A presentation on HELIODISPLAY - a technique od displaying data on thin air.
HeliodisplayPresented by :
Lakshmi Narayanan G S7,ECE 13100048
Introduction History Functional overview Principle Building blocks Key features Requirements Advantages Disadvantages Applications Conclusion References
Whats HELIODISPLAY ?Heliodisplay is a technology used for displaying images in mid air.
In Heliodisplay, a projector focuses the image onto a layer of mist in mid-air.
Contd Results in a two-dimensional display that appears to float. Similar to Conventional Rear Projection technique. No physical screen required.
History Developed by Chad Dyner, CEO of IO2 technologies.
In 2005 US patent office granted Dyner patent for his product (HELIODISPLAY) Dyner found IO2 technologies to commercialize Heliodisplay.
AIR HEAT PUMP Cools it to a level below its dew point
STORES THE CONDENSED PARTICLE CLOUD
PROJECTION SCREEN Screen created by an invisible layer of fine water vapour
For creating artificial screens
Contd Fine water vapour, suspended in mid air to create nearly invisible screen. This vapour curtain(screen) is sandwiched between layers of clean air to create an acceptable screen.
The vapour screen is a particle cloud
created by passing the surrounding air through a heat pump which in turn cools the air to a level below its dew point. These particle cloud consists of individual micro-droplets, held together by surface tension.
PRINCIPLE AND WORKING
Base Unit :
Converts the imaging properties of the air so that the air is taken in, converted instantaneously, and then re-ejected out. Creates a dynamic, non solid particle cloud by ejecting atomized condensate from air.
Projector projects the given input on the newly created invisible screen. Similar to rear view projector. Higher quality image delivery output.
A Heliodisplay setup :
Contd Extraction Device : Condensates the air. Extraction storage : The extracted condensate is stored in a storage vessel. : alters the condensate by mechanical, acoustical, electrical or chemical means, or a combination of these.
Particle cloud Manufacture
Contd Particle cloud
delivery device : Ejects the microscopic particle cloud ( Screen) EMC system : Controller & sensor together. adjusts screen density, Velocity, Temperature, Humidity etc. : Converts signals from external sources to the Processor.
optional scan converter
HELIOCAST : Allows the image to serve as an input/output (I/O) device . Physical intrusion within the input detectable space of particle cloud , such as a user's finger, a stylus or another foreign object, is recognized as an input instruction. Reflected light scattered off the user's finger or other input means is captured by optical sensor.
Contd Light beyond the frequency response bandwidth of the sensor is ignored or minimized, for better Noise immunity. The space coordinate of intrusion in space where the intrusion is lit by the functions as a mouse cursor, analogous to a virtual touch-screen. controller reads and interprets the highlighted input data (coordinate) using blob recognition or gesture recognition software at Processor.
KEY FEATURES No chemical additives needed. Only plain tap water is necessary. Darker the ambience brighter the image.
Do not use holographic technique.
Best visibility within the range. No special glasses needed.
REQUIREMENTSVoltage InputOutput size Data Sources
: 110V/60 Hz, or 220V/50Hz: 22" to 42": PC,TV, DVD, HDTV, Video game
: VGA, RGB & USB
PC Specifications : at least Pentium III 400MHZ 25MB free disk space Win2000/XP
Advantages No screen is required to project images Light weight and can be used/converted
into a furniture No chemicals are used. Nothing affects air quality projected. Two-dimensional, but gives 3D looks.
Contd Heliodisplay does not create fog. It causes no odour in the air.
can be seen up to 70 degrees off aspectfor a total viewing area of over 140 degrees.
No special glasses required to see thedisplay.
Contd Heliodisplay system can be used in any country, regardless of voltage
standards. Translucency is controlled by the Heliodisplay.
Disadvantages Heliodisplay is very expensive Viewing a Heliodisplay image in direct sunlight is almost impossible Screen is essentially air, so it can become distorted with too much air movement in the room.
Video conferencing Virtual surgery & pre-operative planning
Engineering/architecture plans Gaming/artwork
Military training programs
Conclusion Heliodisplay has great potential and would
be ideal for collaborative work Several available other but thin air-displays are Heliodisplay outclasses
them, because of the attention it drawsand its maintainability, and as a result it has more market value
Contd Heliodisplay is still in the initial stages and the flaws of cost and environment of positioning will soon be overcome. Its various applications such as in advertising, a board room etc suggests that its future scope is very bright.
References Displaying data in thin airby Paulson, L.D. Computer - Volume: 37 , Issue: 3 IEEE JOURNALS & MAGAZINES (2004) http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arn umber=1273997 Heliodisplay Floating Display; Tuesday, November 28, 2006 - Iddo Genuth IO2 Technology intros floating M3 Heliodisplay screen by Darren Murphy Feb 28,2007 www.wikipedia.com