Helio Display

HELIODISPLAY

Mid air projector.

Presented by -

K. KIRAN SAI SUBRAMANYAM 094H1A0471,

K. ASHOK KUMAR 094H1A0455.

ECE

[email protected]

SRI SAI COLLEGE OF ENGINEERING AND TECHNOLAGY,

LOLUR, ANANTAPUR, ANANTAPUR [dist], AP, 515001.

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Abstract:

In past we have a projector, which projects the content of information at a physical screen. Then all the process is similar, which is a 2-D display. This technique is a cinematic rear projection method.

This is similar to the principle to the cinematic technique of rear projection and can appear 3-D 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.

This technique is called “HELIO DISPLAY “. It was developed by I02 technology.

We may define HELIODISPLAY as –

“It is a interactive display device that projects the images or streaming videos on to a layer of mist in mid air, resulting in 2 or 3 dimensional display.”

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Introduction:

An interactive free space display developed be I02 technologies. It is a planar display.

2D and 3D work as a free space touch screen. Eco- friendly, low power consuming and various image and video formats.

“It is a interactive display device that projects the images or streaming videos on to a layer of mist in mid air, resulting in 2 or 3 dimensional display.”

History:

Heliodisplay was as similar with the “HOLOGRAPHY” .

HOLOGRAPHY was first invented in1947, English physicist “DENNIS GOBOR (1900-1979)” tried to improve the image, producing capability of electron

microscopes which use streams of electron rather than light to magnify the objects.

The process and implementation of Holography is different from HELIODISPLAY. But the purpose is same.

The patent HELIODISPLAY in 2003 the company named I02 technologies revealed about their invention. They mentioned the specification of modal as fallows-

Heliodisplay can run several hours on one liter of tap water.

It not used any additive or chemical, only plain tap water. (We can use distilled water, ionized water or de-mineralized water if desired.)

It can project video or images into mid air.

Supportable formats: 1. JPEG2. FLASH3. QUICK TIME4. TEXT

Added capabilities installed software.

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1. Cursor control 2. Navigate and interact with

simple.

These are the specifications first revealed by IO2 technologies.

Up to now we have display technology using screen or any other peripherals like desktop monitors etc.

While unlikely to replace the desktop computer monitor, these thin-air displays could eventually be put to use in product showrooms, museums, military training facilities, corporate conference rooms, trade fairs, theme parks, and advertisements.

The first permanent prototype was installed in the Vapriikki museum in tampered and has since been loaned for use in France. Fog Screen is renting some devices and expects to begin sales soon.

Principle:

Heliodisplay transforms water in to a unique screen of fine vapor, suspended in mid air to create nearly invisible screen in to which any image can be projected. The vapor screen is a particle cloud created by passing the surrounding air through a heat pump which in turns cools the air to a level below its dew point.

This particles cloud consists of individual micro- droplets, held together by surface tension.

It is a free-space display system that projects images or videos on to thin air. It doesn’t need walls, screens or any other solid object.

What’s more, you can physically interact with images by touching them. Just point your finger on whatever it is that’s being projected and you can ‘click’, drag or rotate it across a two dimensional plane.

The image manipulation comes courtesy of a row of infrared light emitters positioned just in front of where the water vapor emergesThe system senses when your finger breaks through the infrared beams and interprets your movements in a way not dissimilar to a touch-sensitive screen – except there's no screen.

Heliodisplay can work as a free-space touch screen when connected to a PC by a USB cable. PC sees the Heliodisplay as a pointing device, like a mouse. With the supplied software installed, one can use a finger, pen, or another object as cursor control and navigate or interact with simple content.

The mist is formed by a series of metal plates, and the original Heliodisplay could run for several hours on one liter of tap water.

2008 model Heliodisplays use 80 ml to 120 ml of water per hour, depending on screen size and user settings, and can be built with any size water tank.

The Heliodisplay was invented by Chad Dyner, who built it as a five-inch prototype in his apartment before patenting the free-space display technology, and founding IO2 Technology LLC to further develop the product. Projecting Video Images into Free Space with the Heliodisplay!

