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公开(公告)号:US4233542A
公开(公告)日:1980-11-11
申请号:US952369
申请日:1978-10-18
摘要: High-pressure discharge lamps, having a sealed discharge vessel surrounded by a sealed glass envelope, are known in which an oxidizable metal foil (e.g. of molybdenum) is located, in the space between the vessel and the envelope substantial on the axis of the vessel and is electrically in series with the discharge path. If the envelope is fractured for any reason and the lamp is subsequently ignited, the temperature of the foil is increased due to the discharge current passing through it. The foil is oxidized, and hence fractured, by the air which has permeated said space and the lamp is, extinguished. Such oxidation and fracture normally takes about ten minutes. In accordance with the invention, the foil (14) in the space between the envelope (1) and vessel (2) is arranged close to the wall of the vessel adjacent to an electrode (6) so as to be heated mainly by heat generated in the vessel. This reduces the fracturing time to about one minute.
摘要翻译: 具有由密封的玻璃外壳包围的密封放电容器的高压放电灯是已知的,其中可容纳氧化的金属箔(例如钼)位于容器和外壳之间的空间中,实质上位于容器的轴线上 并与放电路径电串联。 如果由于任何原因包络线断裂,并且灯随后被点燃,则箔片的温度由于放电电流通过它而增加。 箔片被透过所述空间的空气氧化并因此被断裂,灯熄灭。 这种氧化和断裂通常需要大约十分钟。 根据本发明,在封套(1)和容器(2)之间的空间中的箔(14)靠近与电极(6)相邻的容器的壁布置,以便主要通过产生的热量被加热 在船上 这将压裂时间减少到约1分钟。
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公开(公告)号:US4129802A
公开(公告)日:1978-12-12
申请号:US830650
申请日:1977-09-06
CPC分类号: H01J61/545
摘要: A low-pressure mercury vapor discharge lamp having an internal transmissive starting strip with two separate parts. The separation between the parts is bridged by a narrow straight or helix-shaped conductive connecting strip to bring the total resistance of the starting strip to a value between 50,000 and 150,000 ohms.
摘要翻译: 一种低压汞蒸气放电灯,具有两个分开的部分的内部透射起始条。 部件之间的间隔由狭窄的直线或螺旋状导电连接条桥接,使起始条带的总电阻达到50,000至150,000欧姆之间的值。
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公开(公告)号:US4757427A
公开(公告)日:1988-07-12
申请号:US921711
申请日:1986-10-21
申请人: Franciscus M. P. Oostvogels , Charles C. E. Meulemans , Adrianus P. Severijns , Petrus J. W. Severin
发明人: Franciscus M. P. Oostvogels , Charles C. E. Meulemans , Adrianus P. Severijns , Petrus J. W. Severin
CPC分类号: H01J61/86 , H01J61/025
摘要: The irradiation device comprises a short arc discharge lamp, in which a pair of electrodes are arranged, between which a discharge path extends. An optical conductor is sealed with its first end into the wall of the lamp vessel in such a manner that its light entrance window is arranged laterally of the discharge path and is directed to the discharge path.
摘要翻译: 照射装置包括短电弧放电灯,其中布置有一对电极,放电路径延伸在其间。 光导体以其第一端密封在灯室的壁上,使其光入口窗口布置在排放路径的横向并被引导到排放路径。
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4.
公开(公告)号:US4588919A
公开(公告)日:1986-05-13
申请号:US597977
申请日:1984-04-09
CPC分类号: H01J61/26
摘要: A low-pressure alkali metal vapor discharge lamp has a getter for bi- and triatomic gases and a getter holder in the arc tube near at least one electrode. The electrodes need be heated less strongly during evacuation of the prior to final dosing, as a result of which no emitter material of the electrodes is lost. The ignition voltage is considerably lower than that of conventional lamps without a getter.
摘要翻译: 低压碱金属蒸汽放电灯具有用于双和三原子气体的吸气剂和在至少一个电极附近的电弧管中的吸气剂保持器。 在最后一次给药之前排气期间,电极不需要加热,因此电极的发射体材料不会损失。 点火电压远低于没有吸气剂的常规灯的点火电压。
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