👍I've watched this three times now, and it's still the high water mark for UA-cam teardowns. Amazing tech, amazingly revealed. Optical path mockup was especially nice!
@superdau pretty much because they were cheap and would be interesting to take apart. They ended up basically free as I recovered the purchase cost from the scrap metal, and I still have one complete working left over.
9 років тому+10
After the anodizing is gone from the heatsink, doesn't that shiny metal reflect a huge part of the light back?
Excellent video as always. I find it hard to believe that with all the crazy things you have in your shop, you didn't have a standard computer power cable!!
Chris Tate The interesting thing about that is 16A is the Standard kettle cord in South Africa. The low current type meant for PC use doesn't fit in a kettle. Edit: I just checked and the plugs I'm thinking of are 10A. The 16A version has the flat pins horizontal instead of vertical. (clearly visible in the video as well, I just didn't look properly.)
@barjan82 I just increased the voltage 'til it started firing. Current is pretty low, & I ran one off 240V mains with a series resistor & diode. I'd expect igniter input voltage to vary significantly with make/model.
Wow what an awesome channel. I also collect NEC projectors and like to modify audio visual equipment.I bought with an old NEC MP2 plasma display panel years back and always buy NEC products. The MP2 had the most amazing image depth I have ever seen from a display, Shore new models have HDMI etc but in terms of a "Filmic quality" it was the best I have ever owned and closer to depth from a tube tv.I will be back asap with more posts, brilliant video and completely invigorating.
Man that thing is a monster. I've never seen a projector that big. Biggest one I saw before this was the one in the computer lab in my school and it was maybe one quarter the size of this beast.
Some of the internal fans aren't for cooling but to keep certain thicker atmospheres maintaining a continues flow (like smoke/moisture/ETC which is more common in professional use) it will also keep some of the fans blowing after shutdown to dehumidify the internals (for outside/high humidity environments)
The xenon power supply board is interesting. Am i right that there are no filter caps on the dc output? What topology is it? Seeing the bottom layer of the board i would say it's a forward converter.
No - the power required is orders of magnitude more than LEDs can provide. Another issue is projection optics requiresa small source, so you can't just throw more LEDs at it
Very cool video! Interesting to see how much stuff goes into such a projector (no wonder it costs $42k). Especially the image processing board, that were a lot of months of developing such a thing.
Sony DX-100 Projector after turning on pictures are clear. But after few minutes colour blots and collected in the center. What's the reason for this. Please reply me. Which part should I repair and replaced.
Hi Mike, what's the proper input voltage of the igniter module? I saw 128VDC set on your bench supply. I have a 1.6kW short arc lamp, constant current smps is ready, but need something to fire it up with. I found that these igniter modules are available on eBay, maybe it's worth to try. Lamp current in my case is around 60Amps, so i hope that the ingniter can handle that extra 10-15Amps.
Very cool. My friend invented DLP. Out of engineering -- burned out. He owns a sushi restaurant and a noodle shop now. On the wall of the noodle shop you can see the patent and the first silicon mounted on a plaque he was awarded by TI.
I work as a projectionist in a multiplex and I have taken apart for repair some of the more modern projectors, both Barco and NEC. The general layout is pretty much the same, only nowadays there are more fans and liquid cooling/Peltiers on the DMD blocks. Oh and massive security interfaces, everything is encrypted. I particulary like Barco, it is very modular and you can just pull it apart, major blocks are held in place with friction and captive screws.
@@111chicane Yes, DCP files (Digital Cinema Package) come public-key encrypted and are decrypted in a unit called a media block. In our cinema this unit sits in in a separate computer called screen server. The SDI signal from the media block to the projector is once again encrypted and then decrypted in the projector on the the same unit as the DLP chips. Both the DLP unit and the media block have tamper detection that erases the keys if you try to disassemble them. Or if you accidentally pull the wrong lever during regular maintenance...
Plus even if you are able to rig of a replacement LED light source that matches the light output and CRI of the arc lamp, the crap 1024x768 native resolution of the DLP chips kinda makes it pointless unless you don't care about picture quality and sharpness. Even though its rather low res the 4500 lumens is pretty damn impressive.
