My DIY projector...

[Teflon]

I will post this here since it kind of has to deal with movies.
As some of you know I was building my own LCD projector. Well, tonight I finished it and here are the preliminary results.

http://webpages.charter.net/tenflo/image1.jpg (http://images.purevanity.net/community/hosted_images/200606A/image1.jpg)
http://webpages.charter.net/tenflo/image2.jpg (http://images.purevanity.net/community/hosted_images/200606A/image2.jpg)

The projection is around 75", I have limited wall space, but the average size of these is 110". I'm projectioning up against a white wall so that is why the colors look drained. Also don't be fooled by the lousy camera work. The camera I was using didn't have a low enough shutter setting so it didn't pick up the light too well. These shots were taken from regular cable TV. The first pic is whatever was on ESPN at the time and the second is a geico commercial. I will try to get some better pics with a tripod later on in the day when I hook up thee xbox and DVD.

Here is some pics of the outside and inside of the box:
http://webpages.charter.net/tenflo/pj2.jpg (http://images.purevanity.net/community/hosted_images/200606A/pj2.jpg)
Inside:
http://webpages.charter.net/tenflo/inside.jpg (http://images.purevanity.net/community/hosted_images/200606A/inside.jpg)

If you have any questions don't hesitate to ask.

[Dave: Mirrored images on PVNet Servers.]

[Dave]

This is pretty neet.

I assume that you are using the guts from an LCD monitor?

I dont see a lense, is this lense free?

Thanks for posting your work.

--Dave

[Teflon]

The monitor I am using is a Samsung 510n. In order to get it to work you need to strip it down, and remove the back light.

The lenses are hard to see. In order to get the projection you are going to need two fresnel lenses. You can see them in the middle of the box. Starting from the light and moving left you have a heat shield, a 220mm focal lenght fresnel, the lcd monitor, 317 mm focal length fresne, and finally in the front of the box where the light comes out is a projection lens triplet to focus the light on the wall.

[Dave]

If you are planning to snag more pics, I wouldnt mind to see some of the lense setup.

I have created a 'Homebrew' forum in the PVNet community, and moved this thread there. I'd like to see more stuff like this on the forum, and perhaps a forum for it might encourage more posts.

Thanks for your posts.

--Dave

[Teflon]

Images of the lenses.
http://webpages.charter.net/tenflo/inside1.jpg
you sandwich the LCD between the two lenses:
http://webpages.charter.net/tenflo/inside2.jpg
http://webpages.charter.net/tenflo/inside3.jpg

New images taken with a tripod.
http://webpages.charter.net/tenflo/image4.jpg
http://webpages.charter.net/tenflo/image5.jpg
http://webpages.charter.net/tenflo/image6.jpg
http://webpages.charter.net/tenflo/image7.jpg
http://webpages.charter.net/tenflo/image8.jpg

I also tried to bring out some of the color that the camera wasn't picking up in PS.
There are dark corners that still need to be ironed out but overall I'm happy with the image this beast puts out.

[feek]

neato .. about how much did it put you back?

-feek

[Teflon]

Samsung 512n = $230
Lenses = $65
Lighting kit = $159 (400w Metal Halide Lamp, Electronic Ballast, Mogul Base)
Misc. crap from Hope Depot = $80 (Wood, Wiring, Lexan, etc.)
2 fans = $26
The guide to build it all = $19
Slaughtering n00bs on xbox live on a bigger screen than anyone elses = priceless