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Old 23rd June 2009, 02:16 PM   #1
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Red face LED+FLYEYES+COLLIMATOR=LED projector

Hi, All

I have been in working on led PROJECTORS for years. Now I found the best way to make an LED projector.
1. a true LED projector with only 19 watts CREE XLAMP LEDs
2. the efficiency is more than 85%,and the uniform is more than 80%
3. The brightness is better than ALLY PTV01, MUCH MUCH BETTER. But to speak truth, the brightness is only 150 ANSI lumens;
4. The image is good. You can see the following pics.
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File Type: jpg collimator for 19 led lamps2.jpg (56.1 KB, 681 views)
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Old 23rd June 2009, 08:46 PM   #2
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can you post some projected images and pictures of the internal of the projector that uses these LED's?

I'd like to see the uniformity especially

Thanks!
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Old 24th June 2009, 11:50 PM   #3
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What are the mechanil dimentions
length , whidth?Is it RGB module or white one.Emiting angle of each led.What kind of metal is the PCB , aluminun or copper.Thank you.
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Old 26th June 2009, 03:18 PM   #4
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Default About the collimator

The width=69mm, the length=79mm;
I use the cool white LED from Cree, Q4, and Bin=WA,WK, and WB&WM is also good.

the emitting angle of Q4 from Cree, is 90 degrees. My collimator can collect 85% of the lamps. The efficiency is much much higher than other so-called engine.

I use the Heat-pipe cooling system, and the Aluminum MCPCB.
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File Type: jpg diyshow.jpg (22.7 KB, 586 views)
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Old 26th June 2009, 03:18 PM   #5
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Default the image of my led

the uniformity is more than 85%
1. the middle, lux=86
2. the corner, lux=64
3. the ansi lumens, more than 140 lumens
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Old 26th June 2009, 03:18 PM   #6
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Default More images

Please see the following attachment.
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Old 26th June 2009, 03:18 PM   #7
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Default To design the engine

The following attachment is my design paper.
You can find that in this engine,
I have two flyeyes lens, and one collimator, and one object lens.
They work together.
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File Type: jpg 2.jpg (37.1 KB, 550 views)
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Old 27th June 2009, 12:23 AM   #8
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Thanks,for your reply, very profetional .The 79mm lenght ,does it include the heat sink + led module +all the lenses?The reason for asking is , can that module be fited inside projector.My two projectors are more than 79mm long,but i'm not sure ,whether you mean 79mm total(all components).Is it this module for lcd or dlp?
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Old 27th June 2009, 05:11 PM   #9
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that looks really nice indeed! It would be great if you could post some pictures of the actual projector, the insides of it as well as some images

The fly eye lens seems quite interesting indeed. Also, using Q5 LEDs could increase brightness as well

Thanks for the posts!
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Old 29th June 2009, 02:34 AM   #10
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hi
Look, this is what the engine is.

The dimensions of the engine is: 20CM*20CM*10CM(W*L*H).
The LCD panel is there, I use the 5" 800*600 LCD panel.

yes, I can use the Q5, but, for Q5, the color temp bin= wa/wk can not be found. so, Q4 is better, though it is 9% less brighter.

check it.
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File Type: jpg dust-free engine based on led-2.jpg (27.3 KB, 541 views)
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