Just a FIY for everyone.
Here is an LED source for white LED's.... I use this place for all my LED needs in comp case modding, great place and ships fast... Just found the DIY projector stuff, so researching it a bit... Thought you all would like this though..
http://www.eled.com/product.asp?catalog_name=LEDs&category_name=&product_id=E7114QWC-D
Part No.: E7114QWC-D
Emitting Color: White
Wavelength (nm): None
Lens Type: Water Clear
Iv(mcd): 3200
Typical IF: 20 (mA)
Viewing Angle (2è1/2): 20
Now food for thought... At 3200 mcd, how many LED's would one need to produce 1500 to 2000 lumens?
Here is an LED source for white LED's.... I use this place for all my LED needs in comp case modding, great place and ships fast... Just found the DIY projector stuff, so researching it a bit... Thought you all would like this though..
http://www.eled.com/product.asp?catalog_name=LEDs&category_name=&product_id=E7114QWC-D
Part No.: E7114QWC-D
Emitting Color: White
Wavelength (nm): None
Lens Type: Water Clear
Iv(mcd): 3200
Typical IF: 20 (mA)
Viewing Angle (2è1/2): 20
Now food for thought... At 3200 mcd, how many LED's would one need to produce 1500 to 2000 lumens?
Answer to the question....
I've been researching alot of LED's and happen to have a OpenOffice Calc sheet set up just for LED lumen calculations. 🙂
Plugging in your numbers, and giving the LED the benefit of the doubt on the beam width as 20 degrees (as opposed to 10 deg which I think it might be... beam width is diff. than viewing angle... higher angle means more total light for same number, so higher is good)... I got the following:
E7114QWC-D
3200 mcd
20 beam width
0.31 lumens
$1 cost per bulb
$3.27 cost per lumen
$3273.78 for 1000 lumen light source
There's better solutions out there, although those are the cheapest high-power LED's I've seen for sale on an individual basis. Check out the LED thread if you're interested in this stuff.
I've been researching alot of LED's and happen to have a OpenOffice Calc sheet set up just for LED lumen calculations. 🙂
Plugging in your numbers, and giving the LED the benefit of the doubt on the beam width as 20 degrees (as opposed to 10 deg which I think it might be... beam width is diff. than viewing angle... higher angle means more total light for same number, so higher is good)... I got the following:
E7114QWC-D
3200 mcd
20 beam width
0.31 lumens
$1 cost per bulb
$3.27 cost per lumen
$3273.78 for 1000 lumen light source
There's better solutions out there, although those are the cheapest high-power LED's I've seen for sale on an individual basis. Check out the LED thread if you're interested in this stuff.
LOL... well that just blew that out of the water... Thanks for the info... Seems LED's arn't even anywhere near considerable, even at that low cost..
Think I'll just go with an overhead retrofitted with a 1000watt MH pigybacked with a standard 14 or 15" computer LCD screen hacked and gutted so I can get 1024x768 + clean computer display... I don't wish to go the svideo route, and seems like this idea is all around the cheapest...
Think I'll just go with an overhead retrofitted with a 1000watt MH pigybacked with a standard 14 or 15" computer LCD screen hacked and gutted so I can get 1024x768 + clean computer display... I don't wish to go the svideo route, and seems like this idea is all around the cheapest...
Don't give up yet on the LED's... there's some good hope with these Luxeon Star-O's and emitters that they make. You can currently get a 250 lumen source for around $250... that's the best yet. 🙂 If you had volume pricing, you could get that same 250 lumen source for $120, so that means 1000 lumens of LED light would be $480.... I think if it worked I would be willing to spend for a 500 lumen source. 🙂
--Clint
--Clint
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