High luminous efficacy white appearing lamp专利检索-高强度放电灯气体放电灯光源灯光专利检索查询-专利查询网

High luminous efficacy white appearing lamp

阅读：857发布：2021-10-30

专利汇可以提供High luminous efficacy white appearing lamp专利检索，专利查询，专利分析的服务。并且A very efficient white emitting discharge lamp combination. The lamp is similar to a normal high pressure mercury discharge lamp but also contains sodium iodide and thallium iodide as discharge sustaining additives. The lamp also has a phosphor coating of strontium chloroapatite activated by divalent europium on the interior surface of the outer envelope. This combination provides a high intensity source of white light in an extremely efficient manner.，下面是High luminous efficacy white appearing lamp专利的具体信息内容。

权利要求

1. In combination with a discharge lamp comprising an elongated light-transmitting arc tube enclosing a predetermined volume and containing a predetermined amount of mercury which when fully vaporized during normal operation of said lamp will provide a predetermined pressure of mercury vapor therein, and an outer light-transmitting envelope having an intErior surface spaced from and enclosing said arc tube, the improvement which comprises: a. a phosphor coating substantially comprising strontium chloroapatite activated by divalent europium on said interior surface of said outer envelope; and b. discharge sustaining additives contained in said arc tube, said additives substantially comprising: i. thallium in the amount of about 0.025 to 2.5 mg per cubic centimeter of said arc tube volume; ii. sodium in an amount of about 0.02 to 2.0 mg per cubic centimeter of said arc tube volume; and iii. iodine in an amount which is 70 to 130 percent of the stoichiometric amount required to form TlI and NaI with said amounts of thallium and sodium, whereby said combination provides white light in a very efficient manner.

2. The combination of claim 1, wherein said thallium is present in the amount of about 0.16-0.33 mg per cubic centimeter of said arc tube volume, said sodium is present in the amount of about 0.215 mg per cubic centimeter of said arc tube volume, said mercury is present in the amount of about 3.33 mg per cubic centimeter of said arc tube volume, and said iodine is present in the amount of about 100 percent of the stoichiometric amount required to form TlI and NaI with said amounts of thallium and sodium.

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High luminous efficacy white appearing lamp

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