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    • 2. 发明授权
    • Multiple-tube compact low-pressure discharge fluorescent lamp
    • 多管紧凑型低压放电荧光灯
    • US4853591A
    • 1989-08-01
    • US139626
    • 1987-12-29
    • Lutz KleinErnst PanofskiRoland Kastl
    • Lutz KleinErnst PanofskiRoland Kastl
    • H01J61/32H01J61/54
    • H01J61/327H01J61/545
    • At least two discharge units (2, 3; 14, 15, 16; 21, 22, 23, 27, 28, 29) areocated adjacent each other, each of the discharge units preferably including a unitary U-shaped tube having two longitudinal leg portions (2a, 2b; 3a, 3b) extending parallel to each other, and a cross portion (4, 5) connecting the leg portions at the base of the U. The free ends of the U are pinch-sealed and air-tight, and the two discharge units are so positioned relative to each other that the longitudinal leg portions extend parallel to each other, selectively, in a single plane, in parallel planes, or angled with respect to each other; the cross elements are located at adjacent end portions of the respective units. One filament-carrying electrode is sealed into one free end of one leg of one U-shaped tube of one unit, and another filament-carrying electrode is sealed into a free end of one leg of another unit; the units are cross-connected to provide a continuous discharge path, the cross connection being effected adjacent pinch-sealed ends of those legs of the U-shaped tubes which do not have filament-carrying electrodes sealed therein. To facilitate lamp starting, an auxiliary electrode (116) is pinch-sealed adjacent the cross connection, and coupled by an impedance (117) to the "hot" filament-carrying electrode.
    • 至少两个排出单元(2,3; 14,15,16; 21,22,23,27,28,29)彼此相邻地定位,每个排出单元优选地包括具有两个纵向 相互平行延伸的腿部(2a,2b; 3a,3b)和连接在U的底部的腿部的横截面(4,5).U的自由端被密封, 并且两个排出单元相对于彼此定位成使得纵向腿部部分在单个平面中以平行的平面相互平行地选择性地延伸或相对于彼此成角度地选择性地延伸; 十字元件位于相应单元的相邻端部处。 将一根长丝携带电极密封在一个单元的一个U形管的一条腿的一个自由端中,另一根灯丝承载电极被密封在另一个单元的一条腿的自由端中; 这些单元被交叉连接以提供连续的排放路径,该交叉连接是在不具有密封在其中的细丝携带电极的U形管的那些腿的相邻的密封端处实现的。 为了促进灯起动,辅助电极(116)被紧密地邻接于交叉连接处,并通过阻抗(117)耦合到“热”灯丝承载电极。