Windscreen having a particular reflection direction to reflect optical signals into the field of vision of the driver

Abstract

Abstract A windscreen (1) for automobile vehicles is provided with a reflecting device (6) for displaying information or optical signals in the field of visibility of the windscreen (1). According to the invention, the reflecting device (6) is a hologram having the properties of a mirror. The angle of reflection alpha of the holographic mirror is different from the angle of reflection beta of the surface of the glass. In this way, the eye (8) of the observer does not receive rays R' reflected by the surface of the glass, but only rays R reflected by the holographic mirror. In the case of a curved windscreen, a hologram acting as a plane mirror is arranged on a curved support layer so as to correspond with the shape of the windscreen such that, even in the case of a curved windscreen, the reflected image of the information or of the optical signals is free of optical aberration. <IMAGE>

Inventors

• 👤 Armin Felske
• 👤 Bernd Stoffregen
• 👤 Manfred-Andreas Beeck
• 👤 Gerd Sauer
• 👤 Michael Hassiepen
• 👤 Detlev Rebenstorff

Bibliographic Details