公开(公告)号：US09140972B2

公开(公告)日：2015-09-22

申请号：US14567718

申请日：2014-12-11

Applicant: THALES

Inventor： Sebastien Pelletier ,  Aude Gueguen ,  Matthieu Grossetete ,  Jean-Luc Bardon ,  Laurent Laluque

IPC: G03B21/60 ,  G02B27/01

CPC classification number: G03B21/60 ,  G02B5/18 ,  G02B27/0101 ,  G02B27/0172 ,  G02B2027/0123

Abstract: The general field of the invention is that of display systems comprising an image projector and an associated display screen, the said display system being designed to be used by an observer situated at a given location, the said display screen comprising two transparent and substantially parallel faces, the said display screen comprising, on at least one of its transparent faces, a plurality of regularly distributed light-scattering patterns. The image projector according to the invention illuminating the screen under a plurality of angles of incidence determined by the position and the size of the display screen, the said angles of incidence being centered on a mean angle of incidence, the scattering patterns comprise a diffractive structure in order to diffract the light rays having at least the mean angle of incidence in one or more directions corresponding to the said given location of the observer.

Abstract translation: 本发明的一般领域是包括图像投影仪和相关联的显示屏幕的显示系统的所述显示系统，所述显示系统被设计为由位于给定位置的观察者使用，所述显示屏幕包括两个透明且基本平行的面 所述显示屏在其至少一个透明面上包括多个规则分布的光散射图案。 根据本发明的图像投影仪以由显示屏幕的位置和尺寸确定的多个入射角照亮屏幕，所述入射角以入射角为中心，散射图案包括衍射结构 以便在对应于观察者的所述给定位置的一个或多个方向衍射具有至少平均入射角的光线。