Laminated glass windscreen intended to be used at the same time as a HUD system reflector

a technology of laminated glass and reflector, applied in the direction of windscreens, windows, instruments, etc., to achieve the effect of enhancing brightness and avoiding double images
US20050142332A1Inactive Publication Date: 2005-06-30SAINT GOBAIN VITRAGE SA
9 Cites 87 Cited by

Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
SAINT GOBAIN VITRAGE SA
Publication Date
2005-06-30
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A laminated safety glass windscreen, which can also be used as a reflector in a HUD system, comprises at least first and second panes and a thermoplastic intermediate layer which joins these panes together. The cross-section of the intermediate layer is in the shape of a wedge, decreasing in thickness from top to bottom. The thermoplastic intermediate layer may be composed of two sheets, one of which is provided with a colored filtering strip and has a wedged cross-section conditioned by the appearance of this filtering strip. The other sheet has a wedged cross-section such that the two sheets together have the prescribed convergence angle for using the windscreen as a reflector.
Need to check novelty before this filing date? Find Prior Art

Description

BACKGROUND OF THE INVENTION

[0001] 1. Field of the Invention

[0002] The present invention relates to a laminated glass windscreen having a predetermined taper angle and intended to be used at the same time as a reflector in a HUD system.

[0003] 2. Discussion of the Background

[0004] It is known that the reflection of light rays from the surfaces of glass increases with the angle of incidence. In the case of windscreens which are fitted with a large angle of inclination, objects situated inside the vehicle and below the windscreen are visible to the driver in the windscreen, which acts as a mirror. This effect can be exploited, for example by projecting optical information onto the windscreen. In this regard, however, ordinary windscreens with parallel faces present the problem that the light rays, which are reflected both by the interior surface and by the exterior surface of the windscreen, present the observer with two images which are offset relative to one another.

[0005] It is ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More