I read allot of the messages inhere, but I have and I guess more have some practical newbie questions.
Like I have one, for the LCD I read and hear you need to beam the light directly 'through' the LCD.
Maybe it is a stupid question but is the LCD translucent then?
Or do you need an reflection of the LCD on a cold mirror orso to get the image?
This is my first question alrdy cause I couldn't figure it out myself, maybe cause I didn't C an translucated LCD myself, besides then those Nview panels.
But I wasn't planning to use such panel I gonna try to make my as compact as possible.
Also I go for the bright white led's, but these are practical questions I gonna have later if I don't find it, for the rest I will post my experience in here.
Like I have one, for the LCD I read and hear you need to beam the light directly 'through' the LCD.
Maybe it is a stupid question but is the LCD translucent then?
Or do you need an reflection of the LCD on a cold mirror orso to get the image?
This is my first question alrdy cause I couldn't figure it out myself, maybe cause I didn't C an translucated LCD myself, besides then those Nview panels.
But I wasn't planning to use such panel I gonna try to make my as compact as possible.
Also I go for the bright white led's, but these are practical questions I gonna have later if I don't find it, for the rest I will post my experience in here.
Ok, I want to give it a go with led's for sure,
I gonna go for the 9000mcd cause they looks to me the brightest, the 5000mcd looks kinda yellow.
so if I can follow the thinking of vdi_nena, I go for as many led's as possible, so I gonna order around 75 with 5mm metal holders.
And I hope I can manage to get a good bright focussed light with somewhere round 30-50 led's.
With these led's I don't have to order cold mirrors and so on, no cooling = no noise.
Let's pray the bundled light of the led's will be shiny and hopefully easy to bundle through the lens.
Leds' to buy
I gonna go for the 9000mcd cause they looks to me the brightest, the 5000mcd looks kinda yellow.
so if I can follow the thinking of vdi_nena, I go for as many led's as possible, so I gonna order around 75 with 5mm metal holders.
And I hope I can manage to get a good bright focussed light with somewhere round 30-50 led's.
With these led's I don't have to order cold mirrors and so on, no cooling = no noise.
Let's pray the bundled light of the led's will be shiny and hopefully easy to bundle through the lens.
Leds' to buy
New question...don't expect allot of response tho, 
hehe
not very intrseting for newbies and/or new projects?
o well here I go I am thinking of buying me an lcd screen that will overdue his bussinuss but I don't have the driver board with it.
So anybody can help me with that how I gonna get this screeen connected with or an vga connection or pal or ntsc orso ?
DELL INSPIRON 4000 4100 C600 14" LCD ITXG76E
this was my first choise cause everything is there alrdy for very cheap like driver board cabling etc.
5.6" Color LCD flat display/Under 1.75" deep
this one I like so much I gonna buy it for sure, but don't gonna destroy it to trow in an projector
Slimmest TFT LCD Monitor 5.6"+ TV 82.99 GBP
hehenot very intrseting for newbies and/or new projects?
o well here I go I am thinking of buying me an lcd screen that will overdue his bussinuss but I don't have the driver board with it.
So anybody can help me with that how I gonna get this screeen connected with or an vga connection or pal or ntsc orso ?
DELL INSPIRON 4000 4100 C600 14" LCD ITXG76E
this was my first choise cause everything is there alrdy for very cheap like driver board cabling etc.
5.6" Color LCD flat display/Under 1.75" deep
this one I like so much I gonna buy it for sure, but don't gonna destroy it to trow in an projector
Slimmest TFT LCD Monitor 5.6"+ TV 82.99 GBP
Tekker,
To control that 14" LCD panel, you would need a seperate controller which almost always runs several hundred dollars. If you want a screen that size, you're better off buying something like this
10 ms response time, 1024x768 resolution, although I don't think we have any info on how easy the boards seperate.
If I had $200 to blow, I'd definately buy this monitor in a heartbeat.
--Clint
To control that 14" LCD panel, you would need a seperate controller which almost always runs several hundred dollars. If you want a screen that size, you're better off buying something like this
10 ms response time, 1024x768 resolution, although I don't think we have any info on how easy the boards seperate.
If I had $200 to blow, I'd definately buy this monitor in a heartbeat.
--Clint
ok, ... I started reading the whole issue (thread; LCD panels; from morien) about that issue about those extra controllers to steer the LCD(TFT) and it looks not soo simple.
So and is this Sampo PD-50FA 14" 1024x768 TFT LCD Monitor
a standalone?
