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    High pressure metal vapor discharge lamp
    1.
    发明授权
    High pressure metal vapor discharge lamp 失效
    高压金属蒸汽放电灯

    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

    HIGH PRESSURE METAL-VAPOUR DISCHARGE TUBE
    3.
    发明专利
    HIGH PRESSURE METAL-VAPOUR DISCHARGE TUBE 未知

    公开(公告)号：GB1280735A

    公开(公告)日：1972-07-05

    申请号：GB4087070

    申请日：1970-08-25

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： MIZUNO HIDEO ,  KIMURA SADAO ,  AKUTSU HIDEZO ,  YAMAZAKI HARUO ,  OKAMOTO TAKIO ,  WATARAI YOSHIAKI ,  BABA SHOICHI

    IPC: H01J61/04

    Abstract: 1280735 Metal vapour lamps MATSUSHITA ELECTRONICS CORP 25 Aug 1970 [29 Aug 1969] 40870/70 Heading H1D A high pressure metal vapour discharge lamp comprises a sealed transparent polycrystalline high density ceramic tubular enclosure 1 (e.g. alumina, beryllia, magnesia) containing a rare gas (e.g. Xe), Hg, and one or more alkali metals (e.g. Na) to form a saturated vapour pressure, and metal layers 5 in contact with the outer wall at each end to conduct heat from the hotter to the cooler parts. The layer 5 is preferably a metal of high m.p., high thermal conductivity and low vapour pressure and may be Ti, Y, Rh, Ru, Mo, Nb, Ta, W, Pt, Ir, Re or Os and may be foil such as 0À02 mm. thick Ta, formed by chemical or vapour deposition, or by sputtering. Ceramic end discs 2 may be replaced by metal end caps. The metal layers preferably do not extend beyond 5 mm. from the front tip of electrodes 6. In sputtering, the central part of the tube is covered with an insulator such as porcelain supporting a W anode, and the end parts are wound with metal foil. For chemical deposition, the end parts may be heated to 600‹ to 700‹ C. and contacted with a mixed gas of molybdenum pentachloride and hydrogen. Ceramic cement seals the enclosure, discs 2 and leadin metal tubes 3. Discs 2 are preferably the same material as the enclosure, but may be other ceramics with high thermal expansion coefficient approximating that high m.p. tubes 3 of Nb, Ta or Mo for example. Alkali vapour pressures may be 300 to 1000 torr and the coolest and highest tube temperatures may be 650‹ to 800‹ C. and 1200‹ C. respectively (e.g. Fig. 2, not shown).

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