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Calling you out...who owns a LED projector? - Page 3

post #61 of 99
Quote:
Originally Posted by johnzo1995 View Post

I have a real crazy idea, someone should take the 61" samsung LED rear projection engine out and make a projector out of it.

Same idea in my head too

But very hard to realize... Cant find good man in US who can sell me only stripped electronics parts from box and leave cabinet, screen and mirrors for free Ready to pay more than actual average cost of Samsung 61A750.
post #62 of 99
Quote:
Originally Posted by vsv View Post

Same idea in my head too

But very hard to realize... Cant find good man in US who can sell me only stripped electronics parts from box and leave cabinet, screen and mirrors for free Ready to pay more than actual average cost of Samsung 61A750.

I think it would be a better idea to buy the whole TV. The tv comes with all the input boards to drive the DMD engine. If you bought the engine from the parts website - I don't think it comes with all of the PCB boards to run the TV.

We should start a new thread on this, set up a paypal donation thing, and get someone to do it.

If and when 1080p LED projector come out and they are going to be $3000, this would be a $1300 DIY solution.
post #63 of 99
johnzo1995

waiting for pics from your HP screen with you on the front
similar like this one below

post #64 of 99
I'll be receiving a Dell M109S LED projector next week and post some thoughts/pictures.
post #65 of 99
Quote:
Originally Posted by johnzo1995 View Post

I think it would be a better idea to buy the whole TV. The tv comes with all the input boards to drive the DMD engine. If you bought the engine from the parts website - I don't think it comes with all of the PCB boards to run the TV.

We should start a new thread on this, set up a paypal donation thing, and get someone to do it.

If and when 1080p LED projector come out and they are going to be $3000, this would be a $1300 DIY solution.


I love this idea. It's been in my head for a few months now.

Help me out on some issues/questions, please. Are these statements correct?

1. From what I can tell you wouldn't even have to buy the 67 inch Samsung, the 61 incher would do the job. Same internals.
2. The 1080p DLP chip in the Sammy is wobulated.
3. Light output is going to be low, so a high gain screen and a dark room are mandatory to get, say a 100 inch diagonal image.
4. The current generation of Sammys can correctly display a 24p image. If I understand correctly, they operate on at 120hz. All frames in 60fps signals are doubled and all frames in a 24fps signal are displayed 5 times.
5. New lens needed to handle different throw distance and focus.
6. And most importantly, a direct front projection of the image straight out of the lens would result in a backwards image (left/right flopped).

-R
post #66 of 99
Quote:
Originally Posted by Reagan View Post

I love this idea. It's been in my head for a few months now.

Help me out on some issues/questions, please. Are these statements correct?

1. From what I can tell you wouldn't even have to buy the 67 inch Samsung, the 61 incher would do the job. Same internals.
2. The 1080p DLP chip in the Sammy is wobulated.
3. Light output is going to be low, so a high gain screen and a dark room are mandatory to get, say a 100 inch diagonal image.
4. The current generation of Sammys can correctly display a 24p image. If I understand correctly, they operate on at 120hz. All frames in 60fps signals are doubled and all frames in a 24fps signal are displayed 5 times.
5. New lens needed to handle different throw distance and focus.
6. And most importantly, a direct front projection of the image straight out of the lens would result in a backwards image (left/right flopped).

-R

1.yes
2.yes
3.350-400Lm from PT120 to 100"-110" Dalite HP screen will be good for me
4.yes
5.yes
6.service menu -> change flip-flop

Happy people from US and Canada, at ~$1500 you can buy LED DLP 3D
post #67 of 99
You can get a 2500 lumen LED array for under $200 USD shipped from luminus's phlatlight distributor. I might attempt to put this white high power LED in a DLP projector.
post #68 of 99
Thread Starter 
Quote:
Originally Posted by parawizard View Post

You can get a 2500 lumen LED array for under $200 USD shipped from luminus's phlatlight distributor. I might attempt to put this white high power LED in a DLP projector.

