The Heliodisplay is an air-based display that uses water condensed from the air already present in the operating environment. The system, developed by IO2 Technology in 2001, uses a projection unit focused onto multiple layers of air and micron-sized atomized particles in midair, resulting in a two-dimensional display with no visible projection surface. This is similar in principle to the cinematic technique of rear projection. As dark areas of the image may appear invisible, the image may be more realistic than on a projection screen, although it is not volumetric. The system may be viewed fr
The Heliodisplay is an air-based display that uses water condensed from the air already present in the operating environment. The system, developed by IO2 Technology in 2001, uses a projection unit focused onto multiple layers of air and micron-sized atomized particles in midair, resulting in a two-dimensional display with no visible projection surface. This is similar in principle to the cinematic technique of rear projection. As dark areas of the image may appear invisible, the image may be more realistic than on a projection screen, although it is not volumetric. The system may be viewed from both front and back when combined with two light sources, but an oblique viewing angle of ±30 degrees may be required for various configurations due to the rear-projection requirement.
The Heliodisplay can operate as a free-space touchscreen, with the "i" models containing an embedded processor to detect touches without the IR laser grid that previous models required. Beginning with the original 2001 prototype, the Heliodisplay could be used as a pointing device if the supplied software was installed.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).