Robert Boschgmbh

Uwe Borsdorf

Waldemar Ernst

Bernhard Herzog

Harald Schach

Axel Kirschbaum

Christoph Jonda

Stefan Dagenbach

Siegfried Mezger

A lightable indicator scale device is created, in particular, for a combination instrument in a motor vehicle, and has a dial which has a first lightable indicator scale in a first area, a second lightable indicator scale in a second area and a third lightable indicator scale in a third area; a first light source device for lighting the first lightable indicator scale and the third lightable indicator scale; a second light source device for lighting the second lightable indicator scale; and a light guide device arranged between the first and second light source devices, on the one hand, and the dial, on the other hand, designed such that it guides light beams of the first light source device to the first area and to the third area; it prevents light beams of the first light source device from reaching the second lightable indicator scale directly; it guides the light beams directed at the third area through the second area, without light scattering into the second lightable indicator scale; and it guide light beams of the second light source device to the second area without light scattering into the first and third lightable indicator scales.

Illuminated-display graduated scale device

Growing community of inventors

Leonberg, Germany

Uwe Borsdorf