FIELD: physics.
SUBSTANCE: virtual helmet, each channel of which consists of a contextual display, a semitransparent mirror and a positive lens, in the focal plane of which a contextual display is installed, and on the optical axis formed by the semitransparent mirror, a focal display is arranged. Between the semitransparent mirror and the focal display, an optical system is installed from two identical positive lenses, the distance between which is equal to two focal distances or focal distance, and the focal display is installed in the focal plane of the lens. In other embodiments between the semitransparent mirror and the focal display there is an optical system of two identical positive lenses and a flat mirror, distance between lenses is equal to two focal distances or focal distance, and focal display is installed in focal plane of lens. Lenses and the mirror can be mounted in the form of a rectangular isosceles prism, on the plane of the legs of which there are lenses, and on the plane of the hypotenuse - a flat mirror.
EFFECT: technical result is the absence of interference from the focal display when viewing the contextual display and no change in magnification of the focal display when its position changes along the optical axis.
6 cl, 2 dwg
