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:
Apr. 21, 2025
Filed:
Oct. 07, 2021
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Michael Arthur Janzer, Unterschleissheim, DE;
Bayerische Motoren Werke Aktiengesellschaft, Munich, DE;
Abstract
A projection display device includes an imaging unit; a planar waveguide with a light decoupling face for a light beam bundle produced by the imaging unit; an at least partially transparent reflection plate arranged in the field of view of a user and configured to reflect a light beam bundle decoupled from the waveguide to an eyebox predetermined for the user's eyes; an eye-tracking device configured to determine an eyebox window which is currently occupied by the user's eyes; and a dynamic scattered light absorber, which, to shadow the light decoupling face in a surface portion which is dynamically adjustable depending on a signal of the eye-tracking device and which extends starting from at least one of the edges of the light decoupling surface, is configured to at least partially limit the decoupled light beam bundle to the current eyebox window.