I C it has an standard 15-ping VGA connector so I guess this is the non-DVI connector, the standard output off a regular video card.
So if I want I can take the backlights out of this baby and control it by an extra simple 300Mhz PC with an simple G-force 1 card.
It's even lowered it's only 170, I wrote myself a mail if it's possible to ship it to Europe if this is so, then I am on the road again.
Then I can start drawing an detailed box to put everything in.
So and is this Sampo PD-50FA 14" 1024x768 TFT LCD Monitor
a standalone?
I C it has an standard 15-ping VGA connector so I guess this is the non-DVI connector, the standard output off a regular video card.
So if I want I can take the backlights out of this baby and control it by an extra simple 300Mhz PC with an simple G-force 1 card.
It's even lowered it's only 170, I wrote myself a mail if it's possible to ship it to Europe if this is so, then I am on the road again.
Then I can start drawing an detailed box to put everything in.
Correct. The LCD screen you had looked at before was a replacement screen for a laptop.
The screen link I gave you is an example of a monitor that is stand alone, you are correct in all of that.
Keep in mind, I *don't* know how easy it would be to remove the backlight and the panels in the back of this panel. It's something that I wouldn't mind trying though.
--Clint
The screen link I gave you is an example of a monitor that is stand alone, you are correct in all of that.
Keep in mind, I *don't* know how easy it would be to remove the backlight and the panels in the back of this panel. It's something that I wouldn't mind trying though.
--Clint
No problem seeing here, I changed many Thinkpads screens, can't be in a tighter room then in a laptop, if it all don't work out I still can close the case and use it for sell or second monitor so no big lost there, or ... I break it then I have a bigger problem.
ok thx gonna order this little baby if the shipping fee isn't like 50$.
Now the, I think harder part, how can you calculate the distances between lens and screen and the frensel and LCD(TFT).
I think I just can go sit and shift but I guess peep'z here alrdy have allot off experience in this issue.
I guess it all has to do with the lens I have and/or gonna buy.
So this is an issue that can wait.
First I go read a bit more inhere, and try to find out what kind of lens I can/gonna use.
Because I alrdy spend so much an a screen I need to cut back in other things.
Then there is the light, wich I read you need at least 800 bright white leds before you even come close to an 600-800watt lightbulb.
You need hell bright light, and the more the better, so the led's are out of a question I don't gonna soldier 600-800 led's on back panel. (gonna be to big also I guess)
Maybe later I try it first I wanna C some moving pictures on my wall. 😉
To bad tho I liked the idea of a light that work for 10.000 hours, with no need for fan's and no worries about heat.
I gonna try later the use of Halogen lamps the are looking prommising to me to, bundle like 4-6 together so you have 16.000-24.000 Lumen, also longer lifetime and I think they produce a little less heat.
Ok tomorrow I jump in my car and go drive to kodak shops and small and older movie theathers and C what they can spare, they mostly have some old lenses they maybe don't use anymore.
Or like those (english word for it???) those reflecting half round where you put your lamp in.
Or even maybe old bulbs with some socket holders or something I can use to test with till I know for sure what kinda lamp I want to use.
Older factory's has those older light also, they are attached high on the sealing they mostly give allot of light, just gonna check them out. They need to be pre-heated tho, but they are in such (chandelie) again the english word I can't find hehe)
omg you really can find some usefull stuff in the world 😀
you want more light hehe look at this 450.000 lumen
ok thx gonna order this little baby if the shipping fee isn't like 50$.
Now the, I think harder part, how can you calculate the distances between lens and screen and the frensel and LCD(TFT).
I think I just can go sit and shift but I guess peep'z here alrdy have allot off experience in this issue.
I guess it all has to do with the lens I have and/or gonna buy.
So this is an issue that can wait.
First I go read a bit more inhere, and try to find out what kind of lens I can/gonna use.
Because I alrdy spend so much an a screen I need to cut back in other things.
Then there is the light, wich I read you need at least 800 bright white leds before you even come close to an 600-800watt lightbulb.
You need hell bright light, and the more the better, so the led's are out of a question I don't gonna soldier 600-800 led's on back panel. (gonna be to big also I guess)
Maybe later I try it first I wanna C some moving pictures on my wall. 😉
To bad tho I liked the idea of a light that work for 10.000 hours, with no need for fan's and no worries about heat.
I gonna try later the use of Halogen lamps the are looking prommising to me to, bundle like 4-6 together so you have 16.000-24.000 Lumen, also longer lifetime and I think they produce a little less heat.
