 billion yuan, representing an increase of 30 percent over 2009!

led lighting design

However, China’s led lighting design still have many deficiencies-imperfect market order, large differences in technical standards, severe light pollution and many other issues from time to time emerge;” experts refer to certain business district business district seems to light the garbage dump, poverty-stricken countries of Jiangsu spent million to build a world-class lighting project, the residents that night street lights like a day”articles are frequent newspaper. For doubt, five expert opinion pointed out that the lighting design industry, the next step in the development of the ten trends.

The surface of the smoked: Chairman of the Japan Association of led lighting design, a well-known led lighting products designer

Japanese design has never been compatible with the sense of form and function to win from their landscape and buildings, revealing the beauty of an warm. Japan’s famous lighting designers face the smoked lights, shining advantages.

Trends: designers should be good at the role of transposition, add the humane thinking

Crowned by the lighting industry a number of honors was the smoke that: Lighting design is not just the times the surface of the consumables, but on Earth the diversification of the various places “on the basis of the light culture. Excellent lighting designer should be familiar with this principle, lighting rendering “people feel comfortable” environment.

So, life in order to feel happy and “light design” what is it? On this point, a smoked surface as a lighting designer revealed the artist’s side: the light is directly on the person’s inner world impact, should have a better than a work of art moved, so that the sadness of the people’s hearts are cure, and more emphasis on moderate excitement, and physical and mental illness battle.

Talked about the lighting industry in China “exports and domestic sales”

The industrialization in developed countries has been completed, the process of urbanization in city has apparently slowdown. Habitat plain near consumer has entered the service sector, the basic stability of the demand for lighting products. However, the pace of mediation of industrial structure in developed countries did not stop. Some labor-intensive industries continue to make substantial transfer to developing countries(view led lights), making a difference in the degree of developed countries, domestic coherent industry supply some landing lighting industry products for the Chinese to go abroad create a certain market space.

lighting industry

Lamps exports: for example the 2010 Guangdong Zhongshan lighting

In 2010, Zhongshan lighting value of exports reached $ 1.348 billion,  ranking the biggest this year, an increase of 37%. Zhongshan, electric light and lighting are the main exports to other regions like Europe, USA, Middle East and ASEAN, the EU and the Zhongshan lamps largest export market, export value reached  $ 325 million.US market growth rate ranks the first of four major export markets last year, Zhongshan exports to the U.S. $ 300 million, an increase of 41.5%. The rapid growth of emerging markets, last year, lighting exports to Africa, South American market increased by 107.8% and 78.6%, coming from behind the revival of the Russian market, and increase of up to 72.3%.

On the category of export lamps, LED products increased three times. Last year, LED products, exports of about $ 42,923,000, an increase of 344%, indicating that the LED technology speed up application speed of the electric light and lamps, replace some incandescent and energy-saving lamps needs. At present, Zhongshan has formed a major lighting manufacturers for nearly 20 annual export of over a hundred million, of which some enterprises gradually opened up to Europe and the United States and other high-end market to high-quality products, but most enterprises on an OEM basis to participate in the international division of labor. Thus, the export situation of the entire lighting industry is showing an upward trend of the straight line.   Lighting export enterprises in 2011 is not difficult to see the light.

With the upgrading consumption ability of domestic products, Southwest, Northwest, Northeast and other places have great demand in modern lights. Local consumers with the lighting of the modern style have a lot of stress, which will promote the new type of light source lighting products. The future outlook of domestic lighting industry market is very impressive.

Simple and practical home lights are the king

In recent years, driving by the property market, Lighting consumption develop to the energy conservation, overall development of intelligent, professional lighting store, lighting store are rising. Lighting product design shows a variety of personalization trend, crystal home lights, children’s lighting, creative lighting, all kinds of lighting ranging. It is gratifying that, in the pursuit of individuality at the same time, more and more lighting products began to focus on energy efficiency, green lighting concept has been  the unanimous approval of the businesses and consumers.

home lights

Simple lighting is the more popular one

The person in charge of a dealer Miss Yu said, appliance lighting business in 2010 are off season compared to the previous light. She believes that the biggest reason is the decoration people is relatively few. Qingyuan property prices may be inflated, and invest more.” Some people have two or three suites, actually, they can not live so much, so mostly they invest.

Secondly, lighting shop are getting more and more, competition is intense lighting design style, type of update soon, a shop can not cover every style, competition is inevitable. “Miss Yu said, as a brand to ensure that business still have certain advantages. Such as after-sales service, factory support.

