DOUBLE-MIRROR COMBINING GLASS FOR HEAD-UP DISPLAY

摘要

The invention concerns double-mirror combining glasses for head-up display. More particularly, it concerns a double-mirror combining glass for head-up display, comprising two mutually parallel substantially planar mirrors (2, 3) maintained fixed to each other by a retaining structure (4, 5, 6) which includes a central base plate (6), two lateral flanks (4) linked to the central base plate (6), two spacers (5) respectively linked to the lateral flanks (4) and enclosing between them the two mirrors (2, 3), an outer mirror (3) being enclosed between the free ends (51) of the spacers (5), an inner mirror (2) being enclosed between the ends (52), linked to the lateral flanks (4) and the spacers (5),the assembly formed by the mirrors (2, 3), the lateral flanks (4) and the spacers (5), having a plane of symmetry substantially orthogonal to the median plane of the mirrors (2, 3), the dimension (l3), from one spacer (5) to the other, of the outer mirror (3) being greater than the dimension (l2), from a spacer (5) to the other, of the inner mirror (2) and the median plane of each spacer being non-orthogonal to the median plane of the mirrors (2, 3). The invention can in particular be applied to a head-up display in the cockpit of an aircraft, preferably of the aeroplane type.