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#1 |
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diyAudio Member
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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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#2 |
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diyAudio Member
Join Date: Mar 2007
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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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#3 |
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diyAudio Member
Join Date: Dec 2004
Location: california
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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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kb |
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#4 |
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diyAudio Member
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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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#5 |
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diyAudio Member
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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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#6 |
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diyAudio Member
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Please see the following attachment.
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#7 |
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diyAudio Member
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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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#8 |
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diyAudio Member
Join Date: Dec 2004
Location: california
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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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kb |
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#9 |
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diyAudio Member
Join Date: Mar 2007
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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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#10 |
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diyAudio Member
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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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