High Quality Content by WIKIPEDIA articles! The Heliodisplay is a free-space display developed by IO2 Technology. A projector is focused onto layers of air and micro-spheres in mid-air, resulting in a two-dimensional display that appears to float. This is similar in principle to the cinematic technique of rear projection and can appear three-dimensional when using appropriate content. As dark areas of the image may appear invisible, the image may be more realistic than on a projection screen, although it is still not volumetric. Looking directly at the display, one would also be looking into the projector's light source. The necessity of an oblique viewing angle (to avoid looking into the projector's light source) may be a disadvantage. Данное издание представляет собой компиляцию сведений, находящихся в свободном доступе в среде Интернет в целом, и в информационном сетевом ресурсе "Википедия" в частности. Собранная по частотным запросам указанной тематики, данная компиляция построена...