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1. 发明公开

EP1324641A2 Signal lamps and apparatus 有权
标题翻译： Signallampen undGerät
公开(公告)号：EP1324641A2
公开(公告)日：2003-07-02
申请号：EP02257563.3
申请日：2002-10-31
申请人： WESTINGHOUSE BRAKE AND SIGNAL COMPANY LIMITED
发明人： Tichborne, Frank George , Burton, Colin
IPC分类号： H05B33/08
CPC分类号： H05B33/0806 , B61L5/1881 , B61L2207/02 , H05B33/0887 , H05B33/0893 , H05B37/04
摘要： An LED signal lamp comprises at least two separate LED arrays which have separate power feeds and wherein the LEDs of the arrays are positioned with respect to each other such that when lit they provide a composite light signal output and such that when the LEDs of only one of the two arrays are lit they provide a light signal with a visible distinctive pattern. A distinctive pattern is revealed, either lit or dark. Typically this pattern may be formed as a letter such as "X" or "F" or may be formed as a striped effect, for example.
An LED signal apparatus comprises input signal power supply terminals 7,8 for the apparatus; a series connection of switch means S1 to S4 and a ballast load 6 connected across the supply terminals 7,8; an LED signal lamp1,2 connected to the terminals to be supplied with current therefrom; and switch operating means D1 to D4, in the supply path to the LED lamp, for controlling the state of the switch means S1 to S4 in the series connection, whereby total failure or substantially total failure of the current to the LED signal lamp results in said switch operating means D1 to D4 causing said switch means to open to disconnect the ballast load 6 from power from the supply terminals 7,8.
摘要翻译： LED信号灯包括至少两个分开的LED阵列，其具有单独的功率馈送，并且其中阵列的LED相对于彼此定位，使得当点亮时，它们提供复合光信号输出，使得当仅一个LED 两个阵列被点亮，它们提供具有可见特征图案的光信号。一个独特的模式被揭示，无论是点燃还是黑暗。通常，该图案可以形成为诸如“X”或“F”的字母，或者可以形成为例如条纹效果。 LED信号装置包括用于装置的输入信号电源端子7,8; 开关装置S1至S4的串联连接和连接在供电端子7,8上的镇流器负载6; 连接到要从其提供电流的端子的LED信号灯1,2; 以及在LED灯的供给路径中的开关操作装置D1至D4，用于控制串联连接中的开关装置S1至S4的状态，由此导致LED信号灯的电流的完全故障或基本上完全故障导致所述开关操作装置D1至D4使所述开关装置打开以将镇流器负载6与供电端子7,8的电力断开。

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