Eyes are the most sensitive organ of thehuman body to the laser. Laser equipment widely used in military, especially tothe use of blinding laser weapons, the military personnel to form a greatthreateyes. Laser protective glasses appear to be able to help more people's eyes arenot damaged, laser primary damage to the cornea, and involving the lens. Slightdamage, the cornea is a shallow layer of opacity; severe damage, the cornea willbe coagulation necrosis, vaporization, and even the water delivery, the pupildeformation, or even the appearance of the lens opacity. Green, red andnear-infrared laser primary retinal damage. So the laser protective glasses toavoid laser damage to the eyes of the laser protection glasses have a varietyof types, the information is not the same, the principle of different, the useof occasions are not the same.
Details of the selection of the mainselection:
1, the maximum amount of radiation Hmax(J/m2) Emax (W/m2) or themaximum irradiance;
2, specific protection wavelength;
3, the optical density value of Dmin to thecorresponding protective wavelength;
4, the non - uniformity of the protectivelens, non - symmetry, the incident light point of view effect, etc.;
5, anti laser radiation ability;
6, visible light transmittance;
7, structure and shape.
Useful protection of the laser must be inaccordance with the requirements of the detailed requirements of the laserprotective glasses for a reasonable choice. Choose the door mirror, the maximumlaser output power of the primary basis (or energy), beam diameter, laser pulsetime parameters determine the maximum output irradiance or maximum exposure. Then,according to the maximum amount of the corresponding wavelength and lightirradiation to time (eye shine limit) concluded that glasses the minimumoptical density value, and select appropriate protective glasses.
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