Equipment and devices for protecting the human eyes and face and skin against radiation, and against radiation emanating from the short circuiting of plasma arcs or other ionized gas discharges, namely, protective safety goggles, protective eye pieces in the nature of eye shields, face-protection shields in the nature of visors, protective helmets and sunglasses; sunglasses, optical filters, namely, absorption filters, interference filters, reflecting filters, infrared filters, ultraviolet fi...