METAL HALIDE LAMP FOR ATTRACTION OF FISH Russian patent published in 1995 - IPC

FIELD: electrical engineering. SUBSTANCE: metal halide lamp has discharge tubular envelope with hermetically sealed electrodes and filled with inert gas, thallium halide, cerium halide (or additions forming cerium halide in discharge tube) and, is necessary, mercury and/or thorium and and/or cesium halide. Novelty is that discharge tube has additionally zinc halide. Molar ratio of zinc halide to cerium halide is within 0.3 and 8. The rest of components are taken in the following amounts: inert gas 0.5 - 100 kPa, thallium halide (0,2-2,5)×10^-6 mol/cm³,, halide of rare-earth element, for instance, cerium (or additions forming above-indicated amount of cerium halide) - mercury, if used, 10^-6, thorium, if used, 10^-6, cesium halide, if used, 10^-6 . Iodides, bormides, chlorides or their mixture can be used as halides. EFFECT: increased efficiency, enhanced ecological properties of lamp. 3 cl, 1 tbl