Sweet. If you decide to do that you will need to disable your projectors bulb detection and startup so it runs without a bulb. May not be exactly the same process for your projector but this should help:

http://www.diyaudio.com/forums/showt...5&pagenumber=1

http://www.lumenlab.com/forums/index...howtopic=24836 A helpful post or two here

Obviously projector should be unplugged and given plenty of time to discharge before attempting this.
post #69 of 99
Quote:
Originally Posted by Sisyphus View Post

Sweet. If you decide to do that you will need to disable your projectors bulb detection and startup so it runs without a bulb. May not be exactly the same process for your projector but this should help:

http://www.diyaudio.com/forums/showt...5&pagenumber=1

http://www.lumenlab.com/forums/index...howtopic=24836 A helpful post or two here

Obviously projector should be unplugged and given plenty of time to discharge before attempting this.

Yeah read all those posts already

I just need to get my hands on some broken projectors.
post #70 of 99
Quote:
Originally Posted by parawizard View Post

I might attempt to put this white high power LED in a DLP projector.

20W / 1000 L Ostar white led inside Infocus LP340 (SVGA DLP)

post #71 of 99

Good link. I have been looking at the Ostar LEDs. The Luminus ones are 2500 lumens.

A pretty penny though I just need to get me a decent DLP projector to play with
post #72 of 99
Whats a good place to look for a high power LED in the states?
post #73 of 99
I'm interested as well. I have an Eiki XGA lcd I'm waiting to gut once a light source is found

Victor
post #74 of 99
mouser, digikey, cutter (australia) have what you're looking for. You would probably want a light engine or module if you want an easier method. Alternatively you could use a lot of individual high-power LEDs (or some Cree MC-Es).

How will you power it? How will you cool it? You need an adequate LED driver (current regulated is better than voltage regulated for LEDs) and a pretty big heatsink if you're going with really high powered modules (even with a fan you will need a heatsink).
post #75 of 99
What I want to use is something like this: http://www.led1.de/shop/index.php?cN...-c-128_184_185 but I was wondering if I could find it in the states if it would be a little less $$. I was going to install it in the old lighting housing on a heatsink and get a pack to power it. I already modded my infocus to stay on with no bulb.
post #76 of 99
Can anyone comment how is watching movie on p400? I briefly used Mitsubishi PK-20 a year ago and it was horrible on my eyes... I usually watch movies with some light on the background because complete darkness hurts my eyes.
post #77 of 99
Quote:
Originally Posted by moovinfast View Post

What I want to use is something like this: http://www.led1.de/shop/index.php?cN...-c-128_184_185 but I was wondering if I could find it in the states if it would be a little less $$. I was going to install it in the old lighting housing on a heatsink and get a pack to power it. I already modded my infocus to stay on with no bulb.

Well digikey has:
http://search.digikey.com/scripts/Dk...me=475-1295-ND

I'm sure mouser has something similar but from a different company. Future Electronics is worth checking as well, but digikey/mouser/future tend to be a PITA to navigate unless you know what you want (exactly). cutter is pretty well known on a flashlight forum, most people even if they're in the US get their Crees from there, their site is pretty simple too, check it out they might have something better. For example one of these loaded with Q5 or R2 LEDs:
http://www.cutter.com.au/proddetail....=cut726&cat=39
http://www.cutter.com.au/proddetail.php?prod=cut839
post #78 of 99
Luminus Devices Only Distrubutor
http://avnetexpress.avnet.com/store/...01&action=home

More information on availability and a datasheet.


Quote:
Bryan,

I have some information for you.

