projector

146 Articles

Turn Your Projector Into A Laser Guided Controller

September 22, 2008 by 16 Comments

[youtube=http://www.youtube.com/watch?v=bJgzwW2C6DQ&fmt=18]

[Alpay Kasal] of LitStudios as come up with an interesting way to use laser pointers as a wireless controller for games and applications. The process is currently being patented, which may explain why [Alpay]’s blog is a little slim in the details. We doubt they’re doing anything more than just using a camera to track the laser pointer; exactly like laser tagging.

If you’re just itching to get your hands on some wireless game play and can’t wait for this to go commercial you could always just get a Nintendo Wii.

[via Engadget]

Touchkit – IR Multitouch Screen

July 8, 2008 by 11 Comments


If you’ve got an extra grand laying around, you can pre-order one of [nortd]’s touchkits. It features a unique custom made acrylic screen with a crap ton of IR LEDs embedded in it. An included IR camera provides the input and a projector (you get to supply your own) is used to light the surface. We mentioned this in our multitouch roundup and you can find a video of it embedded after the break.

Continue reading “Touchkit – IR Multitouch Screen” →

LCD Projector Repair

May 25, 2008 by 4 Comments


[Kieth] picked up an Infocus projector only to find that it needed some repair. The polarizer on the blue light path was toast. When he parted out an Optoma projector he scored a polarizer that was just about right for the repair. It’s a good read even if you don’t have a projector in pieces at the moment. He ended up bending the mounting bracket a bit to hold the filter and got his projector fully up and running again.

Cheap Projector Repair

May 22, 2008 by 31 Comments


[Ryan] sent in this writeup on some DIY projector repair. The write-up is a little hard to follow, but maybe it’ll inspire some future projector landfill saves. [Dissident] replaced the light bulb and ballast in an older DLP projector with some salvaged MR-16 hardware from an even older over head projector. The main trick required was to bridge the trigger leads that tell the projector that the bulb is on and working.