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    • 8. 发明授权
    • Discharge lamp with light-intercepting film bands
    • 放电灯带有遮光膜带
    • US06583564B1
    • 2003-06-24
    • US09712325
    • 2000-11-14
    • Hideaki KiryuTakayuki Murase
    • Hideaki KiryuTakayuki Murase
    • H01J1716
    • H01J61/35F21S41/17F21S41/43H01J61/025H01J61/04
    • A discharge lamp which enables glare reduction, so that a lighting fixture can be simplified and reduced in weight. The discharge lamp includes an arc tube having a discharge space, a pair of electrodes having tips facing with each other within the discharge space, an outer tube enclosing the arc tube, a base that fixes one side of the outer tube, and two band-shaped light-intercepting films extending on a surface of the outer tube in the direction of the axis of the arc tube and in parallel with each other, wherein in at least one of the light-intercepting films, an extending portion is formed that extends on the side of the top of the outer tube with respect to the tip of the electrode within the discharge space and in the circumferential direction of the outer tube. Accordingly, unevenness in the intensity distribution of the light distribution pattern can be reduced, and generation of glare can be prevented. Furthermore, because it is not necessary to add a further mechanism for reducing glare such as a light-intercepting plate, a lighting fixture can be simplified and reduced in weight.
    • 一种能够减少眩光的放电灯,从而可以简化照明器具并减轻重量。 放电灯包括具有放电空间的电弧管,在放电空间内具有彼此面对的尖端的一对电极,封闭电弧管的外管,固定外管一侧的基座和两个带状电极, 在所述外管的表面上沿着所述电弧管的轴线的方向延伸并且彼此平行的形状的遮光膜,其中在所述遮光膜中的至少一个中形成有延伸部分 外管的顶部相对于放电空间内的电极的顶端和外管的圆周方向的一侧。 因此,可以减少配光图案的强度分布的不均匀性,并且可以防止产生眩光。 此外,由于不需要添加用于减少诸如遮光板的眩光的另外的机构,所以可以简化照明装置并减轻重量。
    • 9. 发明授权
    • Metal halide lamp for automobile headlight
    • 汽车头灯用金属卤化物灯
    • US06809478B2
    • 2004-10-26
    • US10296731
    • 2002-11-25
    • Masato YoshidaHideaki Kiryu
    • Masato YoshidaHideaki Kiryu
    • H01J1704
    • H01J61/827H01J61/0735H01J61/125H01J61/16H01J61/368
    • A metal halide lamp for an automobile headlight is provided, which includes an arc tube in which a pair of tungsten electrodes are provided at both ends and a metal halide as a main component of a luminescent material and xenon gas as a buffer gas are sealed, wherein the tungsten electrodes contain not more than 0.4 wt % of thorium oxide, the metal halide contains scandium iodide, and a pressure of the xenon sealed in the arc tube is at least 0.4 MPa. This makes it possible to provide a long-life metal halide lamp for an automobile headlight that can achieve a further improved lumen maintenance factor and other life characteristics during 2000 hours or more of lighting.
    • 本发明提供一种汽车用前照灯用金属卤化物灯,其特征在于,包括在两端设置一对钨电极的电弧管和作为发光材料的主要成分的金属卤化物,作为缓冲气体的氙气被密封, 其中所述钨电极含有不超过0.4重量%的氧化钍,所述金属卤化物含有碘化钪,并且密封在所述电弧管中的氙的压力为至少0.4MPa。 这使得可以提供一种用于汽车前灯的长寿命金属卤化物灯,其可以在2000小时或更长时间内实现进一步改善的流明维持系数和其他寿命特性。