Projecting Light Off Of Thin Air

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The discussion focuses on the workings of the Heliodisplay technology, which modifies air to create images without emitting harmful substances or altering room conditions. The device uses lasers to project images, but these are not holographic. Speculation suggests that the technology may involve creating a visible vapor, similar to mist fountains, which could enhance image clarity. There is interest in exploring the use of adaptive optics to stabilize the image and improve quality. Additionally, there is a proposal to experiment with using a dehumidifier to collect vapor from the air to create a fog screen for image projection, indicating a desire to scale the concept for larger applications.
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What guesses do you have as to how http://www.io2technology.com/dojo/178/v.jsp works?
I wonder how hard it would be to use adaptive optics to stop the wavy motion of the image? Why does the image look like it is made of vertical strips? Looks like a photo went through a paper shredder. Upgrading it to show HD video and things with 3-D volume would tempt me to buy one if the price was right.
 
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Well, the technical 'scrip is necessarily vague, but they do hint at some of it:

"Air comes into the device, is modified then ejected and illuminated to produce the image. Nothing is added to the air so there isn`t any harmful gas or liquid emitted from the device, and nothing needs to be refilled. Operating the device will not change a room`s environment, air quality or other conditions. If a Heliodisplay were left running for a week in a hermetically sealed room, the only change to the room`s environment would be from the electricity used to run the device."

and then:

"Although the Heliodisplay uses lasers, the images are not holographic."

So, I'm guessing perhaps the air is modified to form a visible vapour, much like is being used in the glut of mist fountains that have come out recently. They look much like dry ice fountains, but they're not dry ice (it's a liquid chemical in a squeeze bottle).
 
DaveC426913 said:
So, I'm guessing perhaps the air is modified to form a visible vapour, much like is being used in the glut of mist fountains that have come out recently. They look much like dry ice fountains, but they're not dry ice (it's a liquid chemical in a squeeze bottle).

Are you sure you aren't thinking of ultrasonic water foggers ? I have a five disk one, pretty neat. I'm not totally sure how they work but I think they use cavitation.
 
Yup, that's what I was talking about.
 
I want to carry out this experiment, and can you gentemen help to join in idea if I can make it to a big area scale, in this event, do you think we can utilize the concept of a dehumifier, with the vapour collected from the air (or better if it is open air) to create the foggy effect to form a fog screen to project images onto it. Need your enlightment urgent.
 
I want to carry out this experiment, and can you gentemen help to join in idea if I can make it to a big area scale, in this event, do you think we can utilize the concept of a dehumifier, with the vapour collected from the air (or better if it is open air) to create the foggy effect to form a fog screen to project images onto it. Need your enlightment urgent.
 
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