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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
    2.
    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).

    HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP
    7.
    发明专利
    HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP 未知

    公开(公告)号：CA1064566A

    公开(公告)日：1979-10-16

    申请号：CA274268

    申请日：1977-03-18

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： WATARAI YOSHIAKI ,  YAMAZAKI HARUO ,  SAITO NAOKI ,  YAMAGUCHI MASAYUKI ,  OKAMOTO TAKIO ,  AKUTSU HIDEZO

    IPC: H01J61/38 ,  H01J61/40

    Abstract: HIGH PRESSURE SODIUM VAPOR DISCHARGE LAMP The specification discloses a high pressure sodium vapor discharge lamp comprising an alumina tube envelope containing sodium, an inert starting gas, a mercury or cadmium buffer gas source and a pair of discharge electrodes. The inner diameter d in mm of the tubular envelope and the average potential gradient E in volt/cm has the following relationship: E ? 37.7-2.05d. The lamp further comprises a radiation suppressing means at least partially surrounding the tube envelope for selectively, and at least partially, absorbing red radiation having wavelengths longer than 620 nm. The lamp achieves a higher color temperature and a higher general color rendering index than conventional lamps of this type without an undesirable increase in the tube voltage, and is suitable for highly efficient indoor illumination.

    METHOD AND APPARATUS FOR MAKING A COLOR CATHODE-RAY TUBE
    8.
    发明专利
    METHOD AND APPARATUS FOR MAKING A COLOR CATHODE-RAY TUBE 未知

    公开(公告)号：CA924157A

    公开(公告)日：1973-04-10

    申请号：CA101400

    申请日：1970-12-23

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： FUKUMA HIROSHI ,  WATARAI YOSHIAKI ,  OKAMOTO MASAHIRO ,  ASHIZAKI SHIGEYA ,  NINAGAWA CHIKAYOSHI ,  KOBAYASHI YOSHICHIKA

    IPC: H01J9/227

    Abstract: 1302020 Colour television tubes MATSUSHITA ELECTRONICS CORP 18 Dec 1970 [29 Dec 1969 (2)] 60233/70 Heading H1D In the manufacture of a colour television screen by a photo-resist process the light source is provided by a ring, or by a point source rotating in a ring, the diameter of which is large compared with the diameter of the apertures in the shadow mask through which the photo-sensitive material is exposed. As illustrated in Fig. 5 exposure of an emulsion 9 through the aperture 7 of a shadow mask by an annular light source 12 leaves a sharply defined unexposed central area 14 1 which may be smaller than the aperture 7. If the emulsion contains phosphor and a reversal type photosensitive fixing agent, this process may be used to deposit phosphor dots of one or more colours. Alternativelythe process may be used to deposit an opaque area between the phosphor areas, and in this case the emulsion contains light absorbing material and a positive type photosensitive fixing agent. In Fig. 5 the light source comprises a quartz cylinder provided with a conical recess to leave an annular rim 12 which provides the effective light source when the lower end of the cylinder is illuminated. As an alternative a point source may be rotated in a circle. In one example the inner and outer diameters of the source 12 are are 16À0 and 17À2 mm., the diameter of the aperture 7 is 0À32 mm. and the diameter of the phosphor dot is 0À26 mm.

    FLUORESCENT LAMP
    10.
    发明专利
    FLUORESCENT LAMP 失效

    公开(公告)号：JPS6014743A

    公开(公告)日：1985-01-25

    申请号：JP12250983

    申请日：1983-07-05

    Applicant: MATSUSHITA ELECTRONICS CORP

    Inventor： YAMAMOTO TAKASHI ,  IWAMA KATSUAKI ,  SHIBATA HARUO ,  OOTAKA YOSHINORI ,  WATARAI YOSHIAKI ,  TAKANO OSAMU ,  TAKAHASHI MUTSUO

    IPC: H01J61/44 ,  H01J61/42

    Abstract: PURPOSE:To assure high color rendering characteristic without lowering lamp efficiency by adding at least one light emission property of those near 520nm and 620nm to the three wavelength light emission type fluorescent lamp. CONSTITUTION:A kind of phosphor material which shows the maximum light emitting wavelength at 490-530nm and phosphor material which shows the maximum light emitting wavelength at 620-660nm is added to a mixture consisting of a rare earth oxide phosphor material which is activated by tervalent europium and has the maximum light emitting wavelength in the range of wavelength of 600-620nm, a phosphor material which has the maximum light emitting wavelength in the range of 530-580nm and shows light emission of tervalent terbium and a phosphor material which has the maximum light emission wavelength in the range of 460-490nm and shows light emission of bivalent europium or tervalent antimony. The internal wall of bulb is coated with such mixture and the fluorescent lamp is thus formed. Therefore, a practical fluorescent lamp having satisfactory solor rendering characteristic and high lamp efficiency can be obtained.

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