How To Build a LLP Multitouch Table

Here we look at building a Laser Light Plane (LLP) multitouch setup using an infrared light source to light up fingers/objects placed on the surface and a camera to track the blobs.

Visit http://peauproductions.com/ for more information.
All the parts seen in these videos can be purchased at the PP store: http://peauproductions.com/store

Category:

Science & Technology

Tags:

• multitouch
• multi
• touch
• table
• camera
• infrared
• peau
• productions
• peauproductions
• sony
• playstation
• eye
• pseye
• ftir
• llp
• dsi
• ledlp
• led-lp
• nuigroup

[devilsonlychild]

I'm fairly new to this. Could u please tell me if the IR lasers could damage the eye when used in this application? or is it better to use a LED LP for long period usages.

[PeauProductions]

@devilsonlychild It is always better to use LEDs in an LED-LP setup due to the danger of working with lasers. Once the line lens is placed on the laser though, the beam is spread very thin and can be typically used safely in installations.

[iSplasHx]

where can i buy the lasers ? /sweden

[PeauProductions]

@iSplasHx All parts including lasers can be bought on the Peau Productions store

[PeauProductions]

@iSplasHx All products shown are available on the Peau Productions store

[jcizthe1]

Is it possible to use a mirror with an LLP multitouch setup?

[PeauProductions]

@jcizthe1 A mirror can be used in all setups. You can use the mirror to bend the projector beam path or the camera viewing path.

[jcizthe1]

Thanks alot PeauProductions, I Just bought 4 IR Lasers from you!

[PeauProductions]

@jcizthe1 The exact setup that I used in these videos was a m12 custom camera with a varifocal 2.6-6mm m12 lens

[PeauProductions]

@InsaneTux Yes buying a band pass filter will greatly help you get the blobs bright enough to track. Since the lasers are close to visible light, you want to filter out as much ambient light as possible