Patent · US Active

Projection arrangement for a head-up display (HUD) with P-polarised light portions

US11526009B2 · kind B2 · utility

1Cited by

2References

20Claims

0Family size

Assignee

SAINT-GOBAIN GLASS FRANCE · FR

Inventors

Klaus Fischer · Augsburg, DE
Dagmar Schaefer · Portland, US
Roberto Zimmermann · Solingen, DE
Valentin SCHULZ · Niederzier, DE

Key dates

Filing date	Feb 4, 2019
Grant date	Dec 13, 2022
Priority date	—
Expiry date	Dec 24, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG02B2027/0194
WIPO fieldOptics
WIPO sectorInstruments

Abstract

A projection arrangement for a head-up display, including a composite pane, including an outer pane and an inner pane, which are joined to one another via a thermoplastic intermediate layer, having an upper edge and a lower edge and an HUD region; an electrically conductive coating on the surface of the outer pane or the inner pane facing the intermediate layer or provided within the intermediate layer; and a projector that is aimed at the HUD region; wherein the light of the projector has at least one p-polarised portion and wherein the electrically conductive coating has, in the spectral range from 400 nm to 650 nm, only a single local reflection maximum for p-polarised light, with this maximum in the range from 510 nm to 550 nm.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.