Dial
AssigneeSiemens Aktiengesellschaft
InventorsBernward Kneer, Ingo Kopsieker
Life of this patent
Estimating the term…
Abstract
A dial for an indicating instrument, in particular in a motor vehicle. The dial comprises an optically conducting basic body whose outside is shaped as a two-stage cone. Except for light passages (10) forming symbols, the outside is covered by an opaque layer (9), the light, which hag previously been coupled into the basic body (2), exiting there. A special feature is that the basic body (2) is produced by injection molding, and this permits the production of a non-planar outer surface, the opaque layer (9) itself being produced on the outer surface.
Claims11
A dial for an indicating instrument, in particular in a motor vehicle, comprising an optical conductor as a basic body with symbols displayed on its outside, which faces a viewer, wherein said outside has a substantially opaque layer which is provided with light passages forming the symbols, wherein the basic body (2) is produced by injection molding and the outside has surface regions (5, 7) with the light passages (10) which are inclined relative to one another,
- wherein the basic body (2) has an inwardly situated annular region (5) and a more outwardly situated annular region (7), whose outsides are formed in each case by a conical surface, the conical surface of the outwardly situated annular region (7) being steeper than that of the inwardly situated annular region (5).
A dial for an indicating instrument, in particular in a motor vehicle, comprising an optical conductor as a basic body with symbols displayed on its outside, which faces a viewer, wherein said outside has a substantially opaque layer provided with light passages forming the symbols, wherein said opaque layer is produced on an cuter surface of said basic body and applied to said basic body using a coating method,
- wherein the basic body (2) is produced by injection molding and the outside has surface regions (5, 7) with the light passages (10) which are inclined relative to one another,
- wherein the basic body (2) has an inwardly situated annular region (5) and a more outwardly situated annular region (7), whose outsides are formed in each came by a conical surface, the conical surface of the outwardly situated annular region (7) being steeper than that of the inwardly situated annular region (5).
Dependencies are inferred from the claim text.