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garyfritz
Joined: 08 Apr 2006
Posts: 12088
Location: Fort Collins, CO
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| Posted: Sat May 22, 2010 4:00 am Post subject: |
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| cmjohnson wrote: | | The lamps are not modulated. It used Phlatlight high power LEDs (120 watts each nominal!) and they are simply used as separate continuous light sources for a 3-chip DLP engine. All light modulation is accomplished normally as far as DLP engines go. |
Huh. I guess that way you have zero rainbow issues. But you have registration issues. I'm surprised they didn't pulse the LEDs to run everything off one panel. I guess you'd probably lose about 2/3 of the brightness that way though.
| Quote: | | What we have here is a projector that could well last 50,000 maintenance-free hours. Particularly if the optical core is hermetically sealed so there are no dust and dirt issues to contend with. Lifespan-limited components are likely to be cooling fans and (some) electrolytic capacitors. The rest should last....as long as any electronics do, I guess. |
I'm still astonished that DLPs work at all, let alone have any reasonable lifespan. I mean, those are little flippers in there. Mechanical parts. Flopping their little brains out thousands of times per second. How can that work!?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sat May 22, 2010 1:23 pm Post subject: |
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| cmjohnson wrote: | I have seen VDC's LED-lamped 3-chip DLP projector in operation.
It's impressive. The black level is even good. (Not outstanding, but actually very good and quite watchable.) The color gamut is incredible. Its motion blur reduction mode WORKS LIKE MAGIC.
The lamps are not modulated. It used Phlatlight high power LEDs (120 watts each nominal!) and they are simply used as separate
continuous light sources for a 3-chip DLP engine. All light modulation is accomplished normally as far as DLP engines go.
What we have here is a projector that could well last 50,000 maintenance-free hours. Particularly if the optical core is hermetically sealed
so there are no dust and dirt issues to contend with. Lifespan-limited components are likely to be cooling fans and (some) electrolytic
capacitors. The rest should last....as long as any electronics do, I guess.
Would I REPLACE my Marquee with one? No. But if I was looking for another projector and had the budget, I think this product would
be a top contender for my money. Having no lamps to replace and no CRTs to burn out makes it a pretty attractive product, particularly when you add in the fact that the picture quality is genuinely excellent.
CJ |
Is this something new? There was no 3 chip led when I was there 3 months ago and no mention of it.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Sat May 22, 2010 1:27 pm Post subject: |
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| garyfritz wrote: | | cmjohnson wrote: | | The lamps are not modulated. It used Phlatlight high power LEDs (120 watts each nominal!) and they are simply used as separate continuous light sources for a 3-chip DLP engine. All light modulation is accomplished normally as far as DLP engines go. |
Huh. I guess that way you have zero rainbow issues. But you have registration issues. I'm surprised they didn't pulse the LEDs to run everything off one panel. I guess you'd probably lose about 2/3 of the brightness that way though.
| Quote: | | What we have here is a projector that could well last 50,000 maintenance-free hours. Particularly if the optical core is hermetically sealed so there are no dust and dirt issues to contend with. Lifespan-limited components are likely to be cooling fans and (some) electrolytic capacitors. The rest should last....as long as any electronics do, I guess. |
I'm still astonished that DLPs work at all, let alone have any reasonable lifespan. I mean, those are little flippers in there. Mechanical parts. Flopping their little brains out thousands of times per second. How can that work!? |
Actually the DMD's do fail and fail quite often.
And as far as 50,000 hour life............ now thats funny. They may rate the LED at that but surely not the projector. Now.... is it possible...... sure........is it likely.......... not likely....
Even the LED's burn out prematurely...... although not common.
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Sun May 23, 2010 4:59 pm Post subject: |
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While that seems like a great price, I have been told that Runco's markup is pretty good. My guess is that you could get one for not to far off of that price or maybe less.
| macgyver655 wrote: |
Actually the DMD's do fail and fail quite often.
And as far as 50,000 hour life............ now thats funny. They may rate the LED at that but surely not the projector. Now.... is it possible...... sure........is it likely.......... not likely....
Even the LED's burn out prematurely...... although not common. |
While I don't doubt that 50k hours is probably not going to happen, wouldn't VDC's pj last longer than the regular offerings out there? Doesn't the government have some minimum specs for something like this?
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon May 24, 2010 1:42 am Post subject: |
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| Spanky Ham wrote: |
wouldn't VDC's pj last longer than the regular offerings out there? Doesn't the government have some minimum specs for something like this? |
Although I could comment on this, I wont. You can talk to Scott about this. I dont want to reveal anything that was told to me that may not want to be known as product knowledge.
