What is a Beam Angle?

A beam angle refers to the angular spread of light emitted from a light source. In simpler terms, it defines the range within which light is projected.

Visualizing the Beam Angle

As illustrated in the diagram, the beam angle is measured in degrees. It's the angle between the two outermost rays of light emitted from the source.

Why is Beam Angle Important?

Understanding the beam angle is crucial for various lighting applications. It helps determine:

• Light Distribution: How light is spread across a specific area.
• Illumination Intensity: The brightness of the illuminated area.
• Application Suitability: Whether a light source is suitable for a particular task or environment.

Common Beam Angles and Their Applications

• Narrow Beam Angle (Spot Beam):
  • Concentrated light beam
  • Ideal for task lighting and accent lighting
  • Often used in spotlights and projectors
• Medium Beam Angle (Flood Beam):
  • Wider light distribution
  • Suitable for general area lighting and wall washing
  • Commonly used in outdoor floodlights and indoor recessed lights
• Wide Beam Angle (Diffuse Beam):
  • Very wide light distribution
  • Provides ambient lighting
  • Often used in ceiling lights and table lamps

By carefully selecting light sources with appropriate beam angles, you can achieve optimal lighting solutions for any space or purpose.