Computer Video with No Screen

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Science-Fiction meets reality with this new video display technology.

The Heliodisplay includes patented and patent pending technology to transform normal ambient air and display video images into free-space. Some Heliodisplay models are interactive allowing

a finger or hand to move images around in the air as if one were grabbing a tangible object.

The Heliodisplay requires a power outlet, and a computer, TV, DVD or alternate video source.

The current version of the Heliodisplay projects a 22' to 42' (depending on model) diagonal image that floats above the device.

Key features:

1. No other additives or chemicals are needed only plain tap water is necessary.

2. Similar to other display darker the ambience brighter the image.

3. It does not use holographic technique, though both has similarities.

4. Image can be seen up to 75 degrees off aspect similar to LCD screen.

5. Viewing requires no special glasses or any other background or foreground screening.

Some demo pictures of HELIODISPLAY

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Basic Working

Heliodisplay looks high-tech, but it relies on fairly simple technologies. The Heliodisplay transforms ambient air using a proprietary multi-stage system of modifying the optical characteristics within a planar region in which polychromatic light is scattered on this surface such that the image appears visible to the viewer. An advanced optical tracking system monitors finger movement within in the image region and is translated into cursor control movements, enabling the Heliodisplay to be utilized both as an Input & Output device in two-dimensional space.The Heliodisplay transforms surrounding air into a unique screen of fine vapour, suspended in mid-air to create a nearly invisible screen into which any image can be projected. The machine thus modifies the air above a video projector, creating a screen, which can display any kind of video. Images are then projected onto the water vapour via an internal projector and an external mirror, but

you can also use a standard external projector of your own and leave out the mirror, which makes the final effect more compelling. The display can create a true 3D hologram effect when the right content is used. The image is two-dimensional, can be seen from several angles, and be manipulated by hand. The M2i model includes a proprietary system, called Heliocast, for interactively controlling the displayed image. A sensor inside the M2 identifies the movement of the user's hand in the area of the projected image and the Heliocast software calculates the movement of the object projected. The image manipulation comes courtesy of a row of infrared light emitters positioned just in front of where the water vapour emerges. The system senses when your finger breaks through the infrared beams and interprets your movements in a way not dissimilar to a touch-sensitive screen -- except there's no screen.

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Fig: M2i model

Principle of working

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Fig: shows the principle of working.

Step 1: cooling it to below its dew point

In the first step we introduce air to the heat pump. Heat pump contains some amount of vapors for our artificial screen requirement. It cools the vapors to below its dew point.

Step 2: stores the condensed particle cloud

In this step 2 the condensed particles are stored for creating artificial screens. This clouds created by passing through a heat

pump which turns cool the-air to level below its dew point. This particle cloud consists of individual micro droplets, held together by surface tension.

Step3: projection of screen

Screen created by an invincible layer of fine water vapor. Now the screen is ready for projecting in mid air.

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Basic prototype of “HELIODISPLAY

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Models of Heliodisplay:

M1:The original M1 units produced by IO2 were advanced prototypes and proof-of-concept,but a few were sold to early adopters through channels such as eBay.

M2:The M2-series is the second-generation mid-air projector with a larger 30-inch diagonal (76cm) display area with 16.7 million colours and a 2000:1 contrast ratio.

The new M2 has been redesigned enabling higher image quality, resolution, brighter and overall performance. The interactive M2i version includes virtual touchscreen capability. The M2 is about the size of a tower desktop computer case turned on its side. The M2 projects its 76.2 cm (30'') diagonal floating image at a height of 71 cm (28") above the projector. The native resolution of the M2 is 800 x 600 though it can support up to 1280 x 1024, and the image can

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be viewed from as much as a 150 degrees angle. The M2i model includes a proprietary system, called Heliocast, for interactively controlling the displayed image and drivers for a standard PC. A sensor inside the M2 identifies the movement of the user's hand in the area of the projected image and the heliocast software calculates the movement of the object projected.

M3 and M30: The new third-generation M3 version launched on February 28th 2007.It has the same basic specifications as the M2 but is said to be much quieter, with improved brightness and clarity and more stable operation with an improved tri-flow system.Apart from displaying at a standard ratio of 4:3 in addition it also displays 16:9 widescreen ratio.

