Push button cap for switching element, has guide bars used for forming light output path of light source into contact plate in polished manner, where plate and guide bars consist of selectable light-conducting material

摘要

The cap has a contact plate (2) including a tappet (3) projected at a lower side for performing a spot lighting process. Four isolatedly arranged light guide bars (4) are provided at corners of the contact plate around the tappet. A switching element (9) is operatable with the tappet. The guide bars are used for forming a light output path of a light source i.e. LED, into the contact plate in a polished manner. The contact plate is integrally formed with the guide bars, where the plate and the guide bars consist of selectable light-conducting material. The tappet is formed as a square tappet.