This study presents an innovative, cost-effective LED lighting solution for multi-court indoor sports facilities. By integrating a surface-structured beam-shaping film with commercial LED panel lights, the design achieves an average illuminance of 500 lx at 11.2 m mounting height across eight courts while minimizing glare. The system’s modular control enables adaptable lighting modes for badminton, basketball, and volleyball, significantly improving energy efficiency and visual comfort compared to traditional high-bay lighting.
1. Introduction
Growing demand for sports facilities necessitates high-quality, adaptable lighting. Traditional high-intensity discharge (HID) systems suffer from slow response, glare, and energy inefficiency. Leveraging LEDs’ advantages—energy efficiency, longevity, and controllability—this research introduces an optimized luminaire combining commercial LED panels with a custom optical film for indoor sports venues.
2. Design Methodology
- Luminaire Innovation:
- A surface-structured film reshapes light distribution, narrowing beam angles from 120°×120° to 90°×64° (Fig. 1c-d).
- Key specifications: 60×60×2 cm fixture, 35 W power, 3048 lm flux.
- Anti-Glare Solution:
- Strategically placed screens (6.6×2.2×0.02 m and 6.6×1.27×0.02 m) at 0.83 m from luminaires prevent direct player glare (Fig. 4).
- Court Layout & Zoning:
- Simulated 997.92 m² venue with eight badminton, one basketball, and one volleyball court (Fig. 2b).
- Central court area: 30 luminaires; each baseline: 10 luminaires.
- Lighting zones allow independent control for partial/full court activation.
3. Performance Analysis (DIALux Simulations)
Five lighting modes were evaluated:
| Mode | Luminaires | Avg. Illuminance (lx) | Uniformity | Power (W) |
|---|---|---|---|---|
| Single Court | 100 | 476 | 0.79 | 3,500 |
| 4 Courts (Edge) | 200 | 440–525* | 0.48–0.71* | 7,000 |
| 4 Courts (Mid) | 300 | 583 | 0.67 | 10,500 |
| Basketball | 300 | 598 | 0.66 | 10,500 |
| Volleyball | 300 | 619 | 0.75 | 10,500 |
| Full Facility | 400 | 557 | 0.43 | 14,000 |
4. Conclusion
This design demonstrates:
- Superior Optical Control: Beam-shaping film enables precise light distribution.
- Glare Mitigation: Anti-dazzling screens enhance player comfort.
- Energy Efficiency: Modular zones reduce power consumption by 50–75% during partial use.
- Versatility: Meets illuminance standards (≥500 lx) for badminton, basketball, and volleyball.
The approach offers a scalable, sustainable model for modern sports facilities, balancing performance with cost-effectiveness.