| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a push-button switch for constituting a small operation panel, arranged at a small pitch on the face plate of an elevator operation panel. <P>SOLUTION: This push-button switch A has a pressing part 1 formed of a light transmissive material, and LEDs 31, 32 and 33 as first, second and third light sources are oppositely arranged on a side surface of this pressing part 1, and a surface area of the pressing part 1 corresponding with respective light sources is illuminated by lighting of these LREDs 31, 32 and 33. The LEDs 31, 32 and 33 as the first, second and third light sources are collectively arranged on one side of the pressing part 1. <P>COPYRIGHT: (C)2010,JPO&INPIT |
