The light source is selected in the swimming pool lighting. The light color and color rendering of the light source meet the visual requirements of the athletes and the audience. Therefore, it is necessary to systematically compare several commonly used light sources in the swimming pool. The sodium lamp has a high luminous efficiency and a long life, but its color rendering index is only about 60. This cannot meet the requirements of Ra>65 as stipulated by the national standard for civil building lighting. According to the summary of the design of the Beijing Asian Games Gymnasium, it is considered that to achieve the light source of color TV lighting, the color rendering index Ra should be above 70. Therefore, it is not ideal to choose a sodium lamp as the light source for swimming pools. The xenon lamp, although the Ra value is higher, but because of the higher color temperature, its light color is colder, lacks long-wavelength spectrum, and there is a phenomenon of uneven light color, so it has not been selected in engineering design. In the design, the 400 watt xenon lamp + 250 watt high color rendering sodium lamp mixed light source compensates for the deficiency of the above two kinds of light sources. This mixed light source not only has obvious energy saving effect, but also has good light color and spectral energy distribution. More continuous, the color temperature is relatively moderate, thus achieving the purpose of improving the color rendering and improving the light environment.
Lighting method and lighting selection In considering the lighting method, in order to obtain the necessary uniformity, the competition lighting is symmetrically arranged on the entire ceiling grid, but considering the lighting method, the vertical illumination is not It is too ideal, and the stereoscopic effect is relatively poor. It will have many adverse effects on the athletes' competition and the audience watching the game. For this reason, after careful calculation in the design, the conventional practice of evenly arranging the lights over the playing field is broken, and the steel mesh is fully utilized. The characteristics of different heights and stars are adopted in different elevations, so that the oblique illuminations arranged around it form overlapping overlapping lights, which not only improves the vertical illumination of the entire swimming venue. It adds a sense of three-dimensionality and is combined with its architectural style.
In the choice of lamps, it is mainly based on the key issue of reducing glare. In the design, I fully listened to the opinions of the lamp manufacturer and the brothers of the Brothers Design Institute, and adopted some measures to reduce the impact of glare. Firstly, the reflective surface of the luminaire is specially treated to limit the surface brightness of the illuminator, causing diffuse reflection, softening the light, increasing the protection angle of the luminaire, and adding a grille at the exit of the luminaire to reduce the brightness of the illuminating port of the luminaire. The above measures have been confirmed by the relevant units to basically meet the requirements for reducing and limiting adverse glare.
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