MY IMAGE IS TOO FADED, Im using a 1000W Halogen, it should be fine, but Im assuming its from light leakage?
But no light leaks from the source to the screen, because I have the light covered in a case, tonight Ill post pics, but can anyone tell me other reasons?
I searched but all the reasons are from having a weak light source.
Anyone?
But no light leaks from the source to the screen, because I have the light covered in a case, tonight Ill post pics, but can anyone tell me other reasons?
I searched but all the reasons are from having a weak light source.
Anyone?
Without more information it could be virtually impossible to diagnose. I will say this; I am using a 600 watt halogen and the picture is very bright (almost easily viewable in daylight).
What lenses do you have setup? Are you using a lens to focus the light (if so what kind)? How far from the light is the lcd? And here is the biggie ; are your optics clean?
Hope this helps
Chris
What lenses do you have setup? Are you using a lens to focus the light (if so what kind)? How far from the light is the lcd? And here is the biggie ; are your optics clean?
Hope this helps
Chris
is the image better when you start the light, then gradually fades out? If so it could be heat related.
My Light is approx 29 cm away from my screen, the lenses are clean, but do to heat the Fresnel has slightly bent outwards, and the projection lens is clean as well. At a certain point I got it at a higher quality and I dont know how that happened but now I lost it. Im guessing something with thew ligt but it would be great if I knew what
Oh and should I switch to a 250 Halogen, cause the 1000 melted the computer fans that were cooling it, and is almost igniting my light filter box.
Or a 250 metal halide whcih is more expensive.
Does it really make a difference if its metal halide, I know its cooler, but is it much cooler?
Or a 250 metal halide whcih is more expensive.
Does it really make a difference if its metal halide, I know its cooler, but is it much cooler?
look at a 250watt halogen's specs and a metal halide's specs. The halogens will generally put out ~5,000 lumens, while the mh will put out nearly 20,000. Whatever energy isn't turned into light, must be turned into heat (not taking into account the heat that light carries). While being a lot easier to cool, you get the additional brightness that a mh bulb provides.
But the question is will a 250 mh compare to a 1000 watt halogen, Because Im using a 1000w Currently.
Will I need to use a computer fan if I have a MH, and I have a box covering the light source thats why my HALO was overheating because of the box and inside the box the temperature would reach plastic melting temps, will this be the case with my 250w mh?
Will I need to use a computer fan if I have a MH, and I have a box covering the light source thats why my HALO was overheating because of the box and inside the box the temperature would reach plastic melting temps, will this be the case with my 250w mh?
I had to use a fan when I tried a 11watt (thats right 11 watt) energy saver bulb (about 800-1000 lumens). After a while it started to get kinda hot in the box... So, yes, i think you will need a fan or two.
from what i've read you need a piece of UV glass between your light assy and Fresnel.
I didn't notice any mention of an air inlet grill. You need a fan but you also need somewhere for the air to go. Your best bet would be to use the fan to suck air into the case with an exhaust grill for the heated air to escape the case. Using the fan to suck in the air will also keep the fan cool as it's drawing cool air across its blades and hub from outside the case.
John
I didn't notice any mention of an air inlet grill. You need a fan but you also need somewhere for the air to go. Your best bet would be to use the fan to suck air into the case with an exhaust grill for the heated air to escape the case. Using the fan to suck in the air will also keep the fan cool as it's drawing cool air across its blades and hub from outside the case.
John
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