Ok tomorrow I jump in my car and go drive to kodak shops and small and older movie theathers and C what they can spare, they mostly have some old lenses they maybe don't use anymore.
Or like those (english word for it???) those reflecting half round where you put your lamp in.
Or even maybe old bulbs with some socket holders or something I can use to test with till I know for sure what kinda lamp I want to use.
Older factory's has those older light also, they are attached high on the sealing they mostly give allot of light, just gonna check them out. They need to be pre-heated tho, but they are in such (chandelie) again the english word I can't find hehe)
omg you really can find some usefull stuff in the world 😀
you want more light hehe look at this 450.000 lumen
ooya, one big question, an 14" screen is pretty big hth I gonna get this whole plate lightened and then squeeze it through an little lens, I hope this isn't done with mirrors, cause then you have allot of trimming to do, no ?
A 14" screen is nice because it fits almost perfectly on an overhead projector. They usually are build to hold 8,5"x11" transparency sheets. The diagonal of an 8,5x11 is 13,9" -- which is basically close enough to a 14" LCD screen.
The type of lens that you're use is called a fresnel. Also can be called a "flat lens". Do a search for relevant topics on the forum if you're unfamiliar with them, but they're inexpensive, and they're large. That's what we need. 🙂
I hope that gives you a start. Overhead projectors use fresnels in them. Your best bet for finding good optics and getting a good setup is to buy an old overhead projector from an office surplus store or from E-Bay, and you should be fine.
Hope that helps!
--Clint
The type of lens that you're use is called a fresnel. Also can be called a "flat lens". Do a search for relevant topics on the forum if you're unfamiliar with them, but they're inexpensive, and they're large. That's what we need. 🙂
I hope that gives you a start. Overhead projectors use fresnels in them. Your best bet for finding good optics and getting a good setup is to buy an old overhead projector from an office surplus store or from E-Bay, and you should be fine.
Hope that helps!
--Clint
HanClinto said:
I can't say I am familair with those fresnels but I read about it alrdy allot.
But maybe to get started I get myself first an old overhead projector alrdy to start testing and understanding the LCD and stuff.
After, I will build an DIY projector were everything will be putted in a box, and can be attached to my sealing.
and yes you helped alrdy allot, thx
Gonna go for a complete construction for my projector project.
So I have some new questions, this is my diagram till now
So how can I get me the right fresnel lenses, I don't think they are all the same in 15".
So how can I find out what fresnel I need to buy.
Also what type of lens I gonna have to search as for the projection lens ?
I should be able to find a name for a particular lens I can use for
this project to work, cause I am in a tight budget and don't want
to waste to much money on testen and for as far as I C you guy's
alrdy know and tried allot so, maybe I was thinking you could help me with this one ?
So I have some new questions, this is my diagram till now
An externally hosted image should be here but it was not working when we last tested it.
So how can I get me the right fresnel lenses, I don't think they are all the same in 15".
So how can I find out what fresnel I need to buy.
Also what type of lens I gonna have to search as for the projection lens ?
I should be able to find a name for a particular lens I can use for
this project to work, cause I am in a tight budget and don't want
to waste to much money on testen and for as far as I C you guy's
alrdy know and tried allot so, maybe I was thinking you could help me with this one ?
Are such lenses of any use, I can get my hands on one and I would know if these are usefull ?
An externally hosted image should be here but it was not working when we last tested it.
one of your fans in the pic looks like a sideways swastika. Anywho, I see you are interested in using leds. For a very varge 14" screen, it is not at all cost effective, but with a 5" lcd and a delta IV lens, you will have a tiny, bright lcd projector that uses leds. Find the thread verbose mustafa project updat, and the 9000 mcd leds thread for more on modified backlight projection.
hehe yeah I think my coolers will make a bunch of noise shaped like that °-)) 😉
And your right LED's are out of a question for me I don't gonna soldier like 800 led's to a backpanel, so no leds, I go for a HM bulb
with ballast. I gonna use the 400watt first later I always can
upgrade to a 1000watt light.
But I have so many questions to go, the more I read about it
(and that's allot alrdy) the more questions rise, instead the otherway around.
First I need to find out if I am right about my fresnels, I found out
I need a CONDENSER one, and a FIELD fresnel lens.
The CONDENSER I need to put between the LCD and the
projection lens and if I am not wrong I need to put the FIELD one
between the light source and the LCD.
- PLS can anybody clear me out on this one ?
Second I am trying to find out what kind of projection lens I gonna need to use for a 14" LCD.
I am thinking for buying the one Alan, of DIY Labs offer on ebay.
