Text / Gao Gong LED Zeng Aijun
   Landscape lighting gives the beauty of the city. In the modern urban people's fashion concept, it is not only limited to the light of the city's night sky, but more attention is given to its proper light intensity and well-constructed natural environment space. The enjoyment of beauty--one-on-one-in-one, one-in-one-in-one, reflecting the change of fashion and the modern sense of rhythm, while increasing the spatial change, expressing the inner culture of the city in another form, this is modern The ultimate goal of landscape lighting.
   Landscape lighting applications are increasingly widespread
   LED is widely used in landscape lighting. With the advancement of society and economic development, human beings are constantly pursuing the quality of life, and landscape lighting has an inestimable space for development. At present, the share of landscape lighting in China's LED application market is relatively large, accounting for 25%. Landscape lighting is growing rapidly under the impetus of the government. It is mainly based on decorative lighting in public places such as streets and squares, which can save 70% of electricity. Common landscape lamps include: garden lights, trail lights, buried lights, small spotlights, lawn lights, fast lane lane lights, wall lights, sculpture decoration, etc. With the technological advancement of the LED industry, the scale of applications continues to expand, and the cost is further reduced, LED light sources will become the main source of landscape lighting.
   Beautify the environment due to 'jing'
   In addition to the lighting projects and landscaping of the city and tourist areas, many communities and major construction projects, as well as restaurants and hotels, are now using LEDs to replace traditional, power-consuming neon lights. China's LED landscape lighting can be described everywhere. According to relevant statistics, in 2007 China's LED outdoor landscape lighting output value reached 6 billion yuan, indoor landscape lighting is about 1 billion yuan. LEDs have begun to form emerging industries, and experts suggest that special attention should be paid to the requirements of art, humanity and intelligence in the development process.
   The main role of the Olympic Games and the World Expo is far less than the growth of the landscape lighting market, and more importantly its role model. In order to welcome the Olympic Games and the World Expo, a number of LED landscape lighting projects will be built in Beijing, Qingdao and Shanghai. These projects will also serve as a model while decorating the street. Other cities seeing the outstanding performance of LEDs in landscape lighting will reduce the use of LED landscape lighting.
   Rapid development in the direction of art, intelligence and flexibility
   In terms of landscape lighting, LED has a more unique advantage. It can be convinced that LED landscape lighting will develop rapidly along the road of multidisciplinary integration, moving towards art, intelligence and flexibility. LED is gestating unlimited business opportunities. . Some of the inherent advantages of LEDs are the main driving force for the rapid development of LED landscape lighting. LED application developers need to closely contact customers and upstream and downstream industry support, and work together to promote the promotion and application of high-quality products and projects. aspect:
   (1) Continue to develop high-power LEDs.
   (2) Secondly, it is a compact modular power supply for LED lamps. LED power supply is different from traditional light source, and low-voltage direct current is used. At present, high-efficiency DC power supply is still not mature, and low-efficiency power supply system makes LED energy-saving level greatly reduced.
   (3) It is necessary to eliminate the spot light spots and uneven color mixing caused by the LED planar light source.
   (4) The advantages of LED application in landscape lighting are unparalleled, soft light, bright colors, easy to realize dynamic digital control, energy saving and environmental protection, etc., it will replace the traditional landscape lighting fixtures. To this end, it is necessary to strengthen LED promotion, improving the level of selection and use of LEDs.
An optical fiber cable is a cable containing one or more optical fibers that are used to carry light. The optical fiber elements are typically individually coated with plastic layers and contained in a protective tube suitable for the environment where the cable will be deployed. Different types of cable are used for different applications, for example long distance telecommunication, or providing a high-speed data connection between different parts of a building.
Optical fiber consists of a core and a cladding layer, selected for total internal reflection due to the difference in the refractive index between the two. In practical fibers, the cladding is usually coated with a layer of acrylate polymer or polyimide. This coating protects the fiber from damage but does not contribute to its optical waveguide properties. Individual coated fibers (or fibers formed into ribbons or bundles) then have a tough resin buffer layer and/or core tube(s) extruded around them to form the cable core. Several layers of protective sheathing, depending on the application, are added to form the cable. Rigid fiber assemblies sometimes put light-absorbing ("dark") glass between the fibers, to prevent light that leaks out of one fiber from entering another. This reduces cross-talk between the fibers, or reduces flare in fiber bundle imaging applications.
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