The native resolution of the M3 is 1024 x 768 and contrast ratio is 2000:1. There is also an interactive version called the M3i. M3i, which in addition to all the features of the M3, serves as a computer input device for cursor control in a desktop environment, for a price of $19,400 USD.The M30 is the updated version of the M3, which fits into the current model numbering system, 30 designating the diagonal screen size.

M50 and M100:In late 2007, IO2 Technology introduced two larger Heliodisplays, the M50 and M100. The M50 has a 50" diagonal image, equivalent to displaying a life-size head-and shoulders person. The M100 has a 100" diagonal image, equivalent to displaying a large full-body person (about 2 meters tall)

APPLICATIONS:

Advertising and Promotion, e.g.: trade shows; in-store displays; museum, movie and casino displays; theme parks.

Collaborative Decision Making, e.g.: board meetings and presentations;

air-traffic control; military command and control; architectural and engineering design; teleconferencing.

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Simulation & Training e.g.: virtual targets; pre-operative planning; virtual surgery, heads-up display.

Entertainment e.g.: video games; home theatre

Build one into a door jamb and have a walk through image or virtual privacy screen.

Demos:

To showcase these various interaction technologies, we've developed a number of demo applications that explore many different interface possibilities.

Virtual Forest:

Virtual Forest was modified to be used with the Heliodisplay to show how a first person style interfaces would feel, and to show off some advanced real-time rendering techniques on the novel display. A

user can navigate the forest by using a tracked wireless joystick to control their velocity and direction. Different buttons also allow the user to look around change the direction of the sunlight.

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Elastic Face Deformation:This allows the user to interactively stretch and sculpt the shape of a 3D head model. The interface uses a tracked wireless joystick to control a 3D cursor around the head, while buttons on the joystick trigger stretching or sculpting actions. This can be used to find how the face will deform after plastic surgery. This finds great

application in criminology.

CONCLUSION:

Heliodisplay provides a method and apparatus for generating true high-fidelity full color, high-resolution free-space video or still images with interactive capabilities. The system comprises a self-generating means for creating a dynamic, invisible or near invisible, non-solid particle cloud, by collecting and subsequentially ejecting condensate present in the surrounding air, in a controlled atomized fashion, into a laminar, semi-laminar or turbulent, particle cloud.The interactivity significantly expands the possibilities of the display.

Since 2004, IO2 Technology, the California-based company Dyner founded to commercialize his invention, began selling his device under the brand name Heliodisplay M2 for just under $20,000, out of reach of most consumers. IO2 Technology is actually marketing the M2 to corporate customers who would use the device as a novel way to display the company's logo or as a strikingly impressive advertising and promotional tool for exhibitions.

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FUTURE SCOPE:Heliodisplay is a break-through technology that introduces a number of interesting possibilities for advanced display design. It would replace the traditional glass TV screen or computer screen. A future display would be an open-air display with high resolution, clear 3D capability, along with an accurate interactive capability. Researches are going on to develop cell phone-sized Heliodisplay. IO2 is currently developing advanced systems employing alternate technologies that

will be available in the near future. IO2 technologies is looking to license/sell Heliodisplay to individual firms/investors with tech and Marketing resources to commercialize product. These platforms will serve multiple future markets. Clarity, image size, wider view angle, interface design, scalability and enhanced features are under development in the product pipeline. Researches to develop a more economical product are also in progress.

References:1. Olwal, A., DiVerdi, S., Candussi, N., Rakkolainen, I., and Höllerer, T.

An Immaterial, Dual sided Display System with 3D Interaction. Proceedings of VR 2006 (IEEE Virtual Reality Conference 2006), Alexandria, VA, Mar 25-29, 2006, pp. 279280.

2. ChadDyner, Method and system for free-space imaging display and interface.United States Patent 6857746.

3. Displaying Data in Thin Air.IEEE CSI March 2004 magazine.

4. www.authorstream.com/presentation/aasusudarsan-1159561-final- heliodisplay-2/

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THANK YOU

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