In another aspects, in the product application, simple is the mainstream of lamps in the market. Miss Yu introduced, “the Op products has  always been a concise, easy to clean and more popular.” The modern lamps are in the “light up” to “pretty up” transition, focusing on the decorative and aesthetic effect of the lamps. Many consumers do not like complicated decorations. “Simple is not simple, but taste, simple lighting can better reflect the taste of home.”

LED lights entered the home lighting

With the popularity of green lighting, energy efficient lighting market is more open. At the same time, consumers can largely accept the energy-saving lamps. “Our energy-saving lamps sold well, consumers are aware of the benefits of energy-saving lamps. “Miss Yu introduced, in addition to the ordinary energy-saving lamps, LED home lights are gradually getting popular. If the 2009 is LED landing home lighting “signs of the Year, 2010” Try the year, so 2011 is likely to enter the year.

How far does the gap between reality LED lighting market and the ideal one?

Incandescent will be eliminated, and energy-saving lamps are emerging, LED lights are in the ascendant, but the industry on the LED lighting market prospects and rashness. It is based on LED prospects promising, from the international semiconductor giants to unknown small factory. Some insiders jokes that now is not involved in LED ashamed speaking of the lighting industry.

LED lighting market

However, the industry’s lighting market outlook is very rashness, more concentrated in low-end market, a conservative estimate of 3 yuan of each incandescent lamp. The world’s 2 billion stock market, but six billion; 10 billion energy-saving lamps of 20 yuan but 200 billion, while the high-end intelligent LED lighting market, the report estimated that the capacity will reach $ 200 billion in five years.

The data show that the lighting energy consumption accounted for 22 percent of the world total electricity consumption is green lighting. The significance of 80% power consumption can be reduced from incandescent to energy-saving lamps. When the replacement completed, the global LED lighting market energy consumption will be reduced according to 17% of current NXP chip used in energy-saving lamps of 60 million, equivalent to an annual reduction of 500 million kilograms of carbon dioxide, and future sales is expected to expand 10 times and 20 times, saving significance is enormous. Criticized by the world energy-saving lamps mercury pollution, in fact, there is a great misunderstanding. On the other hand, energy-saving lamps mercury contamination does exist. However, many natural areas have mercury pollution, the relative energy-saving lamps talk about mercury discoloration. Study have shown that the mercury in a energy-saving lamps are less than a marine fish such as salmon sharks.

Right now, International semiconductor giants basically has embarked on the LED layout, NXP already has a chip by 70 005 thousand hours, 105-degree heat of the experimental test, which is the world’s first application-level LED chips, and its SSL2101/2102 since 2009since May, has sold 10 million in May this year, sales momentum, Jin Meng, more than dozens of well-known companies have for dimmable LED bulbs. Which SSL2102 International Lighting Fair in Las Vegas in May 2010 Technology Innovation Award.

For the heat problems that LED lamps designed. Although there has the fan, open and  short-term solution, yes solving the fundamental direction of the LED application is to improve the light efficiency of the same upgrade. LED is also a semiconductor, subjecting to Moore’s Law. The performance will be greatly improved on a regular basis. Talking about the LED market applications, some people think that the direction should be intelligent, innovative lighting.

Cooling design of high-power LED tunnel lights

LED is a type of photoelectric devices. Take the existing most advanced high-power LED chips for instance, the conversion from electrical energy to optical energy is only 15%-20%, far less than the requirements of most industrial applications and commercial applications. The rest 85%-80% energy will be transformed into heat, keeping LEDs in an over-heated state. That is the reason why most high-power LED lighting products have relatively short service lives. On the other hands, the luminous flux (lumen output) of LED lights will be reduced with the increase of PN junction temperatures. Thus an incompetent cooling design may dramatically cut down the lighting effect and working time of high-power LED tunnel lights.

 

Thus an incompetent cooling design may dramatically cut down the lighting effect and working time of high-power LED tunnel lights.

 

Currently, there are three major solutions for cooling technology of high-power LED tunnel lights: 1) natural cooling. Adding fans/ventilators and heat pipes/sinks to assist cooling. Natural heat dissipation is base on natural convection and thermal radiation, reliable structure, waterproof, but strict in the structure design, cannot be easily handled. Normally, the practical effects are far less than the theoretical results. 2) Mandatory cooling through fans/ventilators on the base of forced convection. This method can provide a much faster cooling effect, but generate more noise and cost a lot, hard for waterproof. 3) Mandatory cooling through heat pipes/sinks. This technology takes the use of heat pipes to conduct unwanted thermal energy to heat sinks/pins to realize a rapid thermal dissipation. There are no other motion compartments and the entire system is more stable, but correspondingly cost a lot.

