Green and healthy lighting is the future development trend of lighting industry

It is estimated that with the global economic growth, the global street lamp market will show a year-on-year growth trend. In 2010, the global street lamp market will have a scale of 1.6 to 180 million baht. In China, LED street lamps used in the construction of green road lighting are attracting attention. According to statistics (LIRC), about 222,000 LED street lamps were installed nationwide in 2009. It is estimated that the installed LED street lamps will reach 1.12 million baht in 2009-2011.

In the ever-increasing market demand, only the enterprises that have mastered LED patents and technologies can guarantee the quality of the products and excel in various aspects such as performance. As one of the few lighting giants who have mastered patents and innovative technologies in the LED field, in recent years, Philips has established leading companies in the LED industry chain by acquiring Lumileds, TIRSystem, ColorKinetics, IltiLuce, PLI, and Genlyte. The leading position in the solid-state lighting value chain from basic semiconductor chips to packaging, to modules, and finished lamps. Now Lumileds is already one of the four largest chip giants in the world. Lumileds has established an undisputed leadership position in the world's high-power LED manufacturers, and has extended its leading position in automotive lighting, mobile camera flash, and other areas to general lighting.

This all-round leading LED industry chain also provides Philips with sufficient technology and market reserves for LED applications. At present, Philips not only displays strong advantages in road lighting but also in the research, development and promotion of LED products in the fields of home lighting, office lighting and commercial lighting.

The acceleration of the urbanization process has brought about a huge market demand for LED road lighting. The future sustainable development of the city needs to be characterized by high quality, green, and efficient LED road lighting products. In the process of urbanization in China going deeper, the "2010 semiconductor lighting fixture recommendation product competition" itself is undoubtedly the best encouragement for enterprises in LED lighting technology innovation. As a leader in the LED lighting industry, Philips Lighting will be driven by technological innovation.

Future Lighting Development Trend Energy Saving, Environmental Protection and Health is the Main Melody

Semiconductor lighting is a new type of solid-state light source lighting with light-emitting diodes (LEDs) as the light source, and has shown energy-saving effects in the field of professional lighting. Such as landscape lighting instead of neon, energy-saving 70%; for traffic lights instead of incandescent lamps, energy-saving 90%; and in the small and medium size backlight module (BLU) in place of cold cathode fluorescent lamps (CCFL), has been widely used. LED luminous efficiency is much higher than that of incandescent lamps. It exceeds fluorescent lamps and cold cathode fluorescent lamps and is entering the general lighting field that accounts for 15-20% of global electricity consumption.

Under the great pressure of global health, environmental protection and energy crisis, semiconductor lighting has been recognized as an important approach to healthy energy conservation and environmental protection. It is expanding its application scope at a faster pace.

First, health lighting

With the deterioration of the global environment, people increasingly pay attention to their own health, especially the impact of environmental factors on human health. For lighting sources, strobe, ultraviolet radiation, electromagnetic radiation, heat radiation, glare and other light pollution, with the progress of mankind, light pollution has reached the point of affecting human health, and can no longer be ignored. The LED as a non-stroboscopic, no UV radiation, no electromagnetic radiation, low heat radiation and other characteristics, coupled with the application of light diffusion technology to eliminate glare, make it a truly healthy light source.

1, no frequency flash source. We change the luminous flux of an electric light source as a function of the periodic alternating voltage of the alternating current power supply, resulting in a stroboflash of light, dark, or weak. According to the strobing studies of teaching, office, production, and living environments in lighting and health medical institutions such as the Cambridge Medical Research Center and the International Lighting Committee's headquarters in Vienna, the strobe phenomenon is objective and exists in a long-term subtle manner. Endangering people's health and human visual systems.” For this purpose, European Commiion has published the “90/270/EC Guide”, which emphasizes the necessity of resolving and reducing the strobe effect of luminaires and addressing the causes of migraine and optic nerves. Systematic lesions. Incandescent, fluorescent, three-color fluorescent, energy-saving lamps or by 50Hz ~ 60Hz AC, or high-frequency high-voltage power supply, there are different frequencies of strobe. In particular, fluorescent lighting fixtures are high-frequency stroboscopic flashes. Moving objects under this kind of lighting will have ghosting phenomena. For example, fluorescent lamps may not be used in gymnasiums, especially small balls such as table tennis and badminton Nearly impossible to play under lighting. Rotary machine tools in the production hall can cause the human eye to have the illusion of reversal or standstill when the fluorescent lighting is illuminated, which leads to accidents.

