公开(公告)号：US5929565A

公开(公告)日：1999-07-27

申请号：US806515

申请日：1997-02-24

申请人： Shouichi Mayama ,  Susumu Nakanishi

发明人： Shouichi Mayama ,  Susumu Nakanishi

IPC分类号： H01J61/16 ,  G03F7/20 ,  H01J61/073 ,  H01J61/86 ,  H01J17/04

CPC分类号： G03F7/70016 ,  H01J61/073

摘要： A discharge lamp of the short arc type including an arc tube and an anode and cathode within the arc tube positioned opposite one another. The present invention includes an anode arrangement in which the temperature increase of the anode in luminous operation is suppressed as much as possible, in which blackening of the inside wall of the arc tube as a result of premature vaporization of the anode material is suppressed, and in which the durability of the above described lamp is prolonged. Specifically, the outer surface of the anode includes sintered layers of fine-particle tungsten adjacent the tip of the anode. In this way, the effective surface area of the anode is increased, the heat radiation from the anode is accelerated, and the premature vaporization of the anode material is suppressed.

摘要翻译： 一种短弧型放电灯，其包括在电弧管内相对设置的电弧管和阳极和阴极。 本发明包括一种阳极装置，其中尽可能地抑制发光操作中的阳极的温度升高，其中由于阳极材料的过早蒸发导致的电弧管内壁的黑化被抑制，以及 其中延长了上述灯的耐久性。 具体地，阳极的外表面包括邻近阳极尖端的细颗粒钨的烧结层。 以这种方式，阳极的有效表面积增加，来自阳极的热辐射被加速，并且阳极材料的过早蒸发被抑制。

公开(公告)号：US5920152A

公开(公告)日：1999-07-06

申请号：US938749

申请日：1997-09-26

申请人： Yukio Yasuda ,  Masanori Sugihara ,  Shouichi Mayama

发明人： Yukio Yasuda ,  Masanori Sugihara ,  Shouichi Mayama

IPC分类号： H01J61/16 ,  G03F7/20 ,  H01J61/073 ,  H01J61/12 ,  H01J61/86 ,  H01J61/88 ,  H01J17/04

CPC分类号： G03F7/70016 ,  H01J61/0732 ,  H01J61/12 ,  H01J61/86

摘要： A mercury lamp of the short arc type with high radiant efficiency which satisfies the demand for an increase of the radiation amount of the light source, by suppressing the motion of the bright spot in the vicinity of the cathode tip suppresses the flickering of the irradiance and thus increases the arc stability, is achieved in a mercury lamp of the short arc type in which within an arc tube mercury and at least one rare gas are encapsulated, by either at least Ar being filled as the rare gas at an filling pressure of from 1 to 8 atm, and by the current density in the tip area of the cathode being 10 to 250 A/mm.sup.2 or alternatively, at least Kr being filled as the rare gas at an filling pressure of from 1 to 8 atm, and the current density in the tip area of the cathode being 10 to 310 A/mm.sup.2 during operation of the lamp. By operation of the above described lamp in a vertical orientation with the anode positioned above the cathode a further contribution to the attainment of the noted advantages is achieved.

摘要翻译： 通过抑制阴极尖端附近的亮点的运动，能够满足对光源的照射量的增加的要求的具有高辐射效率的短弧型的水银灯抑制辐照度的闪烁， 从而提高了电弧稳定性，在短弧型汞灯中，在电弧管汞管和至少一种稀有气体被封装的情况下，通过至少Ar以填充压力从而填充稀土气体来实现 1至8个大气压，并且阴极的尖端区域中的电流密度为10至250A / mm 2，或者至少Kr以1至8atm的填充压力填充为稀有气体，并且电流 在灯的操作期间，阴极的尖端区域的密度为10〜310A / mm2。 通过在阳极位于阴极上方的垂直方向上操作上述灯，实现了对所述优点的实现的进一步贡献。