Support NeoGAF

[Matlock]

http://www20.tomshardware.com/howto/20041113/index.html

Impressive...I'm so tempted, just because the picture would be so awesome.

 

[quin]

that way will only work for a pc i think. I'm guessing for it to work with dvd players, game systems, etc... you would have to have another board for conversion of the video signal? I'm only guessing thought because i thought this would be cool to do too

 

[Matlock]

Yeah, you'd have to use a VGA box/convertor. Then again, most current PC's have DVD drives in them.

 

[Phoenix]

Yeah, you'd have to use a VGA box/convertor. Then again, most current PC's have DVD drives in them.

The real problem is the noise that you use to keep the LCD:glass connection cool. The system itself is simplicty (and is actually how your LCD works anyways). You're just projecting the image of the LCD through a projector similar to the way light from the backlight is projecting through the LCD in your laptop or regular LCD flatpanel TV or monitor.

This particular Toms Hardware do-it-yourself project isn't rocket science. My cousin and I experimented with one a few years back for a club in New Orleans East. The system is just loud as hell. You can resolve *some* of this by using a heat induction system to carry some of the heat away from the glass. Not a whole lot you can do about the noise except to enclose the system so you can dampen the noise coming from it.

 

[miyuru]

Honesty, that guide is really convincing. I wanna do it, but I don't really have anywhere to project. And if you did, I wonder where the projector would stand and you would watch the movie, since it would get in the way right?

 

[mrklaw]

I'm not going to knock it, especially working in an office with an old Laptop sitting in my drawer, and obsolete overhead projectors all over the place..

There is a single bulb illuminating a large panel. You'll quite likely get a couple of issues:

- Hotspotting. Big bulb right in the middle of a large panel means the center of your image will be brighter than the edges.

- focus. It will be very difficult to get accurate focus across all of the image.


But it does look fun to make. I'd like to let the guys from AVSforum loose on this little project and see what the results are.

 

[soundwave05]

I think I'm gonna try this just for the hell of it.

What's the image quality comparable to?

Those shots of Terminator 2 looked really nice.

I suppose there would be more heating issues, but couldn't you use more than one bulb?

 

[Enigma]

Just read that article today and was initially really excited. Hook up an X-Blaster (Or KDS equivalent) and it'd seem like an awesome gaming solution (Especially if you built a nice encasement to hide the projector and only left an opening for the lamp). But then I started thinking about it from a gaming point of view. To get an LCD monitor with a nice response time that wouldn't drive me crazy with the butchering of games, 14 or 15 inch LCDs are pretty much out of the question. Did a search at Newegg at 12ms LCDs, and the smallest was 17 inches (Which won't fit). Sadly, this seems like a deal killer for me.

 

[maharg]

- Hotspotting. Big bulb right in the middle of a large panel means the center of your image will be brighter than the edges.

I was thinking this shouldn't really be an issue because most overhead projectors have a diffusor panel, but they actually tell you to remove it, probably because it prevents some of the light from getting through. Their sample image doesn't seem to have this issue to a noticeable degree.

- focus. It will be very difficult to get accurate focus across all of the image.

I don't see why. Back in the day they used to sell readymade things like this, and they didn't have any focus issues. It's not like overheads in general have that sort of problem. Not the good ones, anyways.