1) Illuminance: Reasonable illuminance not only ensures the normal performance of athletes and accurate judgment of referees, but also ensures comfortable viewing of the game by the audience on site and in front of the television. Different sports also require different levels of illumination. The lighting requirements for sports events, commercial activities, etc. also vary.

2) Lighting uniformity: The ratio of the minimum illuminance value to the maximum illuminance value is the illuminance uniformity. Both indoor and outdoor sports venues have high requirements for lighting. Taking basketball game venues as an example, the middle court often gathers more lights, but areas with excessive lighting often produce glare, while the rebounding area often has weaker lighting brightness, ensuring the overall uniformity of lighting on the field and playing a crucial role in the athlete’s level of performance.

3) Glare: Glare refers to visual conditions in the field of vision that cause visual discomfort and reduce object visibility due to unsuitable brightness distribution or extreme brightness contrast in space or time. The perception of light in the field of vision that cannot be adapted by the human eye can have a significant impact on athletes, especially in ball games where athletes cannot accurately determine the landing point of the ball.