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The application of LED lighting has become more and more common
Technology is a hard condition for development, and design penetrates into every corner of people's lives with soft power. With the development of lighting technology and the development of LED technology, the application of LED lighting in daily life has become more and more common. How to develop and design excellent LED lighting products, firmly attract customers' attention, quickly seize market opportunities, become the hard condition for every lighting technology development, design penetrates into every corner of people's life with soft power. With the development of lighting technology and the development of LED technology, the application of LED lighting in daily life has become more and more common. How to develop and design excellent LED lighting products, firmly attract customers' attention, and quickly seize market opportunities, has become the goal that every lighting design worker has tried to achieve. At present, the application of LED lighting is still dominated by public facilities, and airports, stations, hotels, etc. are all major LED lighting applications. This paper takes the lighting project of Chengdu Airport New Terminal as an example to discuss the current needs and development trends of LED lighting design and engineering design. Under the premise of using LED light source, how to further improve the energy-saving effect of lamps is a new topic before us. LED lighting trend analysis in the future focus on visual experience In the 21st century of technological explosion, global politics and economy are rapidly changing. Energy and climate issues have become the hot issues of national development, and lighting is the intersection of these two issues. point. In the energy consumption rankings, lighting ranked first, accounting for about 25. At present, the United States, Russia, Japan, South Korea and other major economic countries have introduced the elimination policy of traditional light sources and LED lighting popularization programs, and China is no exception, this year. A notice has been issued that the incandescent bulbs will be phased out. In this issue, the direction of the country and the company to choose the luminaire is the same. At the beginning of many large-scale lighting projects, it has been clarified that indoor lighting will use LED lighting fixtures, so that the cost of electricity in operating costs can be greatly reduced. However, under the premise of using LED light source, how to further improve the energy-saving effect of the lamp? This is a new topic before us, and it is also a question worthy of deep thinking in the design and development of LED lighting. At present, in the design and development process of LED lamps, almost all designs are carried out around the main line of how to improve the light efficiency of products. From the design, testing and analysis of power supplies, to the selection of LEDs, the array of arrays, to the haze requirements of translucent panels, and even the color of silkscreen fonts on PCBs, designers throughout the industry have been doing their utmost to improve light efficiency. . The lighting project of the new terminal building of Chengdu Airport clearly puts forward the requirement of using LED light source 110lm/W and the whole lighting efficiency of 65lm/W for the downlight products. This is a very high indicator for indoor lighting, and it is also the development of LED light source. The level of technology that can only be reached in the last one or two years. In the end, the project selected a circular embedded downlight, the overall lighting efficiency of up to 73.26lm / W, exceeding the requirements of 10 or more. The demanding requirements for light efficiency are not difficult to understand, because higher-efficiency LED lighting fixtures mean that energy consumption can be further reduced. Take the circular embedded downlight as an example, the original power of Chengdu Airport is 21W, the rated luminous flux is 1170lm, the measured luminous flux is 1282.08lm, the power is only 17.5W, which is 3.5W lower than the original 21W. The total number of lamps in the whole airport is 10000 sets. Assuming an average of 12 hours of lighting per day, the electricity saved is 153,300 kWh, equivalent to about 180,000 yuan per year. What's more important is the carbon emissions, environmental pollution and climate impact behind this 180,000 yuan per year, which has far-reaching significance for enterprises and countries. The visual experience is the visual need. The visual experience includes not only the comfort of the lighting, but also the appearance and installation details of the luminaire. The lighting level of the airport building has clear illumination, glare and color rendering requirements in the national standard GB50043-2004 Architectural Lighting Design Standard. However, for the customer, it is not enough to meet the requirements of the standard. The actual lighting design must be closely combined with the work nature, population range, building structure and other factors in different areas of the building to give customers a good visual experience. ,Recognized. Good visual effects depend on the excellent design of the overall lighting project and the excellent performance of the lighting fixtures. In the design of the lighting scheme, detailed simulation analysis should be made for the lighting schemes of each functional area, that is, the lighting simulation calculation software is used to design the lighting arrangement, type, luminous flux and light distribution curve of different regions. While meeting the functional requirements, we should also take into account the details and humanity. For more spacious and open space, in order to avoid glare caused by a large number of lamps on the ceiling, a hard light bar can be used for side illumination; while the rest place should adopt warm white and low power and illumination to make the light more uniform and soft. People's comfort. In the Chengdu airport lighting scheme, the use of LED as a light source, combined with the application of new optical materials such as high-reflection, high-transmittance masks, makes the efficacy of LED lamps much higher than traditional lamps. In addition, the intelligent control system can obtain the ambient illuminance through the sensitized detector, and then combine the control system to adjust the brightness of the luminaire in a specific area, thereby achieving higher-level requirements such as on-demand lighting and secondary energy saving. The visual experience includes not only the comfort of the lighting, but also the appearance and installation details of the luminaire. Taking the installation of the cylindrical mounted downlight as an example, it is necessary to ensure that the luminaire can be precisely adjusted within a certain range of length, width and height, and that the luminaire is completely perpendicular to the ground after installation, and that no installed parts screws can be seen. These harsh conditions have brought more and more challenges to luminaire design. Therefore, in the interior lighting design, lighting design, architectural design, on-site construction and other units to communicate, explore, research and solve various problems with customers, multi-party collaboration, tailor-made for the project and design LED lamps, has become a new Lighting design trends.