And now put it back together! Did you buy the projectors just for the fun of tearing them down (I can fully understand that!!) or is there something you wanted to do with them? (except for all the reuseable parts in them)
Scrap unit bought for the purpose of tearing it down this much. Even a new lamp costs more than a good used car. It served it's purpose as a projector, now it's serving another showing us how it all works with Mike's guidance.
Hello Mike. Awesome video. I have a question and was wondering if you could help? I have taken some nec projectors apart & placed everything back as much as possible. For some reason I cannot fathom, The picture elements are off track & un aligned. Its the Red green and blue geometry elements. I heard its something to do with the ribbon leads connecting the LCD panels? Has been put back exactly how it was. I read that there is software that can re align them via a pc, Have you ever seen this
Robert Drinkall There are a lot of different IEC connectors. It's probably driven by a 16A variant (C19/C20) which aren't used much in Europe (at least not in residential scenarios).
Blast from the past seeing that 20mb flash PCMCIA card. I remember when we used to use those to transfer data between SUN blade servers. Now any of those still running have PCMCIA USB 2.0 adapters in them and use thumb drives. How technology progresses, it's amazing.
Other nec models are very good bro. Depends on if you dont mind bulb replacement , if not then second hand is the way to go. newer models have led bulbs and a good one is Optoma ML500. The new models use DLP technology which is basically a spinning color wheel. Some work better than other and optima make a great projector for not much cash. Other than that older NEC models still give very good results. I had had many nec units bro. Hope this helps, lemme know what your lookin for bud.
Awesome teardown! What an impressive piece of optoelectronics! Love the explosion warnings and burning wood in front of the lamp. You must have been wearing welding goggles! So is the bulb not very dangerous when only hooked up to the igniter, and not the low voltage, high current source?
GREAT video! i own 3 units. 2 of these, and one SX6000 (5K lumen) do you still have the lenses? just out of curiosity, you willing to sell them? i need some more lenses for them as i use these units for building projection for corporate events.
I'm not sure that's quite true. a 5x5mm Cree XM-L diode can run at 7W with decent cooling. if you form a cylinder with those 6 wide and 7 around that's quite a bit of efficient LED light. certainly not orders of magnitude below, maybe even more light. and I don't think it really needs a point light either. I don't think focus is limited by the light size although I'm not quite clear on the reason for that.
I bought some junk off Mike at a boot sale once. Always thought it was military origin but now I know where it came from .. 12:27 ! It may end up as the stage of a frankenmicroscope I'm putting together.
Because the consumer DLP projector was built to a price. This one was built without cost as an object. Note that he said a new lamp for it would be 2000 pounds, there are decent cars you can get for less than that. Expensive piece of kit, and at the end of it's life, giant heavy door stop.
OMG you arched that lamp on your desk!! Do you know there is a very high explosion risk of those lamps both while warm AND cold! I repair sky trackers/space cannon "batman" style fixtures. Not something I'd try LOL!!
John Cusick the top digital rgp ports are for linking the projectors. only had a years warrenty manual-www.projectorcentral.com/pdf/projector_manual_823.pdf
good stuff. funny how many decades of research and development and money went into building that and its still cheaper to buy a new one when the lamp breaks.
Super interesting and very thorough video! Thank you! It's a bit funny and kinda weird how you just practically toss all the parts around. Like you got it because you appreciate it but then throw it around like garbage.
go on ebay and find a nice used 3 lcd conference room projector, they aren't that expensive and even if they need a new bulb their worth it. Same results in a much more compact package and it'd probably have more features (possibly HDMI), for most uses a big 3 lcd projector would be more than enough and they aren't too bad when bought used.
I wonder what the real difference is compared to a cheaper projector or TV. I can understand a FILM projector costing a lot of money, due to the high quality of film. But if you have a 1080i quality ceiling, there is only so good you can get. Of course the 3 chip style is a big improvement for a DLP projector so you don't get the rainbow blur, and the more expensive projector would have extra brightness. Just kind of seems like playing a cassette tape on $40,000 speakers. . .