Ebay "the lens"
I mailed with him alrdy and he sais it will work great with a LCD of
14", so I gonna order this one, if nobody thinks this will not work.
The big problem is I live in Europe and it's expensive for me to ship it all to here.
So I need to be sure, I don't mind allot to test thing but shipping
is more expensive then lens self, so I need to be clear on that.
And your right LED's are out of a question for me I don't gonna soldier like 800 led's to a backpanel, so no leds, I go for a HM bulb
with ballast. I gonna use the 400watt first later I always can
upgrade to a 1000watt light.
But I have so many questions to go, the more I read about it
(and that's allot alrdy) the more questions rise, instead the otherway around.
First I need to find out if I am right about my fresnels, I found out
I need a CONDENSER one, and a FIELD fresnel lens.
The CONDENSER I need to put between the LCD and the
projection lens and if I am not wrong I need to put the FIELD one
between the light source and the LCD.
- PLS can anybody clear me out on this one ?
Second I am trying to find out what kind of projection lens I gonna need to use for a 14" LCD.
I am thinking for buying the one Alan, of DIY Labs offer on ebay.
Ebay "the lens"
I mailed with him alrdy and he sais it will work great with a LCD of
14", so I gonna order this one, if nobody thinks this will not work.
The big problem is I live in Europe and it's expensive for me to ship it all to here.
So I need to be sure, I don't mind allot to test thing but shipping
is more expensive then lens self, so I need to be clear on that.
Ok testing is the only solution here. So orderering and payingTekker said:
shipping cost of over the 50$ this way is testing expensive, but if
it has to it has to.
Other thing, Black-Out cloth is it that cloth that has on one side a sort of rubber and other plain curtain material ?
update project, still waiting for my LCD °-(((
Bought myself a condens lens and hope I can go test with it very good
Also ordered my bulb + ballast get almost the same as brad's project
Ballast: Advance 400W Multi-Tap Metal Halide Ballast with Capacitor, new.
Lamp: Philips MS400/U/ED28 400W bulb with following specs: 40,000 initial lumens, 4000K, 20,000 hour life, new.
This is my update in pic format.
Condens lens 3.5"
Bought myself a condens lens and hope I can go test with it very good
Also ordered my bulb + ballast get almost the same as brad's project
Ballast: Advance 400W Multi-Tap Metal Halide Ballast with Capacitor, new.
Lamp: Philips MS400/U/ED28 400W bulb with following specs: 40,000 initial lumens, 4000K, 20,000 hour life, new.
This is my update in pic format.
An externally hosted image should be here but it was not working when we last tested it.
Condens lens 3.5"
An externally hosted image should be here but it was not working when we last tested it.
Ok, pfuw I found the really really good explaination now for the black out cloth.
Then I was lucky I bought myself the right piece of cloth °-))
here is the link
http://www.diyaudio.com/forums/showthread.php?s=&threadid=9747&highlight=big+LCD
Still didn't hear or found on the forum how I need to get the 14"
LCD-picture through my projection lens, wish I got a theoretical
explaination about it, cause still don't know how I gonna get that
big of a picture through my lens with just an frensel.
Then I was lucky I bought myself the right piece of cloth °-))
here is the link
http://www.diyaudio.com/forums/showthread.php?s=&threadid=9747&highlight=big+LCD
Still didn't hear or found on the forum how I need to get the 14"
LCD-picture through my projection lens, wish I got a theoretical
explaination about it, cause still don't know how I gonna get that
big of a picture through my lens with just an frensel.
com'n you guy's only have like couple of reply's and 540 views
something in % is not right, am I asking such wierd questions or
do I smell or something °-) ?
something in % is not right, am I asking such wierd questions or
do I smell or something °-) ?
heya there, long time, but I didn't stop dooing my project I just read allot
about it and was waiting on my products.
I went to a light shops like hell but not one could (wanted) to help me out,
fianlly I found one pfuw !
I told it was for a final test paper for school then they know there name
will be mentioned in a tech-school orso and that's free advertisement. °-))
Ooowell I bought myself a lightbulb 400watt has 40.000 Lumen life for
10.000 hours and has a temp color off 4000-4200Kelvin.
What you all need just to light such bulb OMFG, the bulb costed me like
30€ then a Ballast starter and condensors and a fitting of porcelein. all
together it was + some cable 120€ the ballast alone costed 50€ pffff
I bought my cloth to project on it was somewere around 12€ a little bit of
wood to make the frame was 5€ orso.
