Well, slowly but surely, I'm getting the components together and I should be able to start my own plog soon :-)

One thought I keep having, and I haven't had much luck searching the other discussions to see if it was ever brought up, is bouncing the light off of a front surface mirror and then onto the fresnel/lcd to eliminate the need for a UV filter. Like this:

mirror.........light
:
fresnel
:
lcd
:
fresnel
:
lens

Does anyone know if this would work or would the UV bounce off the mirror and hit the lcd panel, as well?

Most definately not.

UV light is exactly the same as all other light, in the fact that it is only different wavelengths that produce different colours.

In a vacuum, a bit below 390NM will be UltraViolet, and a bit above 780NM in the spectrum will be InfraRed. IR and UV will always be there (as long as the light source produces them) until we filter them out.

well, there ya go! Guess I should have paid more attention in science class

Thanks!

Heheh, yeah...

...I think we all could have paid a little bit more attention in Science class

No probs friend...

Howdy.... Just a quick question.... Does UV have to be filtered out, and if not, what difference is noticed?

Tanx.

UV will deteriorate the pixels, they will become lighter and loose there color, I think more in the blue pixels then the red and green but all over time, it should definitly be filtered out (especially since the uv filter sheets are under $10), there are some MH lamps that have UV filters built into the outer caseing but sometimes the lamps break, so basically if its an expensive LCD that you care if it dies, you should filter it out

The Lexan XL10 has the UV filter incorporated into it.

Great info guys... thanks.