Three Dimensional Images in the Air
aist.go.jp
Three Dimensional Images in the Air
1–10 of 15 posts
Re: Three Dimensional Images in the Air
#2Dammit, I wanted to invent that! Sigh.
Re: Three Dimensional Images in the Air
#3"The emission time of the laser pulse light is on the order of a nano-second (10-9 sec). Our device uses 1 pulse for each dot to that the human eye can recognize plasma emission by utilizing the after-image effect, and enables a 100 dot/sec display."
Still not quite ready for prime time. 100 dots/sec isn't enough to make a display, but rather, a skeletal dot array.
Re: Three Dimensional Images in the Air
#4One Question: Where can I buy one?
Re: Three Dimensional Images in the Air
#5Sweet. Finally real 3d. Was getting tired of all of the "3d" displays that turned out to be lcd projectors on half mirrors.
One word of advice. Don't stick your hand in it to see if its a hologram! :)
Re: Three Dimensional Images in the Air
#6Can anyone explain to a layperson what produces the actual "glow" in thin air?
The best I can do on my own is that the laser beam(s?) is(are?) focused on a point and briefly converts some of the air at that point into plasma, which glows? (on its own? because of the laser?) How hot does that get?
Re: Three Dimensional Images in the Air
#7Something straight out of star wars
Though all this 3d jumble, with the new Aurora concept browser and all...I personally feel its nice but too much. I can't imagine reading YC News in anything other than 2d.
Re: Three Dimensional Images in the Air
#8Sweet. Finally real 3d. Was getting tired of all of the "3d" displays that turned out to be lcd projectors on half mirrors. One word of advice. Don't stick your hand in it to see if its a hologram! :)
"Translation of the AIST press release of February 7, 2006".
Re: Three Dimensional Images in the Air
#9Help me, Hacker-News; you're my only hope
Q. Does "scanning" have the same meaning as in "raster scanning", where you cover the area (volume) in a set pattern? If so, I would have thought a vector approach would work better here...
Q. What is a "motor orbit"?
"The linear motor system enables the position of the laser focal point to be varied by high-speed scanning of a lens set on the motor orbit. Incorporation of this system makes the image scanning in the direction of the z-axis possible. For scanning in the x and y axis directions, conventional galvanometric mirrors are used."
It took me a while to realize that it's not the intersection of two lasers, but the focal length of one laser. I didn't realize you could do that with coherent light, but of course you can.
Re: Three Dimensional Images in the Air
#10Sweet. Finally real 3d. Was getting tired of all of the "3d" displays that turned out to be lcd projectors on half mirrors. One word of advice. Don't stick your hand in it to see if its a hologram! :)
"Translation of the AIST press release of February 7, 2006".
I'm not saying that its "new" new. I'm just glad to hear about a 3d technology that's not just a bunch of hype that turns out to be the "Pepper's Ghost" illusion again.