Led exposure unit?

[cvreeland]

The normal progression we see is quartz halogen with a loose piece of glass and a hunk of foam, moving up to a fluorescent unit with compression lid, to a single point MH and a vacuum. There are some in-between options, but that's it for the most part.

You forgot carbon arc.

Judging from the google search I just did, the whole world would like to forget carbon arc. 

[LDTRONIX]

I totally forgot about carbon arc.........That was a mess...

[Binkspot]

They seriously used carbon arc to expose screens? Used to use them for spotlights, lots of light but almost a full time job keeping then going.

[LDTRONIX]

I used it to erase eprom chips.

[Frog]

The normal progression we see is quartz halogen with a loose piece of glass and a hunk of foam, moving up to a fluorescent unit with compression lid, to a single point MH and a vacuum. There are some in-between options, but that's it for the most part.

You forgot carbon arc.

Judging from the google search I just did, the whole world would like to forget carbon arc. 

Oh yeah, but that's a different context of the progression i mentioned. Even I have been around long enough to have used a carbon arc on indirect carbon tissue stencil material, but I was specifically talking about the steps we generally see discussed on forums as newbies evolve.
And, as stated,  ldtronix  started his PR campaign on a forum known to attract newbies.

[Frog]

They seriously used carbon arc to expose screens? Used to use them for spotlights, lots of light but almost a full time job keeping then going.

Sometimes I forget how young some of you guys are (or conveniently forget how old I am)
Fact is, many of you guys have a lot on me!

[LDTRONIX]

Updated info.

search for
LED Exposure unit first impressions

[blue moon]

or see here:
http://www.theshirtboard.com/index.php/topic,7229.0.html