Chapter 1 1. Introduction The Heliodisplay is an interactive technology that projects into the air still or moving images that can be manipulated with a fingertip. fingertip. Chad Dyner, Dyner, a graduate student at the Massachusetts Massachusetts Institute of Technology and chief executive officer for IO2 Technologies, has invented the Heliodisplay, which condenses the air above a video projector.[1] A projector is focused onto a layer layer of mist mist in midmid-air air,, result resulting ing in a two-d two-dime imens nsio ional nal displa display y that that appea appears rs to float float.. Heliodisplay can work as a free-space touch screen when connected to a PC by a USB cable. For a PC Heliodisplay acts as a pointing device, like a mouse. With the supplied software installed, installed, one can use a finger, finger, pen, or another object as cursor control and navigate or interact with simple simple content. content.
Heliodisplay Heliodisplay does does not require require any screen screen or substrate substrate other than than air to
project its image.Heliodisplay’s work on any power source, 90-240V,50 or 60 Hz. No fog or special chemical is required. Heliodisplay does not affect the environment as it works using the existing air that is already in the room to create the image.As dark areas of the image may appear invisible, the image may be more realistic than on a projection screen. Heliodisplay is a patented projection projection system designed to project video, products, products, information, information, people in mid-air (50" & 90" diagonal form factor.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' diagonal image that floats above the device.. You can connect the Heliodisplay to any video output, or insert a CF (Compact Flash) card with AVI or JPEG files into the Heliodisplay, and project any images or video in mid-air.The Heliodisplay system is backward compatible and accepts most 2D video sources (PC,TV, (PC,TV, DVD, HDTV, HDTV, Video game consoles). For connection to a comput computer er,, the Heliodi Heliodispl splay ay uses uses a standar standard d monito monitorr VGA connect connection ion;; for TV or DVD viewing, it connects using a standard RGB video cable.
Fig1.representation of heliodisplay
Chapter 2
HELIODISPLAY
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fig2.heliodisplay as touchscreen
2. Literature Survey 2.1 Evolution of Heliodisplay
Science-Fiction meets reality with this new video display technology that would have been the perfect definition of heliodisplay when people got to know about this technology back in 2003.In late 2003, a small company from the San Francisco Bay Area demonstrated a unique revolutionary display technology. The prototype device projected an image in thin air just above it, creating an illusion of a floating hologram. The development of this distinctive technology was the basis of “Heliodisplay” an interactive technology that projects into the air still or moving images that can be manipulated with a fingertip. Initially it was five-inch prototype in his apartment before patenting the free-space display technology, and founding IO2 Technology LLC to further develop the product in 2008 .But now an image as large 2 metres can be projected using heliodisplay. 2.2 Basic Unit Details
The basic units of heliodisplay are base unit and projection source as shown in figure 3. 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. The display connects to a standard video source (such as DVD player or PC) and projects any images that would be viewable on a computer screen or television. No specialized hardware or software is needed to view images. The Heliodisplay’s projected image hovers just above the base unit. The display is less bold than a normal computer screen. The housing of the Heliodisplay is floor bound and water particles rise rather than descend
FIG.3.basic units of heliodisplay
2.3 Working Working Of Heliodisplay HELIODISPLAY
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Heliodi Heliodispl splay ay images images are not holograph holographic ic althoug although h
they they are free-space, free-space, employing employing a rear
projection system in which images are captured onto a nearly invisible plane of transformed air. Display Displaying ing an image image using using conven conventio tional nal projecto projectors rs require requiress a non-tran non-transpa sparent rent medium medium,, typically screens, walls, or even water, but air, which is transparent, cannot be used. A more recent development is the Fog Screen, which creates an image in mid-air by employing a large, non-turbulent airflow to protect the dry fog generated within from turbulence. The result is a thin, stable sheet of fog, sandwiched between two layers of air, on which an image can be projected and even walked through. The Heliodisplay is based on the same principle.[1] Heliodisplay does not require any screen or substrate other than air to project its image, but it does eject a water-based vapour curtain for the image to be projected upon. Apparently, the Heliodisplay creates a particle cloud by passing the surrounding air through a heat pump, which in turn cools the air to a level below its dew point, where it condensates, and is then collected to create an artificial cloud. The particle cloud is composed of a vast number of individual micro droplets, between 1-10 microns in diameter, too small to be visible to the naked eye, held together by surface tension. The curtain is produced using similar ultrasonic technology as used in foggers and comprises a number of columns of fog. This curtain is sandwiched between curtains of clean air to create an acceptable acceptable screen. The projection medium medium includes several air streams, independent fan banks, and a 10 micron semi invisible atomized water particle Thus Heliodisplay transforms water into a unique screen of fine vapour , suspended in mid-air to create a nearly invisible screen into which any image can be projected. Fig 4 explains the working of heliodsplay. 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.
