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When the night of Shencheng comes, a beautiful "LED landscape lighting show" will be staged at the Shanghai World Expo: the east and west facades of the Expo theme pavilion will shine with the stars and the outer walls of the Expo Center will give a quiet and elegant appearance. The white light and the Expo Sunshine Valley incarnation movie screens project brilliant and dazzling patterns. The Chinese pavilion, cultural center and oil pavilion are dazzling in the shadow of the LED light source.

This "light show" is not only a visual feast, but also a feast of science and technology. As a globally recognized fourth-generation lighting technology, semiconductor lighting technology using light-emitting diodes (LEDs) has been fully demonstrated at the Shanghai World Expo Park. The total amount of LED chips used in the Shanghai World Expo Park is more than 1.003 billion. Among them, 80% of the night scene lighting in the park uses LED technology, and the Expo Park has become the world's largest LED demonstration area.

The large-scale and innovative application of semiconductor lighting technology is one of the highlights of this Shanghai World Expo. The most representative application areas include:

1. Outdoor landscape lighting

China Pavilion: Illuminating the red main structure with high color rendering LED floodlights, making the “China Red” outerwear extraordinarily stealing, using more than 23,000 LED lamps, compared to traditional exterior lighting In the floodlight mode, the LED lights of the China Pavilion can save more than 70%. At the same time, due to the long service life of 50,000 hours, the replacement cost of the bulb is greatly reduced.

Expo Cultural Center: The cultural center of the shape of the flying saucer illuminates the side walls and inner walls of the circular window through the LED linear floodlights to create the inner light transmission effect, creating a sense of the future of "space visitors", emitting a vibrant light of the times. .

Expo Center: The exterior lighting adopts yellow and blue LEDs of two color temperatures, which are arranged in a straight line of two lines, simple and well-proportioned; on several open spaces around the Expo Center, blue small ground lights are randomly embedded in the floor tiles. Going up like a random landing of the stars, adding a little liveliness to the building. The façade LED floodlighting fixture adopts a concealed structure to realize “seeing the light without seeing the light”; the façade lighting adopts innovative system control and light distribution mode, and the white light color temperature and brightness of the luminaire can be continuously adjusted, in peacetime, festival, Different occasions, such as major events, can create different light and color environments, and achieve the visual effect of “normal and solemn, festive glory”.

Theme pavilion: The north and south facade curtain wall aluminum panels are opened with a square hollow hole that gradually decreases in size, forming a façade texture. The lighting design uses an aluminum plate opening, and a full-color LED linear floodlight is projected below to form a space for the facade light. The sense of rhythm; the ecological green wall uses randomly arranged full-color LED decorative lamps inlaid in the swaying plants, the combination of night plants and full-color LED lights, respectively, reflects the interaction between the Expo and nature.

Expo Axis: More than 2 million LEDs and more than 90,000 sets of various types of full-color lamps and strips have been used on the 1 km long Expo Axis. At the same time, the large tension film at the top of the Expo Axis is also made of LEDs. The floodlighting lighting makes the entire Expo Axis use the dynamic characteristics of the full spectrum of LEDs to create a festive and festive atmosphere.

Expo Axis Sun Valley: At each intersection of the light steel structure, direct-view LED light-emitting points are installed. There are about 80,000 light-emitting points. The digital control system can display images and text with low resolution. Constructed the unpredictable night lights of the Sun Valley.

Urban Best Practice Area: Landscape lighting is fully LED.

Danish National Pavilion: The Danish pavilion is shaped like a giant ship made of steel. The hull is filled with holes. These holes help to ventilate and transmit light. Each hole is equipped with an LED light source to adjust the light in the hall. It is also possible to illuminate the façade at night, which is extraordinarily beautiful.

The British Pavilion: The "Seed Temple" is the highlight of the British Pavilion. During the day, the sun shines through more than 60,000 transparent acrylic rods to illuminate the interior of the "Seed Temple." At night, the LED light source contained in each acrylic rod lights up the entire "Seed Temple", making the British Pavilion dazzling on the Huangpu River.

Irish Pavilion: The exterior decoration material uses a sun panel. This polymer organic material has great advantages in light penetration and bearing. One end of the solar panel is equipped with a small-sized linear LED lamp, by controlling the combination of LED colors and Change to achieve the diversity of the “city space” of the Irish Pavilion.

The Netherlands Pavilion: “Happy Street” is directly decorated on the surface by LED point light source. The bright and flashing visual effect expresses the joyful atmosphere of the Dutch Pavilion “lighting up”.

French Pavilion: The use of lighting to create a sense of floating in the water, the "candle light" simulated by the lamp expresses the romantic sentiment of "sensible city".

2, information display

Outdoor display of the opening ceremony of the Expo: This display is 300 meters long, 30 meters high, and has a total area of ​​more than 9,000 square meters. The pixel distance is 15 centimeters. It is the largest outdoor LED display in the world. Its dazzling pattern is combined with fireworks. It has brought a shocking visual feast to the global audience.

