公开(公告)号：US3898504A

公开(公告)日：1975-08-05

申请号：US41601573

申请日：1973-11-15

Applicant: MATSUSHITA ELECTRONICS CORP

Inventor： AKUTSU HIDEZOH ,  YAMAZAKI HARUO ,  OKAMOTO TAKIO ,  WATARAI YOSHIAKI ,  BABA SHOICHI

IPC: H01J61/22 ,  H01J61/30 ,  H01J61/82 ,  H01J61/18

CPC classification number: H01J61/825 ,  H01J61/22 ,  H01J61/30

Abstract: An electric discharge lamp having an excellent color rendition with a color acceptability higher than 1.0, a relatively high luminous efficacy and a good life performance, is provided, in a high pressure metal vapor lamp using a polycrystalline alumina ceramic tubing as the arc tube envelope within which sodium as a metal for producing radiant emission, mercury or cadmium as a buffer gas and xenon as a starting inert gas are contained, by controlling such quantities which are variable in the design of the high pressure metal vapor discharge lamp as the lamp wattage W in watts, an increased internal diameter of the arc tube envelope of the lamp d in millimeters, the interelectrode gap length L in millimeters and a lowered average potential gradient of the arc tube E in volts per centimeter in such a manner that they may satisfy the relations:

Abstract translation: 在使用多晶氧化铝陶瓷管作为电弧管外壳的高压金属蒸汽灯中，提供了具有优异的色彩再现性的放电灯，其颜色可接受性高于1.0，发光效率相对较高，寿命性能好。 通过控制高压金属蒸气放电灯的设计可变的量作为灯功率W，包含作为产生辐射发射的金属钠，作为缓冲气体的汞或镉和作为起始惰性气体的氙 以瓦为单位，灯d的电弧管外壳的内径以毫米为单位增加，电极间间隙长度L以毫米为单位，电弧管E的平均电位梯度以伏特/厘米为单位，使得它们可满足 关系：25> / = e> / = 37.7 - 2.05d（但是d> 9）和10 W 10 W +24 {IL> / = 13.3d - 76.4 16d - 58