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Metal halide lamp having lead metal powder to reduce blackening
Metal halide lamp having lead metal powder to reduce blackening
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机译:具有减少黑化的铅金属粉末的金属卤化物灯
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摘要
A high pressure metal halide discharge lamp of the sodium- scandium type which has the maintenance thereof improved by the addition of a small quantity of lead metal powder. The lead metal powder is added to the discharge sustaining fill in an amount of from between about 0.4 and 1.2 wt. % of the total amount of discharge sustaining fill.
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