| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a thin push-button switch for an elevator reducing the number of components and having a simple structure and small depth dimension. <P>SOLUTION: A press part 1 is formed by a light guide plate. A central embossed part 2 is provided on the surface of the press part 1, and a peripheral embossed part 3 is provided on the back face. LEDs 6 are arranged on the side face in the lower side of the press part 1 so as to face each other, and vertically irradiate the central embossed part 2. LEDs 7 are arranged on the side face in the left side of the press part 1 so as to face each other, and laterally irradiate the peripheral embossed part 3. The height of the LEDs 6 from a substrate 4 is set higher than that of the LEDs 7, so as to prevent light from the LEDs 6, 7 from interfering with each other. <P>COPYRIGHT: (C)2007,JPO&INPIT |