CBT-90-W~ lead time is 4-6 weeks and price each is $60.00
CBM360- right now is only available as samples from Luminous Direct. I'm still waiting for a release date. Price each is going to be $120.00

CBM290~ 33 in stock, price each $170.00 online

Here is the Datasheet for CBM290
<<CBM-290-RGB_ Rev01.pdf>>
Quote:
Bryan,

For CBM360, the release date to full production is set at 4/1/09

Thank you for choosing Avnet Express!
Everlite LEDs (Their site is down atm)

http://www.everlite.cc

They have some 30watt and 50watt LEDs for resonable prices. Not Drivers available from them for the 50watt LEDs yet. Have been talking to the rep. Looking at 3000-4000 lumens from a single 50Watt at 6000 typical kelvin.

Mod thoughts

The Viewsonic PJL855 I have that is modded without the ballast and lamp is a 3LCD version. These have quite neat optics. I might opt to making a new housing for it and putting 3 x 50 Watt LEDs and a small lense behind each filament instead of splitting 3 ways from 1 source This will be an input of about 10000-12000 lumens.

 

CBM-290-RGB_ Rev01.pdf 286.0498046875k . file
post #79 of 99
Thread Starter 
Quote:
Originally Posted by parawizard View Post

The Viewsonic PJL855 I have that is modded without the ballast and lamp is a 3LCD version. These have quite neat optics. I might opt to making a new housing for it and putting 3 x 50 Watt LEDs and a small lense behind each filament instead of splitting 3 ways from 1 source This will be an input of about 10000-12000 lumens.

Awesome, go for it! You'll want to make sure it's not too hot near the lcd panels and that each LED is outputting the same amount of light.
post #80 of 99
Quote:
Originally Posted by klas View Post

Can anyone comment how is watching movie on p400? I briefly used Mitsubishi PK-20 a year ago and it was horrible on my eyes... I usually watch movies with some light on the background because complete darkness hurts my eyes.

I use my p400 everyday, its has replaced my 50" plasma. I have a 110" high power screen. Its awesome at night, movies look pretty damn good. The contrast is good.
post #81 of 99
Thread Starter 
Quote:
Originally Posted by johnzo1995 View Post

I use my p400 everyday, its has replaced my 50" plasma. I have a 110" high power screen. Its awesome at night, movies look pretty damn good. The contrast is good.

Without screenshots we have no way of knowing if you really own a high power.
post #82 of 99
Quote:
Originally Posted by johnzo1995 View Post

I use my p400 everyday, its has replaced my 50" plasma. I have a 110" high power screen. Its awesome at night, movies look pretty damn good. The contrast is good.

Thanks for your comments!

have you tried PK-20? Also, is P400 watchable with 60 watt bulb on the background?
post #83 of 99
Why can't anyone make a descent LED 720p projector?
post #84 of 99
Here is one quick shot, I need to learn how to use my D60.

Attachment 131394
LL
post #85 of 99
Quote:
Originally Posted by johnzo1995 View Post

Here is one quick shot, I need to learn how to use my D60.

Attachment 131394

thanks! So the only light was on the hallway? Do you have a table lamp in the same room that you can turn on and take the same picture?
post #86 of 99
Quote:
Originally Posted by johnzo1995 View Post

Here is one quick shot, I need to learn how to use my D60.

Attachment 131394


Roadhouse!
post #87 of 99
can someone confirm if the p400 has an internal or external battery like the earlier model did? I have looked and can not seem to find this information.
post #88 of 99
Thread Starter 
Quote:
Originally Posted by funkyab View Post

can someone confirm if the p400 has an internal or external battery like the earlier model did? I have looked and can not seem to find this information.

The user reviews I've seen say it's external.
post #89 of 99
I have seen reviews saying both external and internal which causes confusion. Also on the samsung product page and user manual it does mention a battery nor can i find a battery product listed. That in combination with the user in this thread using a tekkeon external battery to power the projecter makes me wonder if there is any battery solution available for this unit aside from 3rd party.
post #90 of 99
60watt LED Driver and 50Watt LED have been paid for.

LED is 3800 lumens @ 50watts or 76 Lumens per watt.

I should be able to fit the driver in place of the old Phillips ballast I removed. This should be pretty wicked.
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