Projection arrangement for a head-up display (HUD) with p-polarised radiation

US12429690B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Jan HAGEN · Bonn, DE
• Klaus Fischer · Augsburg, DE
• Roberto Zimmermann · Solingen, DE
• Valentin SCHULZ · Niederzier, DE

Key dates

• Filing date: Jun 22, 2021
• Grant date: Sep 30, 2025
• Expiry date: Oct 4, 2042

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B2027/0194
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

A projection arrangement for a head-up display (HUD), includes a composite pane, which includes an outer pane and an inner pane joined to one another via a thermoplastic intermediate layer and has an HUD region; an electrically conductive coating on the surface of the outer pane or the inner pane facing the intermediate layer or within the intermediate layer; and an HUD projector, which is directed at the HUD region; wherein the radiation of the projector is p-polarised, wherein the electrically conductive coating includes a first dielectric layer or layer sequence, a first electrically conductive layer, a second dielectric layer or layer sequence, a second electrically conductive layer, a third dielectric layer or layer sequence, a third electrically conductive layer, a fourth dielectric layer or layer sequence, a fourth electrically conductive layer, and a fifth dielectric layer or layer sequence.