What types of light-emitting angles do LED street lights have? What are the differences in applications for different light-emitting angles?

The light-emitting angles of LED street lights typically include the following types, each with its specific advantages and applicable scenarios in practical applications:

1. Narrow angle (less than 30°)

Characteristics: Concentrated light, high light intensity, and long illumination distance.

Applications: Mainly used in scenarios requiring high brightness and long-distance illumination, such as highways and urban expressways. In these scenarios, narrow-angle LED street lights can focus light on distant areas, ensuring long-distance road illumination while reducing light waste.

2. Medium angle (30° - 60°)

Characteristics: Even light distribution, balancing brightness and coverage.

Applications: Suitable for main and secondary urban roads. This light-emitting angle can ensure road illumination brightness while providing sufficient coverage, allowing both sides of the road to receive good lighting. It can meet the lighting needs of vehicles and provide a clear visual environment for pedestrians.

3. Wide angle (greater than 60°)

Characteristics: Wide light coverage, but relatively low light intensity.

Applications: Mainly used in scenarios requiring large-area illumination, such as squares, parking lots, and sidewalks. In these scenarios, wide-angle LED street lights can evenly distribute light over a large area, ensuring sufficient brightness throughout the area and avoiding lighting dead zones.

4. Special angles (such as asymmetric angles)

Characteristics: Light distribution can be adjusted according to specific needs, such as single-side or double-side bias.

Applications: Suitable for some special scenarios, such as curve lighting and tunnel entrance and exit lighting. For example, at curves, asymmetric-angle LED street lights can project more light to the inner side of the curve, reducing the driver's blind spots; at tunnel entrances and exits, light can be concentrated on the tunnel interior to help drivers better adapt to light changes.

Summary of application differences based on different light-emitting angles

Illumination effect: Narrow angles are more suitable for long-distance high-brightness illumination, wide angles for large-area uniform illumination, and medium angles strike a balance between the two.

Applicable scenarios: Narrow angles are mainly used in scenarios with high requirements for long-distance illumination, such as highways; wide angles are suitable for areas requiring large-area illumination, such as squares and parking lots; medium angles are suitable for urban roads that need to balance brightness and coverage.

Energy-saving effect: Narrow-angle and medium-angle LED street lights, due to concentrated light, have higher light efficiency and are relatively more energy-efficient; wide-angle LED street lamps, although they have a wide coverage, have lower light intensity and may require more lamps to achieve the same illumination effect, so energy-saving considerations need to be comprehensive.

Visual comfort: Wide-angle LED street lamps, due to even light distribution, have less visual impact on pedestrians and drivers and are more suitable for areas with high pedestrian traffic; narrow-angle LED street lamps may cause some glare to drivers at long distances and require reasonable design of the installation position and angle of the lamps.

In practical applications, choosing the appropriate light-emitting angle for LED street lights requires a comprehensive consideration of road type, lighting requirements, environmental factors, and energy-saving requirements, to achieve the best lighting effect and economic benefits.