MULTIFOCAL STEREO DISPLAY Russian patent published in 2003 - IPC

FIELD: information displays, personal displays of helmet type. SUBSTANCE: technical result of invention consists in provision for natural stereoscopic vision at great range of distances to objects, in enhanced extent of accommodation of eyes and in diminished difference between accommodation and convergence of eyes. In correspondence with invention each display channel connected to video controller and including fiber-optical light source, focusing lens and two-coordinate scanner is added with multifocal eye-piece made up of expander of light beams, light splitting plate and two spherical concave mirrors placed on its opposite sides. Each mirror carries two confocal reflection layers. EFFECT: increased efficiency of visualization. 1 cl, 4 dwg