Fig 4.Working of heliodisplay. heli odisplay.
2.4Comparison with other available display technologies
HELIODISPLAY
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Other available technologies for projecting images include conventional projections, fog screen technology technology,, Perspecta Perspecta and Traub’ Traub’ss display technology. technology. Of these technologies technologies conventional conventional project projection ion system systemss require require a non-tr non-trans anspare parent nt medium medium,, typicall typically y screens screens,, walls walls or water water.. Secondly they make use of xenon gas for display of images. Thus this technology serves harmful to environment and is very much tedious to control unlike heliodisplay which is simple to use and eco-friendly. eco-friendly. Fog screen definitely is somehow somehow similar to heliodisplay heliodisplay it projects high-q high-qua ualit lity y image imagess onto onto a thin thin lamina laminarr air flow flow of water water vapou vapourr. Thou Though gh simil similar ar to heliodisplay but still this technology affects the electronic devices in its vicinity. Thus this technology is unfit to use. Perspscta has developed an incredibly high performance threedimensional display nearly 100 million voxels and interactivity at fingertips. It is mainly used for medical purposes. Though this technology is far better as compared to heliodisplay still it remains confined to medical applications only. Thus Thus heliodi heliodispla splay y outcast outcastes es other other availab available le technol technologi ogies es with its added added advanta advantages ges and features.
Chapter 3 3. Proposed Work HELIODISPLAY
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3.1 Interactive Heliodisplays
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, movements, enabling the Heliodisplay Heliodisplay to be utilized both as an Input & Output Output device in twodimensional dimensional space. Many model featuring touch screen facility were launched from year 2008 onwards. They majorly include model M3i, L90i, P series 3.1.1 Model M3i M3iserves as a computer input device for cursor control in a desktop environment. [3] It supports a 30" image with 16.7 million Colours and a 2000:1 contrast ratio. It allows a finger placed on the floating image to act as a computer pointing device. The user can interact with floating images or video, and manipulate them as you could with a mouse, including clicking and dragging. The M3i comes with Heliocast software and PC drivers to enable this. 3.1.2. Model L90i L90i is backward compatible. The interactive model (L90i) requires a basic PC with Windows XP or Windows 7, and at least 1.5 GHz CPU and 1 GB of RAM, two USB ports, and 4MB free disk space for the software drivers. It is also recommended that you have no direct light sources (such as lamps) lamps) within 0.5 meter of the air image you will be using for interactivity. interactivity. To use interactivity, just connect the Heliodisplay to your PC with the supplied USB cable, and install the touc touch-s h-scre creen en drive drivers rs.L .L90 90ii come comess with with its own own 4500 4500 lume lumen n proje projecto ctorr opti optimiz mized ed for for Heliodisplay. 3.1.3 P-Series P-series Heliodisplay Projection systems are designed with simpler operation functionality and advance advanced d control controlss for integrat integrating ing and use. use. P-series P-series incorpo incorporate rate an optical optical sync sync between between components that they are in direct communication link so only one button or trigger is required to operate as they all turn on and shut down in sync. Communication ports allow for the helio projection projection and helio base to be controlled remotely remotely in an installation installation via a remote controller controller or PC. On board diagnostic features support timing and other advanced independent controls via a controller or PC. Built in gesture control allows even simpler operation, such as hand waving to turn on the unit without actually touching the device. To project the images and videos, air should should be touched. touched.
