There are many types of laser goggles, the use of different materials, different principles, applications are also different.
Therefore, to provide effective protection of the laser must be based on the specific requirements of the use of laser goggles a reasonable choice. Select the protective lens, the first laser according to the maximum output power (or energy), beam diameter, pulse time and other parameters to determine the maximum laser output or the maximum irradiation dose. Then, according to the corresponding wavelength and exposure time of the maximum allowable amount of radiation (eye exposure limit) to determine the minimum optical density value of the glasses, and accordingly select the appropriate protective glasses.
Select the specific conditions are:
1, the maximum exposure Hmax (J / m2) or the maximum irradiance Emax (W / m2);
2, the specific protection wavelength;
3, the required minimum optical density value Dmin at the corresponding protection wavelength;
4, non-uniformity of the protective lens, asymmetry, incident angle effects;
5, anti-laser radiation;
6, Visible light transmittance;
7, structure and shape.
We have only one pair of eyes, please pay attention to protection!