[sdubb]

Ok if you have been on this site for awhile you probably have seen my post about my portable DVD player Basically a zoombox of sorts with the DVD built in and the lil speaker I wanted something I could just plug in and throw Movie in and ka-ching I think I have all the parts and am ready to put it all together

7" portable DVD player....$35
MR16 12V 50Watt bulb... Free (first pics are 250 watt OHP now its a 12V 50Watt MR16)
lamp socket...............$3
Fresnels from OHP.............. Free Kinda (bought it years ago for like $80-100 did the projection panel thing
but I say free cuz it was laying around)
Fan from computer........ Free
Triplet from LL...............(Well I will be swapping this back and forth from my 15 til i decide how much i like
then prob buy one)
----------------------------------------------------------------------------------------------------- --------

Wood need to buy to make the enclosure
Misc screws brads and what not
probably will put some computer speaks connected to the headphone out jack for better sound output
Let me know what you think as far as things to do betterand what not.

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This post has been edited by sdubb: 27 January 2008 - 04:29 AM

[jeffek]

currious to see how that light works ???
its frosted isnt it ?

nice use of spare parts .. why let them go to waste

[sdubb]

Okay so couldnt wait any longer I snapped some pics with me holding the triplet and pushing the shutter on the camera I need to find better settings on my camera I forgot what I used on when I snapped pics for my 15" but you get the idea lots of light leaks the bulb was the brightest one I could find I did not want to use a ballast and I didnt have much luck with the CFL but I did not have any reflecting material plus I am trying to keep it small I was going to stick with my OHP bulb but 75HRS NO THANKS so that when I saw this bulb and thought hey it sure looks like a metal halide the Kelvin is only 2900 so not the best but small also for the bulb is 150W 2650 Lumens and 3000 Hrs of life and runs off straight 120V Wall middle pic no triplet others holding triplet and pushing camera

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This post has been edited by sdubb: 23 August 2007 - 05:12 AM

[SIMUL8R]

sdubb, do they make that kind of bulb clear without the frost? The arc is what must be projected onto the fresnels. BTW, what is the distance from the wall and the diagonal your getting?

[jeffek]

here u go this should do it for you if you dont want a ballast

http://www.1000bulbs...p?product=33155

also the color temp is much better... and its 8900 lumens ... wow

This post has been edited by jeffek: 23 August 2007 - 07:45 AM

[sdubb]

SIMUL8R, on Aug 23 2007, 12:28 AM, said:

sdubb, do they make that kind of bulb clear without the frost? The arc is what must be projected onto the fresnels. BTW, what is the distance from the wall and the diagonal your getting?

Yeah they do and I looked all over for it but the only one I could find was a 60 Watt I know where you are going with the question Sim I just got it cuz it looked like a metal halide and it was just plug it in to the wall plus I thought for 5 bux its worth a try also thought maybe the white frost type stuff would help with the overall color I will get some dimensions tonight for ya when I get off work. As far as jeffek do you think that bulb could work I thought we were looking for a small arc type bulb I guess maybe if I put a reflector behind it kinda like a spot light style it could work anybody else think this could be a decent bulb to use.

This post has been edited by sdubb: 23 August 2007 - 03:10 PM

[SNESguy]

The halogen tubes inside of those things is pretty short, too. Maybe you could find a 100 watt one?

[sdubb]

As far as the clear ones I am only coming up with 60 watt Hmmmmmmmmm to bad that white frost is on the inside Hmmmmmmmmm i guess I could just break the shell and make a custom glass enclosure. Hmmm what to do what to do. is there anyway to swap shells or is that out of the ballaprk?

This post has been edited by sdubb: 23 August 2007 - 10:40 PM

[sdubb]

SIMUL8R, on Aug 23 2007, 12:28 AM, said:

sdubb, do they make that kind of bulb clear without the frost? The arc is what must be projected onto the fresnels. BTW, what is the distance from the wall and the diagonal your getting?

As Far as the diaganol I am not sure its basically 5 feet across and about 10 Feet away from the wall that my best guestimate as I took everything down as I have kids that like to break stuff If you know what I mean

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[SIMUL8R]

sdubb, on Aug 23 2007, 03:39 PM, said:

As far as the clear ones I am only coming up with 60 watt Hmmmmmmmmm to bad that white frost is on the inside Hmmmmmmmmm i guess I could just break the shell and make a custom glass enclosure. Hmmm what to do what to do. is there anyway to swap shells or is that out of the ballaprk?

I don't think you can just change the jacket and work with it. I beleive these bulbs are under a vacuum to prolong the life of the thin electrode otherwise they burn out quicker.

sdubb, on Aug 24 2007, 05:45 PM, said:

As Far as the diaganol I am not sure its basically 5 feet across and about 10 Feet away from the wall that my best guestimate as I took everything down as I have kids that like to break stuff If you know what I mean

Then I'd say that the ratio of projecting is about the same since my 75+/- diagonal images were about from 13 feet away and yours at 10'.

[SIMUL8R]

Just out of curiosity, are you using a rear fresnel? If you can, remove it and just shine the frosted lamp onto the lcd with the field fresnel after the lcd. I would expect a bad hot spot to occur but possibly a better center image, maybe.

If it works then perhaps a sheet of diffuser between the lamp and the lcd to spread the light across evenly.