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Mon May 24, 2010 2:07 am Post subject: |
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I'm fairly certain that this Runco machine is made by VDC. It's just a "private label" version of the Marquee SSL6000.
Look at the back panel. Other than the trigger jacks, even the back panel layout is identical.
The Runco version has a much more attractive case. The VDC version is a simple black box, as industrial as it can be.
VDC also makes a mil-spec ruggedized version of this projector which is literally built in a NEMA enclosure.
Incidentalliy, I may have been way off base here. I wrote that the VDC LED projector was a 3 chip engine, but
I don't think that's true. It's a one chip engine with no color wheel. The LEDs are strobed at a high rate, synched
up with the DMD color channels.
CJ
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon May 24, 2010 2:18 am Post subject: |
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Let me just clarify this with hopes I'm not saying to much. VDC does NOT make LED projectors......
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Spanky Ham
Joined: 22 Mar 2006
Posts: 5643
Location: Comedy Central
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| Posted: Mon May 24, 2010 2:38 am Post subject: |
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Hmmm, Mac it seems like I have some good questions when I stop by VDC.
CJ,
It is a Delta OEM. 
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Mon May 24, 2010 4:08 pm Post subject: |
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I'm not surprised at that. They don't make the DLP engine. They DO integrate the DLP engine into their own product.
Look inside any DLP projector and the engine is made by one of a small number of companies such as TI or Delta. But what they do with
that engine can vary dramatically from one brand to another.
CJ
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon May 24, 2010 8:58 pm Post subject: |
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| cmjohnson wrote: | I'm not surprised at that. They don't make the DLP engine. They DO integrate the DLP engine into their own product.
Look inside any DLP projector and the engine is made by one of a small number of companies such as TI or Delta. But what they do with
that engine can vary dramatically from one brand to another.
CJ |
I think you should have a conversation with Scott. I'm not discussing this any further.
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cmjohnson
Joined: 03 Apr 2006
Posts: 5180
Location: Buried under G90s
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| Posted: Mon May 24, 2010 11:08 pm Post subject: |
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I've already talked to Scott, actually. 
CJ
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon May 24, 2010 11:16 pm Post subject: |
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| cmjohnson wrote: | I've already talked to Scott, actually.
CJ |
Then why did you say that VDC integrates the light engine into their product?
Its my understanding VDC does NOT have "their product".
Unless I was misinformed. Which I was very specific in my conversation.
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Mon May 24, 2010 11:17 pm Post subject: |
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| cmjohnson wrote: | I've already talked to Scott, actually.
CJ |
Just like the 3 chip LED?
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Curt Palme
CRT Tech
Joined: 08 Mar 2006
Posts: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Mon May 24, 2010 11:18 pm Post subject: |
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| cmjohnson wrote: |
The Runco version has a much more attractive case.
CJ |
You didn't finish the sentence:
The Runco version has a much more attractive case... which is worth $10,000. 
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Sparky015
Joined: 12 May 2009
Posts: 1185
Location: Cleveland / Akron, OH
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| Posted: Mon May 24, 2010 11:21 pm Post subject: |
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that's the most important piece and exactly why I'm upgrading my 8500 to a 9" machine to last me years to come. Me no afford an LED PJ.
_________________
~Paul
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Sparky015
Joined: 12 May 2009
Posts: 1185
Location: Cleveland / Akron, OH
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| Posted: Mon May 24, 2010 11:23 pm Post subject: |
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I was reading about one on the Home Theatre magazine. "second to none" picture, although they seemed to be comparing to lamp PJs, as they never mentioned CRT. $16K list price for a zoom lens and $17K for a fixed lens. I think it was the M-Vision Cine LED DLP.
_________________
~Paul
Last edited by Sparky015 on Mon May 24, 2010 11:33 pm; edited 1 time in total
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Sparky015
Joined: 12 May 2009
Posts: 1185
Location: Cleveland / Akron, OH
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| Posted: Mon May 24, 2010 11:25 pm Post subject: |
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by the way, it looks identical to the VDC PJ.
_________________
~Paul
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Sparky015
Joined: 12 May 2009
Posts: 1185
Location: Cleveland / Akron, OH
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macgyver655
Joined: 22 Aug 2007
Posts: 8508
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| Posted: Tue May 25, 2010 12:08 am Post subject: |
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Thats not even a LED unit. Its a bulb unit.
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Sparky015
Joined: 12 May 2009
Posts: 1185
Location: Cleveland / Akron, OH
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