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Projection Screens
3D Holographic Projection - The Future of Advertising?
With many of the latest big budget cinema releases being available in 3D, and everyone talking about the 3D future of television, many eyes are starting to focus on 3D hologram projections...without the glasses!
Where does this technology originate from?
3D holographic projection technology is loosely based on an illusionary technique called “Peppers Ghost”, and was first used in Victorian theatres across London in the 1860s. Pepper's Ghost was typically used to create ghost-like figures on stage. Hidden from the audience's view, an actor dressed in a ghostly costume would stand facing an angled plate of glass. The audience would be able to see the glass, but not the actor directly. Specifically angled lighting would reflect the actor's image into the plate of glass, a transparent ghost like reflection would appear in front of the audience. Cutting or fading the lighting could also add to the ghostly effect.
How is this technology used today?
With the use of the latest HD projectors, CGI animation, specialist HD film techniques and special effects created in post production, Pepper's Ghost technology has been upgraded to the 21st century. Instead of a real object or person's reflection appearing on a plate of glass, high definition video and CGI animation is beamed directly onto a specially designed, chemically treated transparent film via a high power HD projector. Although much more expensive, this modern approach results in a much clearer, believable hologram projection.
What kind of images can be projected as holograms?
Due to the modern approach of projecting CGI animations and pre-recorded footage, almost anything is possible. The “blank canvas” approach is often adopted, creating a storyboard only limited by imagination. The storyboard can then be handed over to a CGI animation team who can make it come to life using the latest 3D software such as Maya or 3ds-Max.
Real people can be filmed giving a speech, dance or presentation for example, and then be projected as 3D holograms. Holographic special effects can be added in post production to make a life-like person beam into the room, Star Trek style, or have their product appear and spin above their head at the click of their fingers.
Who have used 3D Holographic projections and why?
In August 2009, Endemol, the producers of the famous reality TV show Big Brother, working together with activ8-3D holographic projections, beamed housemates' friends and families into the house to deliver messages of support and encouragement. The messages were pre-recoded using HD cameras and specifically angled lighting. A stage was rigged inside the Big Brother house task room, compiling of a HD projector, media player, lighting, and audio equipment. Each housemate entered the room in turn and took a seat in front of the stage. On cue, the housemate’s family member or friend was beamed into the stage before delving their message. Although the hologram displays were difficult to judge on 2D television screens, the event was hailed as a great success, evoking brilliant reactions from the housemates which made for great TV.
“Any other screen message on video isn’t a touch on that. They are in front of you – none of this flat screen or plasma screen – they are really there.” exclaimed David.
t’s lovely. It’s like you wanna touch it. I can’t believe it. I’m shaking,” replied Lisa.
In January 2009 Coco-Cola gave a sales conference presentation in Prague for over 800 people. Senior directors of the company were beamed into the stage as 3D holograms before giving a presentation about how the Coco-Cola brand has evolved over the years. The content of the presentation was also in the form of 3D holographic projections. The centre piece was a giant 3D hologram Coco-Cola branded spinning clock, representing the progression of time. A showcase of previous Coco-Cola bottles, logos, and labels amongst other objects were also projected as 3D holograms to create Prague's first 3D holographic projection display.
What range of sizes can the holographic projections be displayed in?
This technology has been known to scale down to as small as a ten inch hologram display. The smaller range of holographic display units, ranging from ten inches to television sized monitors are predominantly used for retail, exhibitions and point of sale. Famous brand companies such as Diesel, have used this type of holographic display in their shop windows.
One of the largest holographic projections to date was in South Africa in 2007. A holographic projection screen, 12 metres wide, by 4 meters high stretched across a stage in front of 700 BMW officials, celebrating the launch of the latest X6 model. By increasing the size of the stage and number of projectors, there is no limit to the maximum size of the holographic projection displays.
Which other technologies are being used together with 3D hologram projections?
activ8-3D, the London based holographic projection specialists, have recently developed motion capture systems to couple 3D holographic projections. Motion capture systems are far from a new technology. An actor wearing a motion capture suit can have his/her movements picked up via various sensors. These movements can then be played back in real time onto a screen in the form of an animated character. Working with hologram display technology, these characters can become life size 3D holographic animated characters, both technologies working together perfectly to complement each other.
Hologram projection displays have also recently seen advances in audience interactivity. Using a wireless remote control, the holographic projections can be moved around the stage, rotated on their x and y axis, and can even be programmed to start or stop an animation on the click of a button.
What is the future of 3D holographic projection?
3D holographic projection technology clearly has a big future ahead. As this audio visual display continues to get high profile credibility, we are likely to see more companies advertising their products or marketing their business in this way. Whether it be large scale, big budget product launches or smaller retail POS systems, they are likely to become a common feature in the advertising world.
Where can I see an example of this technology?
A 3D holographic projection demonstration can be seen at The Movieum of London Museum, located in Westminster, England. The company behind it, activ8-3D holographic projection, are showcasing their large scale show and event holographic display, their medium and small size exhibition and retail hologram displays, as well as motion capture and interactive systems. For a free demonstration visit their website www.activ8-3d.co.uk or send an email to info@activ8-3d.com
About the Author
Ryan James (ryan@activ8-3D.com) is the marketing manager for activ8-3D Holographic Projection. activ8-3D provide a range of holographic projection display systems and services.
Visit www.activ8-3d.co.uk for more information including the original article (http://www.activ8-3d.co.uk/about-us/articles/3D-holographic-projection-technology.php)
What is the difference when buying a projection screen.?
I have a home theater and I want a 120" fixed screen. I have seen a couple of different brands out there. Including elite screens, da lite screens, and the much cheaper accuscreens. what is the difference in these? How much of a difference would it make if I went with accuscreens instead of Elite?
The thing to look at is the gain and the viewing angle. You may want to draw the floor layout of your theatre so you can determine the maximum viewing angle. This would be the end of the front row viewing the opposite end of the screen. Based on that you can determine the viewing angle you need in the material. Your ambient lighting conditions and projector brightness will determine how much gain you need.
The calculator at Projector Central can help you determine the gain you need...
http://www.projectorcentral.com/projection-calculator-pro.cfm
As for brands, I'm not sure how much difference that really makes. If you get the parameters you need in terms of gain and viewing angle you should be ok. If you really want to save money you can buy the Dalite material here...
http://store.cousinsvideo.com/cut-to-size.html
Making the screen isn't that difficult, stretching the material is the hard part especially if you go with a curved screen like I made for my HT. Still, I built a screen for about $500 that would have cost $4200 to buy... in a kit that I would have had to assemble anyway...
http://www.mfk-projects.com/theatre_screen.htm
mk
Mustang Electric Projector Screen