Metal halide lamp pill

Abstract

The invention relates to a metal halide lamp pill. The metal halide lamp pill comprises scandium iodide, sodium iodide, thorium iodide, thallium iodide and indium iodide and further comprises lithium iodide and dysprosium iodide. The metal halide lamp pill comprises, by weight, 70-90 parts of scandium iodide, 10-20 parts of sodium iodide, 0.03-0.1 part of thorium iodide, 0.05-0.15 part of thallium iodide, 0.01-0.04 part of indium iodide, 0.05-0.15 part of lithium iodide and 0.05-0.10 part of dysprosium iodide. According to the metal halide lamp pill, the spectral component and proportion in plasma discharging are changed, and the proportion of visible light is increased. The tube wall load of an electric arc tube is improved, and the luminous flux of unit power is improved. According to a metal halide lamp manufactured through the metal halide lamp pill, the quality exceeds the national standard, and the metal halide lamp has the high light effect more than 120 Lm / w, the service life is more than 12000 hours, and the energy saving and environment protection purposes are achieved.

Description

technical field [0001] The invention belongs to the field of light sources, and in particular relates to a metal halide lamp pill. Background technique [0002] Metal halide lamps are the third-generation light source made by adding various metal halides on the basis of high-pressure mercury lamps. It seals rare earth gases, metal halides and mercury inside the luminous tube. Rare earth gases are mainly used to make metal halide lamps easy to start and can emit strong light immediately after starting, metal halides are used to produce appropriate light output in a stable ignition state, and mercury is used to generate The relatively high inter-electrode voltage required for metal halide lamp operation. Metal halide lamps have the characteristics of high luminous efficiency, good color rendering performance, and long life. They are energy-saving light sources close to daylight color and are widely used in indoor lighting. [0003] Metal halide lamp pellets refer to metal ha...

AI Technical Summary

Problems solved by technology

The photoelectric and color comprehensive technical indicators of metal halides produced by using the latter two ratios have all improved, but it is still difficult to meet the requirements of light source color temperature, light color reproduction and service life for lighting in display windows, printing workshops and other places.