+DarthHater100 in terms of engineering a film projector is a pretty simple bit of hardware compared to this ^^^ This particular projector (being from 2001) is only 1024x768 resolution - still that's not totally horrible when you're displaying natural images blown up big (obviously digital stuff might look pretty pixel-y) . I think the point is that it's bright enough for large spaces (4.5k lumens). Why is there a 1080i quality ceiling? If you've got $40k to spend on a projector (nowadays) no you can get some pretty nice crazy resolution (4k or more). Anyway look at the crazy engineering in that thing in the video.. not cheap to make
+Dr Tune I meant there is a 1080i ceiling on this particular projector. If that is incorrect and the ceiling is even lower, my apologies. . . I saw a film projector tear-down, and there's a lot that goes into those, and film is of such high quality that the sky is the limit with better engineering. . . I could understand better lenses, or brighter bulb, or engineering that stabilizes the gate, and smooths out the frame rate or something. I can only see this being crazier engineering in this bc microchips and dlp chips, but any projector will have those. I can see how you can get a much better picture on a projector nowadays that can do 4K. . . but I still fail to see the point of $40,000 for a 1024x768 projector. . . yes it will be very bright. . . very bright upscaled DVD quality. . . the build quality is impressive, but not $40k impressive. . . what did you mean about displaying natural images and digital stuff looking pixel-y?? Aren't all images, natural in origin or not converted to digital for a digital projector like this? I didn't understand that bit. . .
DarthHater100 I meant that film projectors are relatively simple compared to this because each frame of the film 'stores' the entire image as displayed, in full color, ready to go; you 'just' have to illuminate and project it onto a screen (and feed the film, and have a gate, and pick up the magnetic/optical audio track and.. and..) ..but at least a film projector starts off with a set of complete images on a convenient strip. This thing has to assemble the color images 'from scratch' using separate R/G/B paths. As for the pixel-y comment I just meant that most all natural images (when digitized) have relatively soft intensity and color gradients across the pixels, so pixellation at low resolution is less obvious to the eye (it's just a kind of gentle fuzziness, like how old-style TV looks nowadays when you're used to HD), but when you view a computer-generated image (like text or early graphics) there is often hard contrast changes between adjacent pixels and it's much more obvious to the eye (e.g. that early 80's videogames pixel-y look). You can display e.g. photographs of nature at surprisingly low resolutions and they still look ok. The more 'man made' the subject (e.g. a row of steel railings) the more there are regularly spaced high-contrast differences and the more the eye notices if it's displayed at low resolution (or you get Moiré effects for example, which are an interference pattern generated by sampling a regular pattern at too low a resolution)
+Dr Tune Okay, I see what you mean about the projection of film being simpler in a sense. Although it is a bit different, I know from having one of those fat CRT big screen rear projection TVs what you mean about natural images. For the most part a movie would look just fine, though soft compared to a flat panel, especially when close, but if you ran a laptop to it, it looked like crap. Your brain could forgive a movie image, especially from 10 ft away at the couch, but not so much with text, where you really need that pixel-perfect resolution. So I see what you mean about 'natural images' being less obvious to the eye. . .
i notice you're wearing a shirt sayin "no i wont fix your pc, ipod, etc....and im just saying...its a good idea for business...you have the ability...more than i can say for alot of people
+MadMax it stands for digital light processing if you want to see a close look at what it is look at applied science video, he really explains it really well.
You have the best teardowns I've seen on youtube. Very thorough and to the point. You are no doubt very knowledgeable.
We have one of thes in the board room at work.No wonder the room gets so hot when that thing is running 1Kw lamp wow.
👍I've watched this three times now, and it's still the high water mark for UA-cam teardowns. Amazing tech, amazingly revealed. Optical path mockup was especially nice!
I've seen almost all of your videos but this one takes the cake! Great explanation. I especially liked the part at the end. Thanks!
@superdau pretty much because they were cheap and would be interesting to take apart. They ended up basically free as I recovered the purchase cost from the scrap metal, and I still have one complete working left over.
