-
公开(公告)号：US3939386A
公开(公告)日：1976-02-17
申请号：US545638
申请日：1975-01-30
CPC分类号： H01T19/00 , G03G15/0291
摘要： A technique for charging a dielectric surface by corona discharge is described in which the voltage applied to a stationary corona wire is steadily increased over an initial time period to cause the gradual increase in voltage level on the dielectric surface over the same time period. The voltage on the stationary dielectric surface increases with the wire voltage. The potential difference between wire and plate is kept below the sparking voltage, but above the corona current threshold voltage.After the initial phase, the dielectric surface is moved relative to the corona wire (e.g. a rotating xerographic drum). The corona wire can now be held at its high voltage without sparking between the wire and the dielectric surface.
摘要翻译： 描述了通过电晕放电对电介质表面进行充电的技术，其中施加到静止电晕丝的电压在初始时间段内稳定地增加，以使电介质表面上的电压电平在相同时间段内逐渐增加。 固定电介质表面上的电压随着电线电压而增加。 电线和电极之间的电位差保持低于火花电压，但高于电晕电流阈值电压。
-
公开(公告)号：US4005332A
公开(公告)日：1977-01-25
申请号：US595936
申请日：1975-07-14
CPC分类号： H01J61/523
摘要： A technique is disclosed herein for the enhancement of efficiency, and uniformity of light emission from a DC-operated fluorescent lamp. It involves the correlation of mercury vapor pressure within the lamp (which is dependent upon the temperature of liquid mercury within the lamp) with the magnitude and polarity orientation of the DC current applied to the lamp, and an optimization of these parameters along with lamp tube diameter.
摘要翻译： 本文公开了一种用于提高效率以及来自直流操作荧光灯的发光均匀性的技术。 它涉及灯内的汞蒸气压（其取决于灯内的液态汞的温度）与施加到灯的直流电流的大小和极性方向的关联，以及这些参数与灯管的优化 直径。
-
公开(公告)号：US4080545A
公开(公告)日：1978-03-21
申请号：US754782
申请日：1976-12-27
申请人： Charles F. Gallo
发明人： Charles F. Gallo
CPC分类号： H01J61/74 , H01J61/35 , H01J61/523
摘要： Various sodium vapor lamp configurations are disclosed. In one, a sodium vapor discharge tube contains an excess of sodium which is condensed in predetermined locations, as for example dimples. To prevent condensation in the aperture through which light emission is desired, the discharge tube is heated at the aperture by ohmic heating of a conductive film such as tin oxide or by fine wires. In a second configuration, the discharge tube is coated on the inside with metallic sodium, the coating being internally reflective and defining an aperture, such as a slit, through which light output is directed. The aperture area is coated with a conductive coating such as tin oxide to provide ohmic heating of the aperture area so that metallic sodium condenses on the tube in areas other than the aperture. Thus, an excess of sodium is provided to control the lamp vapor pressure and also to form a light reflective coating to direct emission through the aperture.
摘要翻译： 公开了各种钠蒸汽灯配置。 一方面，钠蒸汽放电管含有过量的钠，其在预定位置凝结，例如凹坑。 为了防止需要发光的孔径中的冷凝，通过诸如氧化锡的导电膜或细线的欧姆加热在放电管处加热放电管。 在第二种配置中，放电管在金属钠上涂覆在内部，该涂层是内部反射性的，并且限定了光输出被引导通过的孔，例如狭缝。 孔径区域涂覆有诸如氧化锡的导电涂层，以提供孔径区域的欧姆加热，使得金属钠在孔以外的区域中冷凝。 因此，提供过量的钠以控制灯蒸汽压力，并且还形成光反射涂层以引导通过孔的发射。
-
-
搜索结果
3 条记录 (耗时 0.016 秒)