Expo Center: 400 square meters of large LED display is one of the many highlights of the Expo Center. It adopts humanized hollow and transparent design, and the structure is simple and novel. At the same time, it fully considers the organic integration with the building, harmonious and generous, reasonable layout, and has a modern sense of space art.

Theme pavilion: 7 large strip LED full-color display screens are arranged for pavilion information release, visit guide, video playback, etc. These screens are strip-shaped screens with few high and low pixel points and many horizontal pixels. Clear text and images can be seen at all angles of the theme hall.

Taiwan Pavilion: The biggest highlight - the blessing sky lantern on the lighting platform uses LED display technology to illusion the fantastic view of the sky lanterns. "Guotai Min'an", "Love and Peace"... An e-blessing light sends the blessings to the hearts of the people of the world.

Saudi Pavilion: The large circular LED screen on the "Moon Boat" model ship plays the smiles of children around the world.

German Pavilion: The surface of the big ball of the climax program "Power Source" is covered with 400,000 LED light-emitting diodes to display the changing pattern.

Oil Hall: Just like the "Oil Cube" suspended in the air, its outer surface is 4,000 square meters of electronic screen. It is the world's first for the large-area special-shaped PC board combination LED. It is the world's first light blue "pipe weaving" texture. Such an LED landscape not only fully demonstrates the distinctive characteristics of the petroleum and petrochemical industry, but also has a stylish and dreamy light and shadow effect.

National Grid Pavilion: A six-sided LED screen forms a "magic box" room, each 14.9 meters long and 13.9 meters high. It is a 720-degree illusion space surrounded by 112 LED screens. The total screen area is 1100. More square meters. Visitors enter the "magic box" and will find that not only is it surrounded by beautiful pictures, but even the top of the head and even the soles of the feet can be viewed. Here, people are completely surrounded and immersed in a three-dimensional, magical sensory experience. in.

The General Pavilion and the Meteorological Museum are also equipped with distinctive LED screens, which complement the theme displayed in the museum.

3. Indicator system

Puxi's Urban Best Practice Area: A pavement with LED lighting and floor tiles. When night falls, the LED system can display different colors and patterns on the ground as time goes by, providing information to visitors.

4, indoor function lighting

Shanghai Eco-Home in the Urban Best Practice Area: It is the only pavilion in the Expo Park that uses LED lighting technology for outdoor landscape lighting and indoor functional white lighting. It is a model example of LED application in the future.

“Shanghai·Eco-Home” is the only real-life case that represents Shanghai's participation in the World Expo. It is also the only venue in the Expo Park where all lighting uses semiconductor lighting. As the first “zero energy consumption” ecological demonstration house in China, it shows the ideal ecological housing and the most advanced ecological energy saving and environmental protection technology in the future. “Shanghai·Ecological Home” LED environmental lighting is environmentally safe and cultural and artistic. It perfectly interprets the new ecological living concept of “focusing on environmental protection and energy conservation, advocating happy life”, fully demonstrating the new generation of lighting source with low carbon, energy saving and environmental protection. The advantages of health, versatility and intelligence.

Low-carbon energy-saving: The energy-saving effect is remarkable. Compared with the traditional lighting mode, the overall energy-saving is more than 30%. The overall architectural lighting uses a traditional lighting design with a power of 50 kW and an LED lighting design with a power of 35 kW.

Green and environmental protection: LED uses chip light-emitting technology to directly convert electrical energy into light, with high conversion efficiency, no harmful gas generated by the light source body, and fully conforms to the green ecological architectural concept.

Intelligent and changeable: LED's intelligent dimming and color-changing function enables the light to participate in life with multiple roles, such as the successful shaping of the lighting environment of the Youth Age House, and the shaping of the light environment of the work, life and entertainment scenes of the Youth House.

LED plant fill light application: Mixing different bands of LED lighting can not only illuminate, but also promote plant growth, flowers, fruits, vegetables and other preservation effects.

LED light information transmission technology: LED lamps add carrier transmission information, which makes one lamp dual-use, effectively ensure information transmission is safe, reliable and convenient; large-area shaped surface light source technology: such as the large-sized shaped LED surface light ceiling ceiling in the Youth House of the exhibition (Three floating belt surface light source illustration), the light uniformity distribution technology has made a breakthrough.

LED light source plastic integrated design technology: LED solid light source is easy to shape and plastic, which makes the lighting fixture and the building itself merge, naturally manifesting as a whole, such as LED lighting bookshelf, LED wall large screen, LED light glass The laser laser illuminating glass effectively combines the glass curtain wall and the LED illuminating light source to realize the colorful effect of the building.

Constant color temperature and dark dimming technology: successfully solved the problem of matching LED dimming driver module and traditional dimmer in the whole building, realizing constant color temperature and constant illumination level of indoor lighting, effectively utilizing energy and avoiding light pollution.

In-situ monitoring technology for luminaire reliability: It can effectively predict the life of LED, and screen out high-quality LED luminaires for the Expo to ensure long-term and efficient operation of Shanghai World Expo Shanghai Eco-home LED display products; mobile phone remote control lighting control technology: development and application The mobile phone intelligently controls the lighting system of LED lamps and the like.

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