Well boys, I have finally ran my initial test on the projector. It looked pretty good except some movies were kinda dark. I guess I was expecting the 400w metal halide bulb to give me brighter images, yet then again, there was a tone of light leaking out so it was not an accurate representation of the power of the halide bulb. So here is my setup.
400w metal halide bulb.
3m 9700 OHP
15' ibm lcd panel
My question is how can i make it brighter? I found the point where the bulb shoud be where it is the brightest (where the old bulb's filament was). I have not tried splitting the fresnel (even though it looks as though there are 2) because i can't get them apart. In one corner it looks like it got melted (bought it used). It is only a tiny portion that got melted, is there a good way to try and remove them (seperate them fron eachother? Or is there a better way of increasing the brightness like buying another fresnell? If so, can someone point my in the right direction on which fresnel(s) should I get.
400w metal halide bulb.
3m 9700 OHP
15' ibm lcd panel
My question is how can i make it brighter? I found the point where the bulb shoud be where it is the brightest (where the old bulb's filament was). I have not tried splitting the fresnel (even though it looks as though there are 2) because i can't get them apart. In one corner it looks like it got melted (bought it used). It is only a tiny portion that got melted, is there a good way to try and remove them (seperate them fron eachother? Or is there a better way of increasing the brightness like buying another fresnell? If so, can someone point my in the right direction on which fresnel(s) should I get.
I'm not quite sure...what ever came with the ohp. It looks like 2 pieces of glass (stuck together) and then the glass stage. So altogether...3 things.
Condenser lens may enhance the overall brightness of a DIY projector. It is mounted right above the lightsource therefore it should be made of reinforced glass (don't know the english equivalent 😀) . It causes that more light reaches the surface of the fresnell lens. It looks like this:
Source: www.elektroda.pl
It should make the picture brighter 😉
An externally hosted image should be here but it was not working when we last tested it.
Source: www.elektroda.pl
It should make the picture brighter 😉
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