Printable View
http://www.youtube.com/watch?v=l0PqorJkBSE
94" of viewing pleasure. I would like to say that it looks a lot nicer in real life. I did this in about 45 minutes with an overhead projector I was given and a broken LCD I had lying around.
Comments welcome.
Link works now.
That is pretty neat. I am bit confused about how the setup works. Maybe a diagram. Good work.
+rep.
He put an LCD screen on an overhead projector, the kind used in schools to do math problems and the like.
Creative. rep+
ye iv bin meanin to do somin like that but never got round to it were did u get the overhead projecter from oh and also +rep
Sweet stuff! thats some awesome work. +Rep.
Yeah, nice idea but we need a diagram and photos to see how it works.
Ok.
http://www.highedu.org/images/proj.jpg
You take one of these, you strap an lcd to it that's the right size, you aim it at a wall that doesn't have anything on it and the image becomes projected through the glass at the top.
That's basically it, but maybe you can convince stilgar to make a video explaining and showing his design?
I have been following the DIY projector scene for a few years now. There is a ton of information on http:\\www.lumenlab.com . They have a pretty good project logs forum here. There are a few pros and cons to building your own projector. When I first started looking into this projectors cost 1500 bucks and up. Doing this you could save some serious money doing it yourself. Now there are several projectors you can buy for 500 bucks or less depending on its specs. The beauty of the diy projector is the bulb. Projector bulbs are rated for a few thousand hours of operation and the average cost of each bulb is 300 bucks. In the diy projectors they are using bulbs that cost $30 and they are rated at 6000 hours plus. The sacrifice for doing this is mainly size and convienence. DIY projectors using lcds are fairly large compared to their comerical counterparts. Lumenlabs has just released a comercial version of their diy specs for $500, but I dont think the specs match what you can build yourself for that price.
Anyway great job d_stilgar looks like alot of fun!
Great job! Is it bright enough for viewing in a lighted room?
Another video.
http://www.youtube.com/watch?v=IfgxuXtI6U4
The process is really simple. I happened to have a 17" LCD lying around, which was too big to fit on an overhead projector's "stage" properly. This was ok though because the printed circuit boards that control the LCD are connected by a ribbon cable and really can't be moved out of the way.
The paper around the projector protects against light pollution in the room. and there are two pieces of wood that raise the LCD off the stage. If put directly on, the heat from the light could heat up the LCD too much and darken the entire image. (That's bad.) The laptop I'm running it from currently is very old and only outputs at 1024x768. The LCD used in the project has 1280x1024 resolution. I'm sure that If I hooked it up to a better computer that the picture quality would be better.
I got the idea from here:
http://www.denguru.com/2004/11/13/su...or_/index.html
And they did an update that shows LCDs that are good for the project.
http://www.denguru.com/2004/12/01/bu..._projector_ii/
I used my 17" LCD because it was broken and I already had it, making my project free!
And to Doomfest, no it doesn't work in a lighted room (or at least my very well lighted basement).
Oh that is it. So simple pretty cool. Must try it.
The only thing I can see that is missing are fans.
Your not concerned about the display overheating?
Since I got most the stuff for free, and because it's not a permanent system, I'm not concerned about heat. I want to build a better one eventually, but I haven't gotten around to it yet. So yeah, I haven't had heat issues yet, and I'm not too concerned, even if it overheats and breaks the LCD.
