Indicating device
AssigneeMannesmann VDO AG
InventorsHeinrich Noll, Helmut Wolf, Thorsten Wend, Matthias Rein
Life of this patent
Estimating the term…
Abstract
In an indicating instrument, especially in a motor vehicle, having a cover glass (4) that appears dark and, under incident light, prevents any view of a dial (3) arranged at a distance behind it, and having at least one light source (8) arranged behind the dial (3) to transilluminate said dial (3) and therefore render the dial (3) visible through the cover glass (4). In order to prevent the dial (3) becoming visible when there is only incident light, the transmission of the dial (3) is matched to the transmission of the cover glass (4). To this end, in particular, the dial (3) is provided with a low transmission.
Claims15
An indicating instrument, comprising
- a cover glass,
- a dial arranged at a distance behind the cover glass, the cover glass appearing dark and, under incident light, eliminating any view of said dial arranged behind said cover glass, and
- at least one light source arranged behind the dial to transilluminate said dial such that the dial is visible through the cover glass, wherein,
- transmission of the dial (3) is matched to transmission of said cover glass (4) so as to prevent the dial (3) from becoming visible when there is only incident light.
Dependencies are inferred from the claim text.