The LCD was arrived today also it costed me almost as much as I bought
one here BUT there was a controller with it in the same shipping so that
makes it all good, it's a great controller I can just do now everything from
out my bed or from anywere, you can surf with it, has mouse buttons had
special functions and so on and on, I am happy with it.
This will be used when my projector is finished and when it hang on the
ceiling to control everything.
The LCD + controller + taxes (the payement I did with Bidpay COST WAY
TO MUCH FROM EU TO US : DON'T DO IT) and shipping costed me (WAY TO
MUCH) but hey that I know now : 240€ for the LCD + RC + Shipping then +
25€ for sending the money (Bidpay) and 20€ taxes to get it in my
country) so it became a expensive LCD lucky I had a RC with it.
Here are my picture from all I recieved alrdy, the lens and fresnels will be
shipped next week orso, so from then I can go test with it all.
Only thing is I think I alrdy broke my LCD-driver-baord => **** happend but
it suck big time, driver boards are soo hard to find I think. I dropped it I
could kill myself.
Condensor :
- 1 x 4.5µF 250V 50/60Hertz
- 2 x 20µF 250V
Starter :
Ballast:
about it and was waiting on my products.
I went to a light shops like hell but not one could (wanted) to help me out,
fianlly I found one pfuw !
I told it was for a final test paper for school then they know there name
will be mentioned in a tech-school orso and that's free advertisement. °-))
Ooowell I bought myself a lightbulb 400watt has 40.000 Lumen life for
10.000 hours and has a temp color off 4000-4200Kelvin.
What you all need just to light such bulb OMFG, the bulb costed me like
30€ then a Ballast starter and condensors and a fitting of porcelein. all
together it was + some cable 120€ the ballast alone costed 50€ pffff
I bought my cloth to project on it was somewere around 12€ a little bit of
wood to make the frame was 5€ orso.
The LCD was arrived today also it costed me almost as much as I bought
one here BUT there was a controller with it in the same shipping so that
makes it all good, it's a great controller I can just do now everything from
out my bed or from anywere, you can surf with it, has mouse buttons had
special functions and so on and on, I am happy with it.
This will be used when my projector is finished and when it hang on the
ceiling to control everything.
The LCD + controller + taxes (the payement I did with Bidpay COST WAY
TO MUCH FROM EU TO US : DON'T DO IT) and shipping costed me (WAY TO
MUCH) but hey that I know now : 240€ for the LCD + RC + Shipping then +
25€ for sending the money (Bidpay) and 20€ taxes to get it in my
country) so it became a expensive LCD lucky I had a RC with it.
Here are my picture from all I recieved alrdy, the lens and fresnels will be
shipped next week orso, so from then I can go test with it all.
Only thing is I think I alrdy broke my LCD-driver-baord => **** happend but
it suck big time, driver boards are soo hard to find I think. I dropped it I
could kill myself.
Condensor :
- 1 x 4.5µF 250V 50/60Hertz
- 2 x 20µF 250V
An externally hosted image should be here but it was not working when we last tested it.
Starter :
An externally hosted image should be here but it was not working when we last tested it.
Ballast:
An externally hosted image should be here but it was not working when we last tested it.
Proxima Ovation A822C
Ok.....I just won a auction on ebay for a Proxima Ovation A822C
True-color LCD Projection Panel, AC Power Supply, Remote Control, Dust Cover, Users Guide and Connecting Cables.
Specs: PC & Mac Compatible; Video Compatibility NTSC M, PAL B, and SECAM; Connectors DB25, Serial, S-Video and RCA; Display Area 8.3 X 6.25 inches; Resolution 640x480 Pixels.
All for $187.50
I sure hope this panel is ok for diy projector....any info on this unit + or - would help me deal with the rest of my project.
only $300.00 left for other needed parts.....I already have 7 complete 1000w smh units(They cost me $0.00 😎 )
Ok.....I just won a auction on ebay for a Proxima Ovation A822C
True-color LCD Projection Panel, AC Power Supply, Remote Control, Dust Cover, Users Guide and Connecting Cables.
Specs: PC & Mac Compatible; Video Compatibility NTSC M, PAL B, and SECAM; Connectors DB25, Serial, S-Video and RCA; Display Area 8.3 X 6.25 inches; Resolution 640x480 Pixels.
All for $187.50
I sure hope this panel is ok for diy projector....any info on this unit + or - would help me deal with the rest of my project.
only $300.00 left for other needed parts.....I already have 7 complete 1000w smh units(They cost me $0.00 😎 )
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