Calling you out...who owns a LED projector?

vsv · 01-13-09, 07:13 AM

Quote:

Originally Posted by johnzo1995

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.

johnzo1995 · 01-13-09, 10:29 AM

Quote:

Originally Posted by vsv

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.

vsv · 01-15-09, 07:41 AM

johnzo1995

waiting for pics from your HP screen with you on the front

similar like this one below

klover · 01-16-09, 01:37 PM

I'll be receiving a Dell M109S LED projector next week and post some thoughts/pictures.

Reagan · 01-16-09, 02:33 PM

Quote:

Originally Posted by johnzo1995

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

vsv · 01-16-09, 05:52 PM

Quote:

Originally Posted by Reagan

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

parawizard · 01-18-09, 03:26 PM

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.

Sisyphus · 01-18-09, 03:53 PM

Quote:

Originally Posted by parawizard

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.

parawizard · 01-19-09, 12:13 AM

Quote:

Originally Posted by Sisyphus

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.

vsv · 01-19-09, 03:21 AM

Quote:

Originally Posted by parawizard

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)

parawizard · 01-19-09, 03:47 PM

Quote:

Originally Posted by vsv

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

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

moovinfast · 01-20-09, 06:07 AM

Whats a good place to look for a high power LED in the states?

victor-eyd · 01-20-09, 11:22 AM

I'm interested as well. I have an Eiki XGA lcd I'm waiting to gut once a light source is found

Victor

crazedmodder · 01-20-09, 12:09 PM

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).

moovinfast · 01-20-09, 06:21 PM

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.

klas · 01-20-09, 07:35 PM

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.

crazedmodder · 01-21-09, 04:41 PM

Quote:

Originally Posted by moovinfast

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

parawizard · 01-22-09, 07:50 PM

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.

Sisyphus · 01-22-09, 11:28 PM

Quote:

Originally Posted by parawizard

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.

johnzo1995 · 01-23-09, 01:10 PM

Quote:

Originally Posted by klas

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.

Sisyphus · 01-23-09, 02:32 PM

Quote:

Originally Posted by johnzo1995

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.

klas · 01-23-09, 02:56 PM

Quote:

Originally Posted by johnzo1995

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?

klas · 01-26-09, 06:21 PM

Why can't anyone make a descent LED 720p projector?

johnzo1995 · 01-26-09, 10:31 PM

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

p400hp.JPG

klas · 01-27-09, 02:58 PM

Quote:

Originally Posted by johnzo1995

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?

fs123 · 01-27-09, 06:25 PM

Quote:

Originally Posted by johnzo1995

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

Attachment 131394

Roadhouse!

funkyab · 02-03-09, 01:44 AM

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.

Sisyphus · 02-03-09, 10:13 AM

Quote:

Originally Posted by funkyab

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.

funkyab · 02-03-09, 02:50 PM

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.

parawizard · 02-05-09, 08:13 AM

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.

01-15-09, 07:41 AM	#63 \| Link
vsv Advanced Member Join Date: Dec 2000 Posts: 589	johnzo1995 waiting for pics from your HP screen with you on the front similar like this one below Last edited by vsv; 01-15-09 at 08:02 AM..

01-20-09, 11:22 AM	#73 \| Link
victor-eyd Quad Yeah! Join Date: Sep 2003 Location: Hayward, CA Posts: 1,920	I'm interested as well. I have an Eiki XGA lcd I'm waiting to gut once a light source is found Victor __________________ Big Screen/Small Space! My 13x12 Bedroom HT Think small, project big! Small theaters gallery

01-20-09, 06:21 PM	#75 \| Link	<a href='http://rev.avsforum.com/phpAdsNew/adclick.php?n=a591f81a' target='_blank'><img src='http://rev.avsforum.com/phpAdsNew/adview.php?what=zone:36&n=a591f81a' border='0' alt=''></a>
moovinfast Member Join Date: Mar 2007 Posts: 58	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.

01-20-09, 07:35 PM	#76 \| Link
klas Advanced Member Join Date: Aug 2005 Posts: 557	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. __________________ Zino!

01-26-09, 06:21 PM	#83 \| Link
klas Advanced Member Join Date: Aug 2005 Posts: 557	Why can't anyone make a descent LED 720p projector? __________________ Zino!

01-16-09, 01:37 PM	#64 \| Link
klover Advanced Member Join Date: Sep 2006 Location: Winnipeg, Canada Posts: 881	I'll be receiving a Dell M109S LED projector next week and post some thoughts/pictures.

01-18-09, 03:26 PM	#67 \| Link
parawizard Member Join Date: Jun 2008 Posts: 44	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.

01-20-09, 06:07 AM	#72 \| Link
moovinfast Member Join Date: Mar 2007 Posts: 58	Whats a good place to look for a high power LED in the states?

01-20-09, 12:09 PM	#74 \| Link
crazedmodder Member Join Date: Nov 2008 Posts: 31	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).

01-26-09, 10:31 PM	#84 \| Link
johnzo1995 Member Join Date: Dec 2004 Posts: 23	Here is one quick shot, I need to learn how to use my D60. p400hp.JPG

02-03-09, 01:44 AM	#87 \| Link
funkyab New Member Join Date: Feb 2009 Posts: 2	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.

02-03-09, 02:50 PM	#89 \| Link
funkyab New Member Join Date: Feb 2009 Posts: 2	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.

02-05-09, 08:13 AM	#90 \| Link	<a href='http://rev.avsforum.com/phpAdsNew/adclick.php?n=a591f81a' target='_blank'><img src='http://rev.avsforum.com/phpAdsNew/adview.php?what=zone:36&n=a591f81a' border='0' alt=''></a>
parawizard Member Join Date: Jun 2008 Posts: 44	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.