FIELD: lighting. SUBSTANCE: incandescent grid for illuminating lamps on liquid and gaseous fuel consists of (% by weight): 0.5 1.5 magnesium oxide; 1.3 1.9 cerium oxide; 0.3 1.0 neodymium oxide; 0.2 0.3 lanthanum oxide; 0.01
0.02 lutecium oxide; 0.6 1.0 ytterbium oxide; the balance being yttrium. Luminosity developed by the grid proposed is 30 higher than that for grids produced by industry now on the base of thorium oxide. EFFECT: increased luminosity, lack of radioactivity.
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