The stroboflash phenomenon is also the cause of eye fatigue and damage to people's eyesight, especially the decline of young people's vision of the main "killer", we can think: From vegetable oil lamp, kerosene lamp to incandescent lamp, fluorescent lamp, lighting brightness is gradually increasing, while the young Visual acuity has been declining year by year, and the age of younger people is increasing. This indisputable fact does not have to do with the strobe of electric/light fixtures. The LED lamp is powered by a low voltage DC, there is no periodic alternating power supply voltage, so there is no strobe effect. It is now recognized as a person's eyesight, especially the healthy lamps and lanterns that are beneficial to young people's eyesight.

2, no UV radiation source. Incandescent, fluorescent, three-color fluorescent, and energy-saving lamps all have varying degrees of ultraviolet radiation. Research at the Institute of Dermatology and Dermatology at the China Medical University shows that working under fluorescent light and studying ultraviolet light absorbed during the day is quite an hour in the sun. Ultraviolet radiation can directly damage the body's immune system, killing white blood cells, damaging the chemical bonds between nucleic acids and proteins, causing mutations in DNA, and even cancer.

3, no electromagnetic radiation source. Fluorescent lamps, three-color fluorescent lamps, and energy-saving lamps all work in high-frequency and high-pressure conditions, and they inevitably bring about different degrees of electromagnetic radiation. The LED light source operates in a DC/low voltage state without electromagnetic radiation. According to studies at the University of Cambridge Medical Research Center and the International Lighting Committee's headquarters in Vienna, electromagnetic radiation may cause palpitations, insomnia, leukopenia, memory loss, damage to the cardiovascular system and nervous system, and electromagnetic radiation damage is cumulative.

Second, energy-saving lighting

With the gradual improvement of the LED chip and package module technology level, although there is still a certain gap between the domestic LED chip and package module and the internationally famous brand luminous efficiency, but as long as the packaging technology and secondary optical design is reasonable, domestic white LED The luminous efficiency of the chip and package module can reach 80~90lm/W, and the luminous efficiency of domestic R/G/B (red/green/blue) LED synthetic white light has reached about 60lm/W. Luminous efficiency of lamps and backlight assemblies has exceeded the luminous efficiency of conventional fluorescent lamps and other light sources. The successful application of the "Bird's Nest" and "Water Cube" LED landscape lighting and LED large-size display screens of the 2008 Beijing Olympic Games showed us that LED has entered the era of professional lighting and general lighting. Take the Optoelectronics as an example, it seizes this opportunity, based on LED backlight module technology, to the LED vertical development - LED backlight module ultra-thin liquid crystal display; horizontal development to the LED - LED indoor and outdoor lighting .

1, LED indoor lighting. The use of high-end backlight technology for LED interior lighting design has achieved a good energy-saving effect. The following is a comparison of the XX brand 20W x 3=60W fluorescent lamp assembly and the Diopco's grille lamp as examples. We conducted the actual test, the original 20W × 3 = 60W fluorescent lamps, including the ballast consumption, the actual total power consumption of 81.5W, while the same brightness of the LED light of the Royal Lights grid actual power consumption of 31.6W, saving 61.2%.

2, LED outdoor lighting. The following is a typical example of the use of LED street lamp and high-pressure sodium lamp economic/technical data. Conditions: (1) The road length is 10Km, the street light is 1PCS/30m, and the total number of street lights is 666PC; (2) The high pressure sodium lamp power is 250W/PCS, the LED street light power is 100W/PCS, reaching the same brightness; (3) The high pressure sodium lamp unit price is 1000 yuan RMB/PCS , LED street lamp unit price is 5000 yuan RMB/PC; (4) high-pressure sodium lamp needs to be replaced 8 times in 10 years, LED street lamp only needs to be installed 1 time in 10 years; (5) according to the power configuration transmission cable. Result: The first investment in LED street light is large, and the comprehensive cost in 10 years is only 38.47% of high pressure sodium lamp. And to a large extent, the problem of energy shortage is solved.

3, LED backlight module. Diopto Electronics has been committed to the application of LED in backlight modules since 2006. The small- and medium-size backlight modules (19 inches and below) have all been LEDs. In large-size backlight modules, they have also started at 22 inches and 24 inches. 26-inch applications, and gradually develop 32-inch, 42-inch and other large-screen backlight module. In particular, after the dynamic control of the video brightness of the LED backlight assembly, its power saving effect is very obvious. The following uses a 19-inch display as an example.

The 19-inch display adopts an ultra-thin integrated design, which reduces the thickness from 25 inches for conventional products to 13.3 inches, which is only 53.2% of the conventional products; the quality is reduced from 4.5Kg to 2.5Kg, which is only 55.6 for the conventional products. %; If calculated according to domestic sales of 30 million units in 2008, it can save 60,000 tons of steel or plastic per year. Energy consumption is reduced from about 35W for conventional products to 15~22W (different in signal intensity and energy consumption), which is only 33.3%~48.9% of conventional products. If domestic sales were 30 million units in 2008 (by daily 8 hours calculation) It can save 2.4 million kWh per year. It can be seen that the energy-saving effect is very significant.

