OPTREL COMFORT

equipment and devices for the protection of human eyes from radiation; namely, protective eye glasses; protective eye shields, shades and helmets for welders; sun glasses; optical filters; namely, absorption filters, interference filters, reflection filters, infrared filters, ultraviolet filters, polarization filters; optical filters and optical filter arrays which are controllable with regard to the transmission rate; equipment for the control of the rate of transmission of radiation for controllable filters and filter arrays