The quality and quantity of illumination the purpose of sports venue lighting is to provide an appropriate lighting environment by controlling the brightness of the object and its background so that the object can be clearly visible before the players, spectators and TV viewers.
To achieve this goal, both the quality and quantity of sports field lighting should be considered. These factors are discussed in the following chapters. Lighting recommendations for indoor, outdoor and professional sports are listed in Fig. 20-2. Additional discussion of lighting quality considerations is also visible in section 10th-visual environmental quality.
Illumination levels are important to meet the needs of players and spectators as well as television cameras, and should be clearly understood at the outset of the design process, as the lighting requirements of viewers and television cameras often exceed the recommended level of the sport itself. The factors that affect the recommended lighting levels and other lighting design issues for all movements are determined by:
* Speed of movement: relative to different background brightness and color, in the movement of a larger range of speed changes, should be able to see the different size of the visual task.
* The skill level of the players: as the players ‘ skill level increases, the importance of the speed and accuracy of the object increases, requiring a higher degree of illumination. A professional match requires a higher illumination than a less skilled or entertaining match. * The age of the contestants: it is agreed that older players require a higher degree of illumination and a lower tolerance for glare than younger players.
* Audience capacity: In the opposite distance of the site, the visual size of the function decreased. This smaller visual size requires increased illuminance to complement. For sports venues, illuminance is determined by the led outdoor sports lighting required by the audience sitting farthest from the venue.
* Television broadcasts: The illuminance required for a television camera and photographic film depends on the sensitivity of the photosensitive media, the aperture of the camera, and the depth of vision to be displayed. The TV camera uses a long telephoto lens that requires twice times more illumination than the regular telephoto lens.