Nomographic Determination of Safety Factor for Protection of Eye Against Laser Radiation

摘要

For given parameters of laser source the estimation of factor of safety for direct viewing of the laser beam with unprotected eye at a given distance can be made by conventional nomographic techniques. One such nomograph for a pulsed ruby laser has been drawn. Importance of the knowledge of safety factor in determining the required attenuation for the design of protective glasses has been indicated.