CIE 140 Road Lighting Photometric Testing and Evaluation
The CIE 140 standard is a cornerstone in the field of road lighting photometry. It provides a comprehensive framework for assessing the performance, efficiency, and visual quality of road lighting systems. This standard ensures that street and outdoor lighting meet stringent international guidelines aimed at enhancing visibility, safety, and energy efficiency.
The primary focus of this testing involves evaluating light distribution patterns to ensure they comply with specified criteria. The tests are conducted under controlled conditions in a darkroom or using specialized equipment outdoors. Specimens typically include luminaires, lamps, and other lighting fixtures intended for use on roads and outdoor areas.
One key aspect tested is the uniformity of illumination across the road surface. This helps to identify any hotspots or blind spots where light levels may be insufficient or excessive. Another critical parameter is the眩enia
