A modern stadium must have a good lighting environment to ensure visual effects and meet the lighting requirements of spectators, athletes and TV broadcasts. Do you know how to design stadium lighting?
Four Corner Arrangement
Lamps are arranged in the four corners of the competition field in a centralized form combined with light poles. Until today, the lighting facilities of many stadiums are still arranged in four corners. Four light poles are set at the four corners of the field. The tower height is generally 35-60m, and narrow beam lamps are commonly used. This type of layout is suitable for football pitches with no canopy or low canopy height. This method has low lighting utilization rate, difficult maintenance and repair, and high cost.
Multiple Pole Arrangement
The multi-pole arrangement is a form of arrangement on both sides. The arrangement on both sides is a combination of lamps and light poles or building tracks, and is arranged on both sides of the competition field in the form of clusters or continuous light belts. As the name implies, the multi-pole arrangement is to set up multiple groups of light poles on both sides of the field, which is suitable for football practice fields, tennis courts, etc. Its outstanding advantage is that it consumes less electricity, and the ratio of vertical illuminance and horizontal illuminance is better. Due to the lower light pole, this type of lighting arrangement also has the advantages of less investment and convenient maintenance.
Light Belt Arrangement
The light belt arrangement is another form of two-side arrangement, that is, the lamps are arranged in rows on both sides of the stadium to form a continuous light belt lighting system. The light belt lighting is evenly illuminated, and the brightness between the athletes and the stadium is relatively good. At present, it is recognized in the world that this lighting method can meet the requirements of color TV broadcast, high-definition TV broadcast and even ultra-high-definition TV broadcast.
The length of the light belt must exceed the goal line by more than 10m. For Class A and super-level comprehensive stadiums, the length of the light belt is generally not less than 180m, and the projection angle of the lamps should not be less than 25°. Some stadium light belt lighting is very close to the sideline of the field (the angle is more than 65°), and the side of the field closer to the light belt cannot obtain sufficient vertical illuminance, so the rear lighting system must be added.
The mixed arrangement is a lighting arrangement that organically combines the four corners and two sides (including multi-pole arrangement and light belt arrangement). It is a lighting arrangement with good lighting technology and lighting effect for large comprehensive stadiums in the world at present.
The mixed arrangement has the advantages of the two kinds of lighting, which enhances the sense of reality, and the vertical illuminance and uniformity of the four directions are more reasonable, but the degree of glare is increased. At this time, the four corners are often not set independently, but integrated with the building structure, so the cost is relatively low.
The floodlights used in the four corners are mostly narrow beams to solve the lighting problem. Most of the light belts are medium beams and narrow beams to achieve far, medium and near lighting. Mixed arrangement, the projection angle and azimuth arrangement of the four corners can be properly and flexibly handled, the length of the light belt arrangement can also be appropriately shortened, and the height of the light belt can also be appropriately reduced.