The invention relates to an apparatus for viewing augmented reality, comprising: a mask (16) comprising a mounting (22) defining a bearing surface (24) on the face of a user, and a strap (20) for retaining the mounting (22) a semitransparent screen (76) attached to the mounting (22) and a system (82) for projection onto the screen (76). The mounting (22) comprises a tubular body (22A) defining a flexible and extensible frame (23) that supports the bearing surface (24) and a stiffening band (26) in which a visor (28) is attached. The body (22A) is defined, between the frame (23) and the band (26), by a flexible, resilient mesh (32) and, on the sides, by rigid sidewalls (30A, 30B) onto which the retaining strap (20) is attached via the ends thereof, said rigid sidewalls (30A, 30B) defining, with the band (26), a resilient return hinge. The bearing surface (24) is defined by an inextensible strap (102) connected, at each of the ends thereof, only in the vicinity of the free ends of the sidewalls (30A, 30B), thereby enabling the strap (102) to be tensioned when the sidewalls (30A, 30B) are spaced apart so as to ensure that the spacing between the strap (102) and the screen (76) is maintained.Léquipement de vision en réalité augmentée comporte : - un masque (16) comportant une monture (22) délimitant une surface dappui (24) sur le visage dun utilisateur et un bandeau (20) de retenue de la monture (22), un écran (76) semi-transparent fixé à la monture (22), et une chaîne de projection (82) sur lécran (76). La monture (22) comporte un corps (22A) tubulaire délimitant un cadre (23) souple et extensible portant la surface (24) dappui et un cerclage (26) dans lequel est fixée une visière (28) assurant la rigidification. Le corps (22A) est délimité entre le cadre (23) et le cerclage (26) par un treillis (32) souples et élastiques et, latéralement, par des flancs rigides (30A, 30B) sur lesquels est fixé le bandeau de retenue (20) depuis ses extrémités, lesquels flancs rigides (
