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High-efficiency discharge lamp which incorporates a small molar excess of alkali metal halide as compared to scandium halide
High-efficiency discharge lamp which incorporates a small molar excess of alkali metal halide as compared to scandium halide
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机译:高效放电灯,与卤化scan相比,它掺入了少量摩尔过量的碱金属卤化物
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摘要
High-intensity arc-discharge (HID) device of the metal-halide additive type incorporates as essential discharge-sustaining constituents mercury and inert ionizable starting gas and also sodium and/or lithium iodides and/or bromides as well as scandium iodide and/or bromide. The molar ratio of alkali metal halide to scandium halide is from about 1.7:1 to about 5:1 and this greatly enhances the device efficacy for the generation of visible light, which can be enhanced by as much as 32 percent.
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