公开(公告)号：US3736453A

公开(公告)日：1973-05-29

申请号：US3736453D

申请日：1971-01-22

Applicant: CALIFORNIA INST OF TECHN

Inventor： MILLER C ,  BARTERA R

IPC: H01J61/52 ,  H01J61/86 ,  H01J1/02

CPC classification number: H01J61/526 ,  H01J61/86

Abstract: Arc stabilization resulting in greater steadiness, and increased power input resulting in increased and brighter light output in compact arc lamps are made possible by the use of magnetic fields or of equivalent mechanical motion to control the location of the attachment point of the arc to the anode. In one embodiment, magnets disposed within the anode and particularly, within a novel toroidal shaped anode are utilized to rotate the arc foot around a larger area of the tip. In another embodiment, magnets external to the lamp are utilized to the same effect. In yet another embodiment, mechanical movement of the anode causes the same effects. This allows increased power handling capability by tungsten-tipped anodes. For thin copper anodes, an improved cooling circuit allows the area of high efficiency heat exchange to coincide with the larger area of the anode subjected to arc attachment. Additionally, an axial gas circulating arrangement for the cathode can be pumped toward the flue of the toroidal anode to contribute to the cooling of both electrodes and the axial laminar jet of cooling gas around the arc stream is used to stabilize the arc, to increase the power input and the brightness of the lamp, and to increase the light output of the lamp.

Abstract translation: 通过使用磁场或等效的机械运动来控制电弧到阳极的连接点的位置，可以实现电弧稳定，从而实现更大的稳定性和增加的功率输入，从而导致紧凑型电弧灯增加和更亮的光输出 。 在一个实施例中，使用设置在阳极内，特别是在新颖的环形阳极内的磁体，以使电弧脚围绕尖端的较大区域旋转。 在另一个实施例中，灯的外部的磁体被用于相同的效果。 在另一个实施例中，阳极的机械运动产生相同的效果。 这允许钨尖端阳极增加功率处理能力。 对于细铜阳极，改进的冷却回路允许高效热交换的区域与经过电弧附着的阳极的较大区域一致。 另外，用于阴极的轴向气体循环装置可被泵送到环形阳极的烟道，以有助于两个电极的冷却，并且围绕电弧流的冷却气体的轴向层流射流用于稳定电弧，以增加 电源输入和灯的亮度，并增加灯的光输出。

公开(公告)号：US3769544A

公开(公告)日：1973-10-30

申请号：US3769544D

申请日：1972-06-19

Applicant: CALIFORNIA INST OF TECHN

Inventor： MILLER C

IPC: H01J61/26 ,  H01J61/86 ,  H01J61/98 ,  H01J61/28

CPC classification number: H01J61/26 ,  H01J61/86 ,  H01J61/98

Abstract: A high pressure Xenon short-arc lamp with two reservoirs which are selectively connectable to the lamp''s envelope is disclosed. One reservoir contains an absorbent which will absorb both Xenon and contaminant gases such as CO2 and O2. The absorbent temperature is controlled to evacuate the envelope of both the Xenon and the contaminant gases. Thereafter, the temperature of the absorbent is raised to desorb only clean Xenon while retaining the contaminant gases, thereby clearing the envelope of the contaminant gases. The second reservoir contains a gas whose specific purpose it is, by means of steps described in the disclosure, to remove the objectional metal film which deposits gradually on the interior surface of the lamp envelope during normal arc operation. The origin of this film is metal transferred from the cathode of the arc lamp by sputtering or other gas transfer processes. Since the cathodes in different lamps may, for particular purposes, be made of various metals, e.g. Tungsten, Nickel, Rhodium, Molybdenum, it is necessary to use a cleanup gas, and cleanup procedures, that are appropriate to the metal constituting the cathode surface, since it is the cathode surface material, which, transferred to the interior wall of the lamp envelope, constitutes the objectional metal film. Suitable gases and processing methods are described in the disclosure for a variety of cathode metals.

Abstract translation: 公开了具有可选择性地连接到灯的外壳的两个储存器的高压氙弧灯。 一个储存器包含吸收氙气和污染气体如二氧化碳和氧气的吸收剂。 控制吸收剂温度以排出氙气和污染气体的外壳。 此后，提高吸收剂的温度以仅吸收清洁氙气同时保留污染气体，从而清除污染气体的外壳。 第二储存器具有通过本公开中描述的步骤的具体目的的气体，以去除在正常电弧操作期间逐渐沉积在灯壳的内表面上的吸收金属膜。 该膜的原点是通过溅射或其它气体转移工艺从电弧灯的阴极转移金属。 由于不同灯具中的阴极可能为特定目的而由各种金属制成，例如， 钨，镍，铑，钼，由于阴极表面材料是转移到灯的内壁，所以需要使用清洁气体和适合构成阴极表面的金属的净化程序 信封构成异物金属膜。 本公开中对各种阴极金属描述了合适的气体和加工方法。