After the anodizing is gone from the heatsink, doesn't that shiny metal reflect a huge part of the light back?
I loved your hackaday belgrade Ediphor presentation! What a piece of tech, well done!
@PhxSt0rmz yes - this is mentioned towards the end. Search "projector bulb" on youtube for what happens when large ones pop. .
the IR sensor on to top is to make sure the top cover is on before the lamp starts
Excellent video as always. I find it hard to believe that with all the crazy things you have in your shop, you didn't have a standard computer power cable!!
That wasn't a standard IEC. He said it was a 16A one, the standard iec kettle plugs are only 10a rated.
Chris Tate The interesting thing about that is 16A is the Standard kettle cord in South Africa. The low current type meant for PC use doesn't fit in a kettle.
Edit: I just checked and the plugs I'm thinking of are 10A.
The 16A version has the flat pins horizontal instead of vertical. (clearly visible in the video as well, I just didn't look properly.)
Holy crap! I can't believe how quickly the wood started smoking! It wasn't even that focused!
Great find, Mike!
@barjan82 I just increased the voltage 'til it started firing. Current is pretty low, & I ran one off 240V mains with a series resistor & diode. I'd expect igniter input voltage to vary significantly with make/model.
Wow what an awesome channel. I also collect NEC projectors and like to modify audio visual equipment.I bought with an old NEC MP2 plasma display panel years back and always buy NEC products. The MP2 had the most amazing image depth I have ever seen from a display, Shore new models have HDMI etc but in terms of a "Filmic quality" it was the best I have ever owned and closer to depth from a tube tv.I will be back asap with more posts, brilliant video and completely invigorating.
Man that thing is a monster. I've never seen a projector that big. Biggest one I saw before this was the one in the computer lab in my school and it was maybe one quarter the size of this beast.
Some of the internal fans aren't for cooling but to keep certain thicker atmospheres maintaining a continues flow (like smoke/moisture/ETC which is more common in professional use)
it will also keep some of the fans blowing after shutdown to dehumidify the internals (for outside/high humidity environments)
Good to see you posting videos Mike. Very interesting, keep it up.
The xenon power supply board is interesting. Am i right that there are no filter caps on the dc output? What topology is it? Seeing the bottom layer of the board i would say it's a forward converter.
I bet the ir thing on top is for distance measurement to check if the panel cover is on or not.
No - the power required is orders of magnitude more than LEDs can provide. Another issue is projection optics requiresa small source, so you can't just throw more LEDs at it
Very cool video! Interesting to see how much stuff goes into such a projector (no wonder it costs $42k). Especially the image processing board, that were a lot of months of developing such a thing.
I applaud your effort to make this video. Thank you.
@Gameboygenius Sorry can't find them - I think they've been trashed!
@pixuma You can see a DLP with an image in the pics I took of a pico projector at
electricstuff.co.uk/picoproj.html
Your videos never sease to amaze me
*cease
Put those lightbulbs in your car! Than wait for someone to shine his/hers high beams at you! :D
That will burn the anodised coating off the backs of their eyes ;-)
Would need to install the shutter as well since there's a warmup period. Alternator would need a heavy upgrade!
could these be adapted for super efficient Cree XML LED lighting instead?
that would presumably make the whole thing quite a bit more elegant
Absolutely amazing. Thanks a bunch for this, Mike!
Sony DX-100 Projector after turning on pictures are clear. But after few minutes colour blots and collected in the center. What's the reason for this. Please reply me. Which part should I repair and replaced.
Hi Mike, what's the proper input voltage of the igniter module? I saw 128VDC set on your bench supply. I have a 1.6kW short arc lamp, constant current smps is ready, but need something to fire it up with. I found that these igniter modules are available on eBay, maybe it's worth to try. Lamp current in my case is around 60Amps, so i hope that the ingniter can handle that extra 10-15Amps.
Great video, I was waiting the entire time to see that lamp running
Very cool. My friend invented DLP. Out of engineering -- burned out. He owns a sushi restaurant and a noodle shop now. On the wall of the noodle shop you can see the patent and the first silicon mounted on a plaque he was awarded by TI.