[sdubb]

SIMUL8R, on Aug 24 2007, 06:07 PM, said:

Just out of curiosity, are you using a rear fresnel? If you can, remove it and just shine the frosted lamp onto the lcd with the field fresnel after the lcd. I would expect a bad hot spot to occur but possibly a better center image, maybe.

If it works then perhaps a sheet of diffuser between the lamp and the lcd to spread the light across evenly.

yes I am using a rear fres I just cut my OHP fres on a table saw I shall try it tonight and we shall see what happens I am thinkning I might just go back to my OHP bulb I am just unhappy with the 75 HRS its friday night so tonight will be testing night I will try the same bulb with a condensor I got from some slide projector see earlier topic for that I know nothing about condesors so lets just see what happens. that last pic is yesterday just me holding the triplet

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This post has been edited by sdubb: 25 August 2007 - 01:25 AM

[sdubb]

yesterday pic

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[SIMUL8R]

woohoo, more test's....

[sdubb]

SIMUL8R, on Aug 24 2007, 06:27 PM, said:

woohoo, more test's....

the popcorn comes after the test are all done plus I just won another portable DVD player on ebay for 20 bux looks like (twist my arm) I will be making another one boy I just cant control myself these lil ones are addicting but hey have you seen victor-eyd he has quite a few but nice ones mine is junk thrown together maybe somebody might want to buy this one i just won so I can spend time with the fam

This post has been edited by sdubb: 25 August 2007 - 01:48 AM

[x_25]

I know how to keep you from making any more small projectors. Any more lcds that you end up buying you can send to me. Anyway, i will have some new pictures of my projector up in a little bit on my own thred. i just rearanged my room and i now have what may be the largest projection from a psone projector to date, 114" diagnal. Amazingly it is still fully watchable.

I hope you can get your test pictures up before LL goes down for the weekend. I am interested in what you can do with that bulb that you got.

**goes back to watching starwars on a projection that is 92" wide **

PS. i love your use of whatever you had on hand (realized that was a bad pun after i posted it) to test with. Might i sugest that if you can get your hands on some k-nex they are very useful for prototyping.

This post has been edited by x_25: 25 August 2007 - 02:29 AM

[sdubb]

x_25, on Aug 24 2007, 07:27 PM, said:

I know how to keep you from making any more small projectors. Any more lcds that you end up buying you can send to me. Anyway, i will have some new pictures of my projector up in a little bit on my own thred. i just rearanged my room and i now have what may be the largest projection from a psone projector to date, 114" diagnal. Amazingly it is still fully watchable.

I hope you can get your test pictures up before LL goes down for the weekend. I am interested in what you can do with that bulb that you got.

**goes back to watching starwars on a projection that is 92" wide **

Well I probably wont these 2 boys of mine keep me busy I cant seem to get them to bed early and thats when the magic happens when the kids are asleep. But I shall try

[x_25]

did you manage to get your kids to go to bed? if not, duct tape does a great job of keeping things from moving...

[sdubb]

Actually X i fell asleep before my kids I was out of it I am messing with the stuff right now looks like i most likely will not be using the OHP in fact I just blew both of them I must have wired it wrong but its just 2 wires so no testing with the OHP bulb kinda wanted to see it in action so back to the original bulb 150 watt halogena I can just barely see an image in my garage its afternoon so lots of sun shining in the garage no thats sad hopefully pics tonight

I might try to get one of those small 150 halogen work light double ended ones they look about the same as what I have without the frost white on it.............. we shall see

This post has been edited by sdubb: 25 August 2007 - 11:50 PM

[sdubb]

Anybody know why I blew the bulb I was just straight to bulb is there a special way did I just have them reversed both of them blew as soon as I plugged them in

[sdubb]

Okay so I tried a few things out tonight the halogena bulb with a condesor I had didnt help put to much tried the idea Sim gave me no rear fres it was real bad so a No go there. I kinda got sick of fighting with the bulb so I think now I am just going to stick with the OHP style bulbs unless anybody else has a better option that requires no ballast and runs straight off the wall 120V point source I am trying to get some info on those bulbs people are using in OHP that have the reflector built in HRS Kelvin wiring and what not............

Sorry guys I am ditching this bulb it might be great for a psone style but didnt work how i wanted with my setup so back to square one

[joecnc2006]

you really need to use a point light source, and have the rear fresnel concentrated to that point source.

Joe

[TESCORP]

What about the OHP bulbs I use? its a 300W 120v built in reflector. I have had great success with these in my Mini-Z and mini Haas builds.

[sdubb]

TESCORP, on Aug 27 2007, 01:16 PM, said:

What about the OHP bulbs I use? its a 300W 120v built in reflector. I have had great success with these in my Mini-Z and mini Haas builds.

Thanks TESCORP i was looking for something with better hours than 75 oh well I see that you dont sell these can you send me a link or give me the specs and exactly what I am looking for also are you buying the holders for them or are you riging something up.

[sdubb]

Ok I think I might have something that will work for me as no tools or very little I should say and great ease of tweaking so you say you wanna see it............


Its a DVD holder I got from Big Lots for 20 bux I think this might just be a perfect home for my player. OF course everything will be pushed to the top but what do you think MOCK SETUP be kind I stuck the halogena bulb in it form the first post

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