The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 05, 2017
Filed:
Jul. 07, 2015
Applicant:
Audi Ag, Ingolstadt, DE;
Inventors:
Matthias Wunderlich, Ingolstadt, DE;
Lutz Diederichs, Koesching, DE;
Assignee:
AUDI AG, Ingolstadt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01D 13/22 (2006.01); G01D 11/28 (2006.01); G12B 11/04 (2006.01); B60K 35/00 (2006.01); G02B 6/00 (2006.01);
U.S. Cl.
CPC ...
G12B 11/04 (2013.01); B60K 35/00 (2013.01); G01D 11/28 (2013.01); G01D 13/22 (2013.01); G02B 6/00 (2013.01);
Abstract
A pointer needle for an indication device of a motor vehicle has a transparent optical waveguide that receives light propagating along a direction of propagation at a light-entry side, and emits the light in an emission direction at a light-exit side. The optical waveguide has a scattering side opposite to the light-exit side, the scattering side having steps arranged offset to one another across the propagation direction. When the steps are irradiated by light, the pointer needle provided in the indication device can clearly be perceived in the dark.