Larry Hornbeck?
Any UA-camr that slices himself mid video and doesn't even flinch get's my Sub
That hidden IRED... syncing stacked projectors, perhaps? Assuming the single-unit cover is removed when a stack is installed.
I work as a projectionist in a multiplex and I have taken apart for repair some of the more modern projectors, both Barco and NEC. The general layout is pretty much the same, only nowadays there are more fans and liquid cooling/Peltiers on the DMD blocks. Oh and massive security interfaces, everything is encrypted. I particulary like Barco, it is very modular and you can just pull it apart, major blocks are held in place with friction and captive screws.
What is encrypted? The video files come encrypted and the projector is decrypting them?
@@111chicane Yes, DCP files (Digital Cinema Package) come public-key encrypted and are decrypted in a unit called a media block. In our cinema this unit sits in in a separate computer called screen server. The SDI signal from the media block to the projector is once again encrypted and then decrypted in the projector on the the same unit as the DLP chips. Both the DLP unit and the media block have tamper detection that erases the keys if you try to disassemble them. Or if you accidentally pull the wrong lever during regular maintenance...
How hard would it be to retrofit one of those 100w SMD LEDs into this thing? they could easily extend the life of this thing for pretty cheap
the terrible CRI may be an issue, no?
Plus even if you are able to rig of a replacement LED light source that matches the light output and CRI of the arc lamp, the crap 1024x768 native resolution of the DLP chips kinda makes it pointless unless you don't care about picture quality and sharpness. Even though its rather low res the 4500 lumens is pretty damn impressive.
And now put it back together!
Did you buy the projectors just for the fun of tearing them down (I can fully understand that!!) or is there something you wanted to do with them? (except for all the reuseable parts in them)
Interesting video, I still can't believe you did not have a IEC cable, don't you have a kettle or computer in your house Mike?
Scrap unit bought for the purpose of tearing it down this much. Even a new lamp costs more than a good used car. It served it's purpose as a projector, now it's serving another showing us how it all works with Mike's guidance.
Hello Mike. Awesome video. I have a question and was wondering if you could help? I have taken some nec projectors apart & placed everything back as much as possible. For some reason I cannot fathom, The picture elements are off track & un aligned. Its the Red green and blue geometry elements. I heard its something to do with the ribbon leads connecting the LCD panels? Has been put back exactly how it was. I read that there is software that can re align them via a pc, Have you ever seen this
Mike, would you possibly consider making some form of tutorial series? It's my firm belief you'd make a good tutor.
I really enjoyed that. Excellent. I'll watch your other videos now. Thanks.
Hey Mike, can you actually make use of the huge lenses?
Robert Drinkall There are a lot of different IEC connectors. It's probably driven by a 16A variant (C19/C20) which aren't used much in Europe (at least not in residential scenarios).
Wow! How did I miss this one? Do you think this projector was used to show the trailers and live events?
did you ever find out what was on the PCMCIA card or did it get trashed
do the lamps come with these rediculous rom chips that save the hours on them ?
Blast from the past seeing that 20mb flash PCMCIA card. I remember when we used to use those to transfer data between SUN blade servers. Now any of those still running have PCMCIA USB 2.0 adapters in them and use thumb drives. How technology progresses, it's amazing.
I love when he does the fast forward thing!
Also, i've always wondered what a DLP chip looks like if you actually feed it a signal while you've got it out
You must have an awesome scrap parts bin
Other nec models are very good bro. Depends on if you dont mind bulb replacement , if not then second hand is the way to go. newer models have led bulbs and a good one is Optoma ML500. The new models use DLP technology which is basically a spinning color wheel. Some work better than other and optima make a great projector for not much cash. Other than that older NEC models still give very good results. I had had many nec units bro. Hope this helps, lemme know what your lookin for bud.
Do u still have that bulb i would like that
do you stilll have thos prisms?
Awesome teardown! What an impressive piece of optoelectronics! Love the explosion warnings and burning wood in front of the lamp. You must have been wearing welding goggles! So is the bulb not very dangerous when only hooked up to the igniter, and not the low voltage, high current source?
am happy to see these i want to learn who to repair projector if possible
Excellent documentary, guy doing presentation need to relax, he needs a few beers before the video.
