10-04-2017, 08:18 PM
Project Report on Heliodisplay
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INTRODUCTION
Over the years, display technology has been growing, from simple CRT
to plasma screen. But now display technology has reached a stage where images can
be displayed in thin air without the aid of a screen. A technology used for displaying
images in thin air is called Heliodisplay. Heliodisplay is a technology developed by
Chad Dyner, CEO for IO2 Technologies. In the Heliodisplay, a projector is focused
onto a layer of mist in mid-air, resulting in a two-dimensional display that appears to
float. This is similar in principle to the cinematic technique ofrear projection. 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.
BASIC UNITS
Heliodisplay projects images as shown in figure 2.1. The basic units of
heliodisplay are base unit and projection source as shown in figure 2.2. The projection
source unit projects images onto the mid-air. The base unit produces the water vapour
screen necessary to display the image. The image can be viewed from behind the base
unit. The Heliodisplay is designed to be hidden (into a pedestal, table etc), so that
only its projected image is visible.
WORKING
Heliodisplay can receive input from a computer, television, or even from
video game consoles, and project the image on a floating screen of air. The image can
even give the appearance of a floating, holographic, 3-D image. Essentially, the
device converts the imaging properties of the air so that the air is taken in, converted
instantaneously, and then re-ejected out. Then projects onto that converted air. After
air is drawn into the machine, it moves through a dozen metal plates and then comes
out again. The system creates a dynamic, non-solid particle cloud by ejecting
atomized condensate present in the surrounding air, in a controlled fashion, into an
invisible particle cloud. It is electronic as well as thermodynamic. No moving parts
are involved. The device works by creating a cloud of microscopic particles that make
the air image-friendly. Light is forward transmitted to create visible images. Thus
image is displayed as in figure 2.3.
CONCLUSION
The heliodisplay is a relatively new technology and is still being
developed. Heliodisplay works as a kind of floating display and touch screen, making
it possible to manipulate images projected in air with our fingers. Though it has some
flaws the attention that it brings is enormous. Its various applications such as in
advertising, a board room etc suggests that its future scope is very large.