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    • 3. 发明授权
    • Metal halide lamp that has desired color characteristic and is prevented from non-lighting due to leakage of arc tube attributable to crack occurring at thin tube, and lighting apparatus adopting the metal halide lamp
    • 具有期望的颜色特性并且由于在细管处发生的裂纹引起的电弧管的泄漏而被防止不发光的金属卤化物灯以及采用金属卤化物灯的照明装置
    • US07423380B2
    • 2008-09-09
    • US11197850
    • 2005-08-05
    • Isao OtaKazuo TakedaKazushige Sakamoto
    • Isao OtaKazuo TakedaKazushige Sakamoto
    • H01J17/20H01J61/18
    • H01J61/125H01J61/827
    • Provided is a metal halide lamp capable of being dimmed, which is prevented from non-lighting due to leakage of an arc tube attributable to a crack occurring at thin tubes, as well as realizing a desired color characteristic. The metal halide lamp has an arc tube that includes an envelope made of translucent ceramic, a pair of electrodes, and metal halides, the metal halides including rare earth metal halide, sodium halide, and magnesium halide, the rare earth metal halide being at least one of dysprosium halide, thulium halide, holmium halide, cerium halide, and praseodymium halide, and the magnesium halide being at least one of magnesium iodide and magnesium bromide, where when a maximum lamp power P (W) is in a range of 70 W to 250 W, the following relations are satisfied: 0.0345A+0.0028B
    • 提供一种能够变暗的金属卤化物灯,由于由于在细管发生的裂纹而导致的电弧管的泄漏,防止了非点亮,并且实现了所需的颜色特性。 金属卤化物灯具有包括由半透明陶瓷制成的外壳,一对电极和金属卤化物的电弧管,所述金属卤化物包括稀土金属卤化物,卤化钠和卤化镁,所述稀土金属卤化物至少为 卤化镝,卤化钌,卤化钬,卤化铈和卤化镨中的至少一种,卤化镁是碘化镁和溴化镁中的至少一种,其中当最大灯功率P(W)在70W的范围内时 到250W,满足以下关系:<?in-line-formula description =“In-line formula”end =“lead”?> 0.0345A + 0.0028B <0.0015P + 0.0475; <?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line Formulas”end =“lead”?> A> = 0.021P + 0.313; 和<?in-line-formula description =“In-line Formulas”end =“tail”?> <?in-line-formula description =“In-line formula”end =“lead”?> B> = 10.0, <?in-line-formula description =“In-line Formulas”end =“tail”?>其中A(mg)表示金属卤化物的总含量,B(mol%)表示卤化镁的含量比 到金属卤化物。
    • 4. 发明授权
    • Metal halide lamp with specific dimension of the discharge tube
    • 金属卤化物灯具有放电管的特定尺寸
    • US6137229A
    • 2000-10-24
    • US140974
    • 1998-08-27
    • Yoshiharu NishiuraKazuo TakedaHiroshi NoharaKouichi SugimotoShiki NakayamaTakashi Yamamoto
    • Yoshiharu NishiuraKazuo TakedaHiroshi NoharaKouichi SugimotoShiki NakayamaTakashi Yamamoto
    • H01J61/30H01J61/82H01J17/16
    • H01J61/827H01J61/302
    • A metal halide lamp comprises a discharge tube of transparent ceramic in which a discharge metal is sealed, the discharge tube having a main cylindrical portion, ring portions provided at both ends of the main cylindrical portion, and tubular cylindrical portions provided at the ring portions; and a pair of electrodes inside the discharge tube; wherein a wall thickness .alpha. (in mm) of the main cylindrical portion satisfies the relation0.0023.times.W+0.22.ltoreq..alpha..ltoreq.0.0023.times.W+0.62,and a wall thickness .beta. (in mm) of the ring portion satisfies the relation0.0094.times.W+0.5.ltoreq..beta..ltoreq.0.0094.times.W+1.5,wherein W is the lamp power expressed in Watt. Alternatively, the discharge tube is air-tightly enclosed in the outer tube; the outer tube is filled with a gas comprising nitrogen gas; and the wall thickness .alpha. (in mm) of the main cylindrical portion satisfies the relation0.0023.times.W+0.12.ltoreq..alpha..ltoreq.0.0023.times.W+0.62,and the wall thickness .beta. (in mm) of the ring portion satisfies the relation0.0094.times.W+0.3.ltoreq..beta..ltoreq.0.0094.times.W+1.5,wherein W is the lamp power expressed in Watt. Thus, a metal halide lamp can be obtained that has a stable lifetime and considerably increased lamp efficiency compared to conventional high-color-rendition high-performance metal halide lamps using a quartz discharge tube.
    • 金属卤化物灯包括透明陶瓷的放电管,其中放电金属被密封,放电管具有主圆柱形部分,设置在主圆柱形部分两端的环形部分和设置在环形部分的管状圆柱形部分; 和放电管内的一对电极; 其中主圆柱形部分的壁厚α(以mm为单位)满足关系式0.0023×W + 0.22
    • 5. 发明授权
    • Metal halide lamp
    • 金卤灯
    • US06492764B2
    • 2002-12-10
    • US09912712
    • 2001-07-25
    • Kazuo TakedaYoshiharu NishiuraTakashi Maniwa
    • Kazuo TakedaYoshiharu NishiuraTakashi Maniwa
    • H01J102
    • H01J61/302H01J61/125H01J61/34H01J61/366H01J61/827
    • A metal halide lamp including a discharge tube of a transparent ceramic in which a discharge metal and a buffer gas are sealed, the discharge tube having electrodes at both ends thereof, including a discharge portion, slender tube portions provided at both ends of the discharge portion, into which feedthroughs including the electrodes and lead-in wires are inserted, and slender tube sealing portions in which gaps between the slender tube portions and the feedthroughs are sealed with a sealing material, an outer tube containing the discharge tube, and a transparent protecting cylinder provided inside the outer tube so as to surround the discharge tube is provided. At least one of the slender tube sealing portions is exposed beyond the protecting cylinder. This provides a metal halide lamp that suppresses leaks in a discharge tube sealing portion while maintaining high efficiency and high color rendition by using a ceramic discharge tube, and that is tolerant of an external shock.
    • 一种金属卤化物灯,包括密封放电金属和缓冲气体的透明陶瓷的放电管,其两端具有电极的放电管包括排出部,设置在排出部的两端的细长管部 插入包括电极和引入线的馈通,以及细长管密封部分,其中细长管部分和馈通部之间的间隙用密封材料密封,包含放电管的外管和透明保护 提供设置在外管内部以围绕放电管的圆筒。 细长管密封部分中的至少一个露出超过保护筒。 这提供了一种金属卤化物灯,其通过使用陶瓷放电管保持高效率和高显色性,并且耐受外部冲击,从而抑制放电管密封部分的泄漏。