IR TX RX could be an interlock?
GREAT video! i own 3 units. 2 of these, and one SX6000 (5K lumen)
do you still have the lenses? just out of curiosity, you willing to sell them?
i need some more lenses for them as i use these units for building projection for corporate events.
Sexy optics in that old behemoth.
And what about an 50, maybe 100W power led?
Hey, what Panasonic camera do you use?
I tend to prefer LCD as it tends to have brighter colours. DLP has way better contrast though
You should keep that lamp and make a crumpet toaster :D
How did I miss this one! Awesome :)
the IR sensor is a tamper-safe protection device to prevent people (like you) from powering on the projector while it’s open
Why does modern day dlp projectors colour flicker after 1 year and that one clearly which is like 10 year is still great but just needs a new lamp
I want that prism. Will you sell it?
Fantastic video! I learned a lot. Thank you!
i like nec equipment...it's very nicely made !
I'm not sure that's quite true. a 5x5mm Cree XM-L diode can run at 7W with decent cooling. if you form a cylinder with those 6 wide and 7 around that's quite a bit of efficient LED light. certainly not orders of magnitude below, maybe even more light.
and I don't think it really needs a point light either. I don't think focus is limited by the light size although I'm not quite clear on the reason for that.
where did you get it ?
I bought some junk off Mike at a boot sale once. Always thought it was military origin but now I know where it came from .. 12:27 !
It may end up as the stage of a frankenmicroscope I'm putting together.
$50?!? What a steal! I'd give an arm and a leg to get 4 of those things!
I want that freaking shirt!!!!!!!!
where did you get it??
Do you have the ignitor leftover? i need one :-)
If you still have those DLP arrays, you could send one to Jeri for her electron microscope!
Because the consumer DLP projector was built to a price. This one was built without cost as an object. Note that he said a new lamp for it would be 2000 pounds, there are decent cars you can get for less than that. Expensive piece of kit, and at the end of it's life, giant heavy door stop.
OMG you arched that lamp on your desk!!
Do you know there is a very high explosion risk of those lamps both while warm AND cold!
I repair sky trackers/space cannon "batman" style fixtures. Not something I'd try LOL!!
24:14 woah!!!! thanks for doing that!
oh i love that shirt :)
Had to get a friend to read it to me but i love it.
That is some epic optics
Resolution?
Xga 1024x768 from projectorcentral.com
Paul Addy
wow is that all.... blimy
John Cusick
Video Modes:
1035i, 1080i, 720p
480p
Data Modes:
MAX 1280x1024
www.projectorcentral.com/NEC-Nighthawk_XT5000.htm
John Cusick
the top digital rgp ports are for linking the projectors. only had a years warrenty
manual-www.projectorcentral.com/pdf/projector_manual_823.pdf
good stuff. funny how many decades of research and development and money went into building that and its still cheaper to buy a new one when the lamp breaks.
Learned something today, cool video :)
Sehr gutes Video. Daumen nach oben!
Super interesting and very thorough video! Thank you! It's a bit funny and kinda weird how you just practically toss all the parts around. Like you got it because you appreciate it but then throw it around like garbage.
go on ebay and find a nice used 3 lcd conference room projector, they aren't that expensive and even if they need a new bulb their worth it. Same results in a much more compact package and it'd probably have more features (possibly HDMI), for most uses a big 3 lcd projector would be more than enough and they aren't too bad when bought used.
Разборка на отъебись! Поржал с этого стиля! Красивый модуль на 5.50! Спасибо за интересный видос!👍🤝🍻🍻
This projector is a monster !
but NEC is definitelly my brand , solid , durable
thats no fair your dlp chip lasted for many years and mine gave out after like 2 years
@williefleete Nothing exciting - I think just a couple of backdrop images from an AV rental company
You know you've done a good job when you have a bin of screws left over. :D
Lost it when I saw your stick man
Some parts of the projector may be radioactive.
