4.1 Lighting lacks unified planning Regarding the planning of outdoor advertising lighting, from the survey results of some domestic and foreign cities listed in Table 1, the advertising lighting in foreign cities basically has a master plan or a single plan, while in addition to individual cities in China Or a few pedestrian streets, there is basically no unified planning for the density and level, shape and shape, color and brightness of advertisements. The outdoor advertisements are set in their own affairs and their respective conditions, so that the night view of urban advertisements is very disorderly, plus advertising lighting. Rough products and poor management result in amazing energy consumption, serious visual disturbances and light pollution, and become a very discordant note in the city's night scene. Therefore, learn from the internationally successful advertising lighting planning cities, such as the Champs Elysées in Paris, the New York era, and the experience of urban or street advertising lighting planning in Tokyo Ginza, etc., when planning urban lighting, Marking lighting as an important content or sub-item, unified planning, especially the overall control of advertising, density control, shape control, brightness and color control planning should be in place, and strictly in accordance with the plan to build and develop urban advertising lighting, become the current China's advertising and logo lighting needs to pay attention to and solve the primary problem. At present, Tsinghua University Planning and Design Institute is preparing the "Urban Lighting Planning Specification", including the advertising logo lighting planning as a sub-plan, which not only fills the blank of China's advertising logo lighting planning norms, but also for China. The continued healthy development of advertising logo lighting will have an important impact. 4.2 Lighting design without standards can also attach great importance to the standard of advertising lighting in the international arena. At present, many foreign countries, such as the United States, Britain, Japan, Russia and Australia, have their own advertising lighting standards, especially the International Lighting Commission (CIE) in Technical Document No. 136 (City Lighting Guide) and Technical Document No. 150. The corresponding brightness standard is recommended for advertising lighting in the Guide to Limiting Outdoor Lighting Light Pollution. In order to set standards, many foreign institutions and scholars have conducted a large number of investigations and scientific experiments. For example, Dr. Udofischer of Germany has conducted a large number of investigations and scientific experiments on lighting advertisements, especially dynamic advertisements (such as rotary and flap-type lighting advertisements). The surface brightness and glare have carried out in-depth analysis and research on human visual impact, and finally concluded that "the maximum brightness of the advertising surface is 500cd/m2 and the threshold increment TI is 10%", which provides for the development of advertising lighting standards. Important basis. There is no such standard in China at present, but only a few cities such as Shanghai, Tianjin and Chongqing have regulations in the local regulations for night lighting. Therefore, the development of outdoor lighting standards for urban outdoor lighting in China has become an important issue in the development of advertising lighting in China. It is reported that the Ministry of Construction is organizing the China Academy of Building Research and other units to compile the design standards for urban night lighting in China. One chapter of the standard is the design standard for advertising logo lighting. It is hoped that this standard will be launched soon to meet the development of advertising lighting. need. 4.3 There are too few special types of advertising lighting equipment. According to the survey, there are too few special lamps for advertising lighting. For example, in recent years, a large number of lamps for floodlighting advertising have been built. Except for good lighting, almost no other special lamps are seen. Also, the lamps used for advertising light box lighting can not be found at all; as for the new technology and equipment for advertising lighting, such as optical fiber, light guide tube, EL light strip, color changing neon light, invisible light color paint and high altitude light ball, it is basically blank. Almost all rely on imports. In this way, the designer had to use other non-advertising lighting fixtures and equipment for advertising lighting. Due to the use of non-advertising lighting fixtures for advertising lighting, the consequences are not only that lighting effects (illuminance or brightness levels, illumination uniformity, etc.) are often difficult to meet, but also waste energy. In addition, the safety and IP rating of the lighting system, the appearance of the lights and the environmental landscape are inconsistent. Therefore, the development and level of advertising lighting is urgently needed to develop corresponding advertising lighting equipment. 4.4 In the investigation of energy saving and light pollution of advertising lighting, the relevant people were asked about the design of advertising lighting. The answer was often only creative design, no lighting design, and often the electrician could finish the light with the experience. Therefore, many advertisements with lighting are not too bright or too dark, the brightness of the advertising surface is unevenly distributed, the spot is obvious, and the lighting color matching effect often appears to be out of line with the creative idea of ​​advertising. For example, the brightness of the floodlighting advertisements of the suburban airport roads with dark backgrounds is several times higher than the standard, and thousands of candelas per square meter; in addition, the lighting and light distribution directions of the lamps are improperly designed, resulting in a large amount of spilled light or glare. . This pollutes the environment and wastes a lot of power. Take urban outdoor floodlighting advertising as an example, especially the floodlighting advertising advertisements on the roof and construction site enclosures. Due to the lack of planning control, the speed has increased exponentially or even several times in recent years. For example, the light-emitting lighting advertisement of Beijing Third Ring Road between 1999----20005, from 103 groups to 252 groups, the number of lamps for 400W metal halide lamps reached 16,730, and the total power consumption was 6772KW, which became three. The large energy consumption of the loop far exceeds the night lighting of urban buildings in the area. This cannot but be thought-provoking and worrying. Advertising lighting and urban night lighting often appear to disturb people, and the number is increasing. For example, on July 5, 2005, the 12th edition of the Beijing Letter reported that “the lights of the billboards were directly in the homes of the residents at night, disturbing the residents’ rest.†According to the relevant person in charge of the Beijing Environmental Protection Bureau, the “light pollution†situation in Beijing is relatively serious. They can receive dozens of related complaints every year (for details, please refer to the article “City Light Pollution Cannot Be Governed†in the “Newsletter†on July 5, 2005). These problems and phenomena can be completely avoided if the advertising lighting is carefully designed as planned.
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