Estimate laser beam divergence and spot size at throw so designers know whether graphics will still read from FOH.
Calculate laser beam divergence and spot size for show design and safety planning.
Compute spot diameter versus distance. Supports full or half-angle and mrad or degrees.
Most manufacturers publish full-angle mrad. If you only have half-angle, pick “Half-angle” and enter that value.
| Distance (m) | Spot dia (mm) |
|---|---|
| 10 | 15 |
| 20 | 27 |
| 40 | 51 |
| 60 | 75 |
| 100 | 123 |