Safety goggles calculator for CW lasers
following European norm EN 207
This calculator is for a single wavelength, continuous wave (CW) laser and cannot calculate safety requirements for pulsed lasers or multiple laser wavelengths. The information is provided for educational purpose only.
Safety goggles that follow the EN 207 norm are labelled with the CE logo.
A short introduction to laser safety goggles can be found on this page.
USE THIS TOOL AT YOU OWN RISK
1f is a function given in a table by the IEC 60825-14 (see 60825-14 page 25)
2Values recommended by the IEC 60825-14 for direct accidental exposure (see 60825-14 page 28)
3g is a function given in a table by the IEC 60825-14 (see 60825-14 page 49)
4h is a function given in a table by the EN 207 norm (see this table)