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.

Date of Patent:
May. 02, 2017

Filed:

Nov. 20, 2015
Applicant:

Audi Ag, Ingolstadt, DE;

Inventor:

Matthias Wunderlich, Ingolstadt, DE;

Assignee:

AUDI AG, Ingolstadt, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 5/00 (2006.01); G02B 27/01 (2006.01); G02B 27/00 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); G02B 27/0093 (2013.01); G02B 2027/014 (2013.01); G02B 2027/0118 (2013.01);
Abstract

A method for reducing reflection when operating a head-up display of a motor vehicle. The head-up display includes a covering disk element and a dimming element for dimming a deflected light beam of ambient light. A control device determines a light beam path of the deflected light beam, determines a current position and orientation of the dimming element, and determines a region to be kept free of the deflected light beam around the eye point of a user. Based on this, the control device determines whether the deflected light beam passes through the area to be kept free. If so, the control device generates a control signal for adjusting a position of the dimming element to dim the deflected light beam with an adjustment device, and the adjustment device adjusts the position of the dimming element depending on the control signal.


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