9:40 wtf happened? Seen this years ago but Christ. You need a hug and I'm willing to give
I wonder what the real difference is compared to a cheaper projector or TV. I can understand a FILM projector costing a lot of money, due to the high quality of film. But if you have a 1080i quality ceiling, there is only so good you can get. Of course the 3 chip style is a big improvement for a DLP projector so you don't get the rainbow blur, and the more expensive projector would have extra brightness. Just kind of seems like playing a cassette tape on $40,000 speakers. . .
+DarthHater100 in terms of engineering a film projector is a pretty simple bit of hardware compared to this ^^^ This particular projector (being from 2001) is only 1024x768 resolution - still that's not totally horrible when you're displaying natural images blown up big (obviously digital stuff might look pretty pixel-y) . I think the point is that it's bright enough for large spaces (4.5k lumens). Why is there a 1080i quality ceiling? If you've got $40k to spend on a projector (nowadays) no you can get some pretty nice crazy resolution (4k or more). Anyway look at the crazy engineering in that thing in the video.. not cheap to make
+Dr Tune I meant there is a 1080i ceiling on this particular projector. If that is incorrect and the ceiling is even lower, my apologies. . . I saw a film projector tear-down, and there's a lot that goes into those, and film is of such high quality that the sky is the limit with better engineering. . . I could understand better lenses, or brighter bulb, or engineering that stabilizes the gate, and smooths out the frame rate or something. I can only see this being crazier engineering in this bc microchips and dlp chips, but any projector will have those. I can see how you can get a much better picture on a projector nowadays that can do 4K. . . but I still fail to see the point of $40,000 for a 1024x768 projector. . . yes it will be very bright. . . very bright upscaled DVD quality. . . the build quality is impressive, but not $40k impressive. . . what did you mean about displaying natural images and digital stuff looking pixel-y?? Aren't all images, natural in origin or not converted to digital for a digital projector like this? I didn't understand that bit. . .
DarthHater100 I meant that film projectors are relatively simple compared to this because each frame of the film 'stores' the entire image as displayed, in full color, ready to go; you 'just' have to illuminate and project it onto a screen (and feed the film, and have a gate, and pick up the magnetic/optical audio track and.. and..) ..but at least a film projector starts off with a set of complete images on a convenient strip. This thing has to assemble the color images 'from scratch' using separate R/G/B paths.
As for the pixel-y comment I just meant that most all natural images (when digitized) have relatively soft intensity and color gradients across the pixels, so pixellation at low resolution is less obvious to the eye (it's just a kind of gentle fuzziness, like how old-style TV looks nowadays when you're used to HD), but when you view a computer-generated image (like text or early graphics) there is often hard contrast changes between adjacent pixels and it's much more obvious to the eye (e.g. that early 80's videogames pixel-y look). You can display e.g. photographs of nature at surprisingly low resolutions and they still look ok. The more 'man made' the subject (e.g. a row of steel railings) the more there are regularly spaced high-contrast differences and the more the eye notices if it's displayed at low resolution (or you get Moiré effects for example, which are an interference pattern generated by sampling a regular pattern at too low a resolution)
+Dr Tune Okay, I see what you mean about the projection of film being simpler in a sense.
Although it is a bit different, I know from having one of those fat CRT big screen rear projection TVs what you mean about natural images. For the most part a movie would look just fine, though soft compared to a flat panel, especially when close, but if you ran a laptop to it, it looked like crap. Your brain could forgive a movie image, especially from 10 ft away at the couch, but not so much with text, where you really need that pixel-perfect resolution. So I see what you mean about 'natural images' being less obvious to the eye. . .
+DarthHater100 Exactly that :-)
Maybe you still keep those nice DMD chips?
+Zygimantas Laurutis 1024x768, not that nice by modern standards
i notice you're wearing a shirt sayin "no i wont fix your pc, ipod, etc....and im just saying...its a good idea for business...you have the ability...more than i can say for alot of people
Love Huge Projectors :) Play With Them All The Time
whats a DLP?
+MadMax it stands for digital light processing if you want to see a close look at what it is look at applied science video, he really explains it really well.