Laser Irradiance and Beam Divergence Calculator

Here's one of the most essential tools for assessing the basic laser display safety and MPEs.


Irradiance Calculator

Beam diameter at aperture:
mm
Divergence:
mrad
Distance to audience:
m
Laser power:
mW
Diameter at audience:
 mm
Minimum diameter (> 7mm):
 mm
Beam area:
 mm²
Irradiance:
 mW/cm²

 

Divergence Calculator

Beam diameter at aperture:
 mm
Beam diameter at distance L:
mm
Distance L:
m
Calculated divergence:
 mrad