METHOD OF MAKING UV LIGHT FILTER

摘要

FIELD: manufacture of UV light filters. SUBSTANCE: UV light filter is used as a component of optical hygrometer for suppressing irradiation of lamp at the range of luminescence of ions ofhydroxyl. Cutting-out UV light filter is made on the base of monocrystal magnesium fluoride by illuminating the filter with quanta with energy of 10-15 eV at exposure of 200-300 mW/hour and temperature of 200-300 deg C. Described UV filter is able to absorb lamp radiation at 270-320 nm range from 2% to 0% and transmit radiation at 121,6 range to 50%. The light filter is chemically resistive to different acids, heating to 500 deg C and UV irradiation. EFFECT: improved quality of filter. 1 cl, 1 dwg