 

Different from ordinary roads, tunnels have many special properties. Mandatory cooling with the help of heat pipes and heat sinks would be the most suitable cooling technology for high-power LED tunnel lights among three. The vertical design of heat dissipation channel can realize the modularization of cooling section. Normally, high-power LED lamps using this cooling method can maintain a working temperature below 70℃, keeping LED chips working in a stable low-light-attenuation state, improving the maintenance factor to save more maintenance costs.

 

According to the airflow characteristics within tunnels, scientists usually made asymmetry ventilation designs, ensuring the air convection cooling. Meanwhile these asymmetry designs also can reduce the mass of soot and other pollutions generated by vehicles to enter the cooling chamber. These dusts may probably absorbed by cooling devices and reduce heat dissipation effects.

Global emerging markets in all lighting are very active

Since 2008, the U.S. and European markets influenced by the financial crisis, so the demand decreased. The importance of global emerging markets are also increasingly subject to the attention of manufacturers: South America and South Africa in recent years. The rapid development of the Middle East market has large demand for low-priced products. In addition, Russia and Eastern Europe is also a potentially large market, many companies have also demonstrated the interest of Russian and Eastern European markets.

Global emerging markets in all lighting are very active

Indian market, India is 80% all lighting products imported from China in the Indian market, the LED lights outdoor use huge space, while the Indian Government is considering the traditional lighting systems for environmental protection and energy saving LED lighting system, which is expected to LED lighting market in India. The growth rate will reach 41.5 percent, and continued until 2015. In South America, Neo-Neon since last year already and gradually increase to expand efforts to develop LED lighting market in South America, led by Brazil. The first LED tunnel light project in the city of Sao Paulo, Brazil’s central city of Neo-Neon Group’s Silver Rain Lighting do the tunnel Ayrton Senna throughout South America’s first highway LED tunnel lighting, which is the landmark projects for LED lighting applications in the tunnel and highway.

In the South African market, there are Chinese enterprises active figure. Zhang Qingyu, NVC lighting Vice president, said that South Africa has become one of the NVC sales overseas markets. In South Africa, NVC dealer business model matures. Right now, the key distribution channels, specialty channels, modern supermarket channels.

Take the Middle East as an example, UAE and other Gulf countries are in a period of economic prosperity, retail, trade and real estate development has led to demand for all lighting, and other areas of Dubai and the UAE population growth has also led to development of the lighting industry.

In Russia, the Kremlin theater lighting project is one of the Shenzhen Mason representative to participate in the global market competition. This prestigious Ballet Theatre “Swan Lake” by Russian Prime Minister Vladimir Putin personally wrote an inscription, called the world”s most elegant theater one. Party on the theater scene design requirements are very harsh. And layers of rigorous testing and screening, Mason eventually stand out from the many international brands.

White Ray will become the mainstream of architectural LED lighting industry in 2013

It is estimated that the compound annual growth of LED lights industry in Europe is around 38% in next five years, which is the second fastest growing mature market after Japan. Topping the lists were architectural LED lighting (45.8%) and commercial LED lighting (39.2%) due to the price-carelessness and quality-chasing of customers in these two fields.

 

 

White Ray will become the mainstream of architectural LED lighting industry in 2013

 

It is showed by European LED lighting market research report (2011-2015) that the total size of the global architectural LED lighting market is about 3.191 billion USD, accounting for approximately 29% of the overall LED lighting market. Europe, as the prime market, will occupy more than 35% of the global LED lighting market, with an estimated market size of 1.12 billion USD.

 

The multi-color property of LED chips made most business organizations in Europe more willing to spend money on colorful lighting design to promote the cultural and tourism value to attract more visitors.

 

In the past, RGB lighting products were the mainstream in outdoor landscape lighting and indoor decorations. Not until 2011, LED demands were far exceeded by supplies, making the ASP of high-power White Ray LED lighting products dropped by 35-40%. Architectural LED lighting manufacturers started to use White Ray LED lamps. With the rapid improvement of White Ray lighting efficiency and the sharply dropping of prices, it is estimated that by 2013, White Ray will take place of RGB/Color become the mainstream among architectural lighting applications.

 

According to the recent research results, our country has six giant production bases for architectural LED lighting currently. In the first half of 2011, China has put more than 30 billion yuan in LED lighting industry, in which architectural lighting took up 30%.

 

However, the rapid growing trend also brought in disadvantages: the “vicious competition” between companies will weaken the digestion capacity of the market, or even worse, destroy the new-built confidence of this emerging market. Customers’ trust can be easily seriously injured by low-quality products. Once failed to obtain sufficient recognition from market, it is very easily for a new-born industry to be at a virtual standstill for many years. Experts suggested that, before developing architectural LED lighting, government and giant LED enterprises should and are responsible to establish a uniform standard to keep from a potential market chaos.