Glare from sports court lamps is also commonly known as dazzling, glaring, or blinding. Glare hazard refers to the uncomfortable visual effect produced in the visual perception system when glare energy acts on the human eye. It includes two types: direct and indirect hazards. In the lighting of badminton and table tennis venues, the main hazard is direct glare.
The manifestation of glare hazard from sports venue lamps in the lighting of badminton and table tennis venues is as follows: when athletes move in multiple angles and directions, their eyes only see the dazzling light curtain in a certain field of vision, and cannot see the flying badminton or table tennis ball (the visual target object).
Mild glare hazard from sports venue lamps can cause visual discomfort, visual fatigue, and irritability; in severe cases, it can cause temporary visual disability in perceiving the visual target objects (badminton and table tennis balls). Therefore, we must pay attention to avoiding this when decorating sports venues. The quality of sports venue lighting is mainly considered from the following five aspects:
- Illuminance level: whether the luminosity meets the standard
- Lighting uniformity: whether the illuminance of the sports venue is uniform
- Glare: whether the glare is obvious
- Brightness ratio: the difference in size between the object and the background color and height
- Stability of lighting: whether there is stroboflash
1. Badminton Hall Lighting
There are usually three forms of lighting in badminton halls: natural lighting, artificial lighting, and mixed lighting that combines the two. In the design of a badminton hall, to enable athletes to accurately judge the ball’s path, height, and landing point, the first priority is to maximize the use of natural light, as natural light has the best effect. Of course, glare must be prevented, and strong light should not shine directly or reflect into the eyes. Secondly, it is necessary to increase the stability of illuminance and the uniformity and coordination of its distribution. This is very important not only for athletes to achieve excellent results but also for referees to make accurate judgments and for audiences to enjoy the game.
2. Table Tennis Hall Lighting
According to table tennis rules, in world and Olympic competitions, the illuminance measured from the height of the competition table shall not be less than 1000 lx, and the illuminance of the entire competition table shall be uniform. The illuminance of other parts of the competition area shall not be less than 500 lx. For other competitions, the illuminance of the competition table shall not be less than 600 lx, the entire competition area shall have uniform illuminance, and the illuminance of other parts of the competition area shall not be less than 400 lx.
When multiple tables are used, the lighting level should be consistent. The background lighting of the competition hall shall not be higher than the minimum illuminance of the competition area. The light source shall be at least 5 meters above the ground, and the lamps shall not cause glare. For general training and entertainment venues, the illuminance requirement is lower: the illuminance of the table shall not be less than 300 lx, the installation height shall not be less than 3 meters, and no glare shall be caused to athletes.
3. Basketball Court Lighting
Basketball courts must not only meet the requirements of athletes’ competitions and audiences’ viewing but also meet higher requirements for lighting color temperature, illuminance, illuminance uniformity, etc. In addition, the lighting layout of the lamps must be closely coordinated with the overall planning of the stadium and the structure of the stands. In particular, the maintenance of lighting equipment is closely related to architectural design and requires comprehensive consideration.编辑分享