DIY Video Projector

[Myren]

heres the pictures of LCD disassembly. again, university may unplug my system over the break, so get em while they're hot. only tools required are a regular phillips screwdriver and some way of getting out painfully small phillips head screws (i used a very small flat head screw driver), and a lot of patience.

frankbatzen: good words. thanks. inspiration.

currently running 100 inch wide screen. diagonal depends on form factor, 100 inch width is constant. brightness at this range with my DYS/DVS/BHC bulb (rated for 13000 lumens mean) with moderately efficient projector is good enough to allow ambient room lighting while in operations, however real movie watching and game playing is shitloads better with lights off.

i'd highly suggest people look into metal halide high intensity discharge bulbs. these things are the unquestionable grand mac ****. 40,000 lumens, 20000 (twenty THOUSAND) hour life for a measly 400 watts. $30 a bulb and requires $50 - $70 for ballast, but god damn is it a worthy investment. if you look hard enough, you can get them 5000 K color temperature, or 10,000 K color temperature with 30,000 lumens brightness. their energy (and therefore heat) efficiency is literally seconded by none. there is nothing better. if your really serious about a good high output system, do not not consider anything else. there are a number of different types of ballasts and lamps out there that will be pretty much custom tailored to any concievable system.

ah, man, finally got a chance to play gran turismo 3 again on the setup. i really missed my baby, my denso supra.

i'll probably be gone until weekend after this approaching one. bye all. have fun. remember: innovation, experimentation. well thought out risks are the way to go.

myren

[contrapasta]

Anyone get those pics??

I usually don't like posting messages that contain nothing important (cause I don't like reading them in return) But did anyone get his zip file?? Doesn't seem to be available @2:49 PST... his connection get unplugged already?? If someone can send them to me, I can serve them on my university alloted web space (unlimited bandwith as far as I know)

I'm about to buy/rip open a LCD panel too and I was looking forward to the pics....

Oh, and Myren a few quick questions, where are you getting your prices for your MH stuff, so far the online places I've seen have slightly higer bulb prices, but ballasts in the $100 range. And do you know if the electronic type of ballast is quiet? And did you modify(ie rip its original guts out) your projecter to fit the the new ballast/lamp set?
-Mike

[fender4]

contrapasta

You might find these links useful:
http://www.rpi.edu/dept/union/aquari...ml/DIY_MH.html
http://www.lighting.com/index.taf?_U...ers_list&_op=5
http://www.lighting.com/index.taf?_U...rs_list&_op=11

I couldn't download those pics from Myren either.

Also, I have made some very minor updates to my webpage, if anyone is interested.

Good luck.
-f4

[baybum]

Lighting?


http://www.premiumaquatics.com/Merch...y_Code=Sockets

[jjasniew]

I found some other pictures on Myrens link, but not the zip file.
Just go back "up" one level from the URL he gave...

[Axeman]

Can't seem to get any pix no matter where I go... Can you post them here?

[frankbatzen]

Alright, now I am able to post pics.

jjasniew, althoug I think (see my last post) that it doesn't make a lot of sense to go and look for the exact same parts just because they work for someone else, that probalbly doesn't apply to the lighting. So here are the specs for my bulb and ballast.

Bulb: Osram Power Star HQI-TS 400W
Ballast: May & Christe QI 400-03.2H

Don't look for the parts but for a whole lamp. I got one for 8$ (I was VERY lucky with all parts) off of ebay. It was a very shabby convolute of 10 of them but I only bid on one. You can also buy Sodium discharge lamps, which generally are a bit cheaper on ebay because there are no aquarium guys wanting to buy them, which is the case for HQI-Lamps. For the Sodium-lamps you may have to buy a new Ignitor-coil (just translating to english word by word...) since there a two different types. One (Pulszündgerät) that only works for sodium-lamps and one (Impulszündgerät) that works for HQI and Sodium. The bulbs are fairly large. HQI-TS has sockets on both sides and the bulbs are SMALLER. HQI-T are screw-in bulbs (onesided) and are said to be a bit more spot-light. However they are much larger (same wattage), so forget them. First pics are of the lamp in the housing of the OHP and of the ballas on the outside of the housing. Screwed to the top of the housing is the ballast for the display (silver-grey). Everything below that is the electronics for the lamp wiht the big green thing being the ballast. More pics to come.

[frankbatzen]

In case you wander why the lamp is crooked in the above picture, it's not fixed, yet. It was fixed exactly below the center of the fresnel, but I now found out that the picture gets a lot sharper when it is fixed slightly offside. Dunno why. Anyway second pic, closeup of the bulb, with a frontside-mirror fixed below it. I don't think it does a lot of good, but it came with the OHP, so what the hell.

[frankbatzen]

The ballast.

[frankbatzen]

I will now continue to reassemble the projector. Will take more pictures and post them instantly. Damn, I am getting a valuable member of this forum. Have to get used to that first.

g!zmo aka Frank Batzen