hologram technology

holograms are the most popular sci-fi device ever thought up but no one has made a actual entity that can stand in front of you. hologram progectorsfit in pockets in movies why don't they have them now.
the closest thing i could find was a video; http://www.youtube.com/watch?v=pLa1rdfu6Bg

my idea was to have multicoler lazer diodes that target dust particals in the air and reflect off of them to create an image or perhaps millions of nonobots that position themselves in the air obove the projecter for a more precice image.

what do you think?

Picture of hologram technology
holo handheld.JPG
holo cell.JPG
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tinker2346 years ago
what about http://www.amazon.com/Mirage-3-D-Instant-Hologram-Maker/dp/B0002W3J7M
DehLeprechaun (author)  tinker2346 years ago
ha!! i have one of those they're really fun and very convincing! If anyone has ideas about how this could be used for a hologram display POST IT!!!
uh knone yet
mistaken6 years ago
i always thought you could make a hologram by having lasers targeting water particles from a modified mist or fog machine.
DehLeprechaun (author)  mistaken6 years ago
i was thinking that wud work but the problem is that the lasers would pass through/hit other particles not intended...
There are 3D "fog" displays. Part of the trick is to use multiple beams -- you end up with the whole field glowing slightly (from the effect you describe), but you get bright spots where multiple beams intersect.

These aren't technically "holograms" (they aren't produced from a recorded or generated 2D interference pattern), but they can still be pretty cool.
I think holograms are useless, there are better ways of doing the things that holograms would do.
So you've never tried to create a light beam with orbital angular momentum. A little bit of research might help you to sound like you know what you're talking about.
What im saying, is that holograms are not as efficient or advantageous as some other methods of conveying what holograms would try to convey.
But you also seem to be unaware that holograms are also used significantly not for "conveying," but for manipulating the physical properties of light, which cannot be done by other methods.
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