Third, environmental protection lighting

LED lighting has become the consensus of the industry. Mainly reflected in the following aspects: (A) Because the LED is a solid light source, no mercury and harmful gases, so no pollution to the environment. (B) Because LED is a solid light source, no fragile material, long service life; its tiny particles, even when the scrap, electronic waste less. As long as it is recycled and processed properly, it will not affect the environment. (C) It is widely believed that sunlight is the most natural light for the human eye. However, when sunlight reaches a certain level of brightness, it cannot use direct sunlight to see the light. It must be a cloudy day, or the light that is received by the human eye through refraction and reflection is the light that the human eye feels comfortable and natural. LED interior lighting is in accordance with this principle, the application of high-end backlight module technology, the LED point light source through the refraction and reflection, the light diffusion, making it a uniform, soft light surface light source; and the distribution of light The range is controlled within the designed light intensity distribution curve so that it does not produce glare.

Fourth, the development prospects of professional lighting and general lighting

LED light source has gradually improved its luminous efficiency, but there is still a lot of room for improvement, the stability is more reliable, the price is gradually falling, giving the LED lighting industry provides an excellent opportunity. The global lighting LED lighting industry battle, the world's major lighting industry giants have launched a large-scale commercial development plan. It is proposed that before 2010, the LED luminous efficiency should be increased to more than 200 lm/w, providing the industry chain with mid-stream and downstream companies with favorable conditions for extraordinary development.

China’s “National Semiconductor Lighting Project” has officially started its implementation in June 2006 with the support of the “863” plan and other scientific and technological plans. Now has formed a preliminary epitaxial wafer production - chip preparation - packaging integration - LED application is relatively complete industrial chain, has occupied a considerable share in the international market. Xinhuanet reported on July 24, 2008 that Wen Jiabao presided over the meeting, researched and deployed strengthening energy-saving and energy-saving work, and stressed that “we must do a good job of lighting and saving electricity, and increase the promotion of efficient lighting products. This year and next year, large and medium-sized cities’ government agencies and cities will Road lighting, hotels, restaurants, public places, etc. all out of low-efficiency lighting products "reviewed and in principle passed the "Public Energy Conservation Regulations (Draft)" "Civil Building Energy Conservation Regulations (Draft)." On August 6, 2008, the General Office of the State Council issued Document No. 23 of Guofa [2008] “Notice of the State Council on Further Strengthening the Fuel-Saving and Electricity-Saving Work” to emphasize the measures for lighting energy-saving: First, to speed up the elimination of inefficient lighting products. Formulate and implement plans to eliminate inefficient lighting products and promote efficient lighting products. Before the end of 2008, the administrative agencies of the large and medium-sized cities in the eastern and central regions and in the western regions had all eliminated inefficient lighting products. Before the end of 2009, road lighting and public places in eastern and central regions and large and medium-sized cities in western regions had eliminated inefficient lighting products. Increase the use of financial subsidies to promote efficient lighting products. The use of central budget investment to support high-efficiency light sources, lighting and other production companies to implement technological transformation, research and adopt tax policies to suppress the production and consumption of incandescent lamps and other inefficient lighting products. The Guangdong and Shenzhen municipal governments have also introduced a series of policies to support the development of the LED industry. On May 5th, Mayor Xu Zongheng presided over the 128th Session of the Municipal Government's 4th Executive Meeting. The research reviewed and approved in principle the “Shenzhen LED Industry Development Plan (2009-2015)” and a series of policies supporting the development of the LED industry. file. And it is being implemented one by one. It can be seen that both the policy environment and the possibility of technological development have injected new vitality and development opportunities for the LED industry. And both from the professional lighting, general lighting, have a huge market and development prospects.

From a professional lighting point of view, large-size displays, TV backlight components, automotive lamp lighting has a huge market. In terms of general lighting, the market capacity is greater. Street lighting, commercial lighting, civil lighting, and decorative lighting have a brighter future. As long as we look at the target and gradually solve the problem of LED light efficiency has not yet reached the ideal technical tender, the problem of light decline is still not ideal, the price is still too high, China's LED industry chain has not yet formed organically, China's huge LED enterprise team Compared with international giants, it is still not very strong. However, as long as the LED companies implement the LED industry planning according to all levels of government, it will definitely change the financial crisis as an opportunity for development. China's LED industry has gradually formed an organic industrial chain.

V. Conclusion

LED lighting has great advantages in health, energy saving, and environmental protection. The LED industry is a flourishing sunrise industry. It is bound to get extraordinary development in professional lighting and general lighting. And this time has come.