The means of lighting and expression when decorating and artistic lighting is to use the expressive power of the light to beautify the square environment space, and to make use of the symmetry of the luminaire and its light color to make the environmental space have a certain atmosphere and artistic conception, embody a certain style and increase the urban square. The beauty makes the square environment space more in line with people's psychological and physiological requirements, thus gaining the enjoyment and psychological balance of beauty.
Therefore, in the lighting design of the square, it should be devoted to the artistic processing of the environmental space by the expressive power of the light to meet the psychological function requirements of people. Practice has proved that the space effect displayed by the light, the use of lighting to render the square building and object shape, the use of lighting to make sculptures, and the use of lights to make pictures, has a very attractive charm, and has played a rich artistic effect.
The main effects of lighting performance are:
(1) Enrich the space content. In modern lighting design, the use of lighting, looming, illusory, dynamic, and controlling the angle and range of light projection to establish the composition, order, and rhythm of light can greatly enhance the spatial variation effect, improve the spatial proportion, and define the spatial range. Emphasize the fun center, increase the spatial level, and define the spatial orientation. Bright and dark contrast can be used to highlight the visual effect in a background with low ambient brightness to attract people's visual attention.
(2) Decorative space art. The decorative effect of the light can be used to embellish or enhance the artistic effect of the space through the styling, texture and arrangement of the lamps. However, only when the choice of lamps is coordinated with the plaza environment can the decorative expression of light be more effectively reflected. Lighting plays an important role in the construction of the square. The artistic treatment of lighting fixtures plays a role in icing on the cake and adding a finishing touch to the square environment, which makes the square environment reflect various atmospheres and tastes, reflecting the style of the square. In addition to the shape of the lighting fixtures, the expressiveness of the lights is also integrated with the shape and color of the square space. When the light illuminates the environmental facilities such as buildings, water bodies, plants, etc. in the plaza environment, the rhythm of these facilities is revealed by means of light and shadow effects. If you further consider the light color factor, this beautiful rhythm will add a magical mood. When the light is combined with the fountain in the square, especially with the voice-activated fountain, the shimmering light and the string of moving beads add a colorful artistic charm to the square space.
First, the existing problems of the night space environment of the city square
1.1. One of the existing problems
The lighting pattern design pattern of the city square is closely related to the socio-economic development model. The rapid development of China's cities, society and economy is a dramatic change in the scale and spatial form of urban squares. As people's market concepts tend to mature, people's transformation of the night environment of urban squares is also increasingly strong.
However, since the beginning of the 21st century, China is still in a period of development, the level of urban development is not balanced, and in some cases where the level of urban economic development is still not allowed, the lighting environment for planning and designing urban squares is restricted in all aspects. Specifically, the capital investment in the lighting environment of the city square is large, and it is included in the planning and design of the entire city lighting environment. It is only the beauty of the city square that cannot be formed. The urban lighting environment needs to consume a lot of electric energy. In today's energy shortage, this seems to be contrary to the international social theme of saving energy. Therefore, some people think that the lighting environment of the city square is a waste of economy and energy, and it challenges the transformation of the lighting environment of the city square and the necessity of planning and design.
1.2. The second problem
At present, in many cities in China, the square night space environment is still dominated by a single lighting function, while ignoring the main body of the square - the psychological and physiological needs of people. In some cities, the square is only used as a place for people during the day, night lighting It is just barely lighting, and sometimes even the basic number of lighting fixtures cannot be guaranteed. It is far from the quality requirements of the modern city night landscape environment. Some cities unilaterally believe that to improve the night economy, as long as the lighting environment of the commercial street is done well, the general public is faced with business, the downtown area is bright, and the square is very depressed, which invisibly causes the citizens to have a nighttime outdoor environment. Single.
1.3. The third problem
In some economically developed areas, urban squares have become the preferred area for people's night life, and even if they have been “lighted upâ€, there are different levels of abuse or improper use of light. The problem of light pollution in the square at night is getting more and more serious, which greatly affects the quality of people's nightlife. Nowadays, the concept of image building has penetrated people's minds. Some enterprises and even some governments and individuals have set up their own billboards and advertising towers in the city square in order to expand their image's popularity. High and bright, the final result of the combination is unconsciously losing the image of the city, polluting the night environment of the city square, causing great harm to the public.
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