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 |