Calculate the Nominal Ocular Hazard Distance (NOHD) for collimated lasers to prevent retinal damage per ANSI Z136.1 and IEC 60825 standards.
Purpose of this Tool: Calculate critical eye safety clearances for industrial laser cutting, welding, and scanning installations.
NOHD = \frac{1}{\phi} \left( \sqrt{\frac{4 \times P}{\pi \times MPE}} - d \right)P = \text{Power (W)},\quad \phi = \text{Divergence (rad)},\quad d = \text{Aperture Beam Diameter (m)}Generates a formal executive feasibility proposal page ready for management sign-off & signatures.