The PRX2 projection projection unit unit includes includes proprietary proprietary baffling baffling to reduce the
viewing of the light source and beam-steering optics shorten the throw distance by 10”(25cm) 10”(25cm) while simultaneously allowing for easy control of the projection angle without even moving the HELIODISPLAY
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projection. In addition, and only available in the in the P92”, the base system can operate in any orientation from0-180 degrees. It also has USB playback from projection unit
3.2 Advantages:
1. The main main advantag advantagee of heliodisp heliodisplay lay is that it needs needs no screen screen to project project image. image. It change changess the air and creates a dynamic non-solid particle of cloud on to which the image is projected. 2. The device device is also light weight weight and designed designed to conceal conceal inside furnitu furniture. re. Therefo Therefore re we can create an effect of displaying images in mid-air. 3. Viewing requires requires no special special glasses glasses or any other backgrou background nd or foreground foreground screening screening.. 4. No other other additives additives or chemicals are needed needed only only plain tap water water is necessary necessary.. 5. Though Though Projected images and video video are two-dimens two-dimensional, ional, (i.e. Planar) but but appear appear 3-D since since there is no physical depth reference 6. The equipm equipment ent comes comes in an energy-e energy-effic fficient ient,, relatively relatively light weight weight and no special work, work, stand or support to install. 7. The The Helio Heliodis displa play y syst system em is back backwa ward rd comp compati atible ble and accep accepts ts most most 2D vide video o sourc sources es (PC,TV, DVD, HDTV, Video game consoles 8. It suppor supports ts all availab available le image image formats formats and is is 3D compatib compatible le 9. You can connect connect the Heliodis Heliodisplay play to any video video output output and project project any images images or video in mid-air. 10. The display is interactive, and no special glove or pointing device is required. 11. 11. It requires no additional additional hardware or software and works works with regular content. Heliodisplay does not create fog. So it does not cause any problems to the other electronic 12. Heliodisplay equipment’s in its vicinity 13. 13. No train trainin ing g requ require ired d to use use it, howe howeve verr just just like like with with most most vide video o equip equipme ment, nt, prop proper er planning and setup are important. Connect the video cable, flip a switch, and see video in mid-air. 14. Heliodi Heliodispl splay ay,, images images can be seen up to75 to75 degrees degrees off aspect for a total total viewin viewing g area of over150 degrees.
15.
It can be used anywhere around the globe since it works on 95-115 95-115 or 220-240V VAC
16 The technology is eco-friendly and low power consuming
3.3 Disadvantages: HELIODISPLAY
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1.
Need Needss cont contro roll lled ed ligh lighti ting ng for for bes bestt wor worki king ng cond condit itio ions ns..
2.
An image becomes less visible under bright light.
3.
Wind ind and and brig bright ht ligh lightt int inter erfe fere ress wit with h ima image ge visi visibi bili lity ty..
4.
It is expensive technology.
3.4 Applications: 1.
Advertising and Promotion, e.g.: trade shows; in-store displays; museum, movie and
casino displays; theme parks. 2.
Colla Collabo borat rative ive Decis Decisio ion n Mak Making ing,, e.g. e.g.:: board board meet meeting ingss and and pres presen entat tatio ions ns;; comm comman and d and and
control; architectural and engineering design; teleconferencing. 3.
Simu Simula latio tion n & Trainin raining, g, e.g. e.g.:: virt virtual ual targe targets ts;; pre pre-o -ope perat rative ive plan planni ning ng..
4.
Cons onsumer mer, e.g.: .g.: video ideo gam games; es; home thea theatr tre. e.
5.
Heads-up displays in new fields. e.g.: a patient's vital signs could hover above the chest
during open heart surgery. surgery. 6.
Buil Build d the the Heli Heliod odis ispl play ay into into furn furnit itur ure, e, e.g. e.g. proj projec ectt from from desk desk..
7.
Helio Heliodi disp splay lay enter enterpri prise se sol soluti ution onss prov provide ide var variou iouss optio options ns not not ava availa ilable ble in in the the stan standa dard rd
produc productt lineup lineup and solutio solution n tool-kit tool-kit ranging ranging from from tele-pre tele-presen sence, ce, military military targetin targeting, g, smart smart marketing portals, virtual "holo"assistants, to virtual air-touch monitors
HELIODISPLAY
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