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:
Feb. 26, 2013
Filed:
Oct. 12, 2010
Gerhard Mathes, Udenheim, DE;
Gunther Heim, Lampertheim, DE;
Dino Demma, Rüsselsheim, DE;
GM Global Technology Operations LLC, Detroit, MI (US);
Abstract
A vehicle is provided with transparent roof area having at least one roof window tailored to fit into the roof structure. An adjustable darkening against exposure to incident light is provided toward the passenger compartment. The roof area has a first optically structured, immovably fixed surface and a second optically structured, movable surface. The first and second surfaces are arranged one over the other. The second surface here abuts the first surface so that it can slide over it. While the first surface takes up the entire roof window, the second surface is arranged at least in partial areas of the roof window. The second surface is arranged so that it can move relative to the first surface in such a way that the optical structures lying one over the other alter the incident light as a function of position.