buffo
RE: color balance
This is true; Pangolin will allow you to balance the colors out no matter what power you have.Originally Posted by movinghead
It does this by turning down the power of the other lasers to match your weakest color. But remember that if you only have 500 mw of red, you won't be running your green at over a watt. (More like 200 mw)
My point was that you're better off starting with a *reasonable* color balance when you first select your lasers. Not perfect, but somewhere close. Pangolin can then be used to fine tune the balance once you assemble everything.
But if you are 6 to 8 times too low on red to begin with, you're going to loose a *lot* of green trying to get the color balance back. (The same thing applies when you're way low on blue.)
In other words, why set up a system such that most of the time one of the lasers (the green one) will be running at 1/4 it's rated power?(Unless you never plan on running it in color-balanced mode.?.)
OK - If you're happy with all that power being green, then no problem.The main use is beamshows, so power is important.
But if you want to do beamshows with more than just green being visible, then you're going to need a lot of red *and* a lot of blue to mix with it. Otherwise the green will overpower everything else.
As an example, I've worked with a friend's 1.7 watt solid state RGB projector for a few beam shows. It's got 1 watt of green (532 nm), 500 mw of 635 nm red, and 200 mw of 473 nm blue. The green beams are *awesome*.
However, the red is quite dim by comparison, and the blue is even harder to see.The teal looks OK, but again it's mostly green. The magenta is very pretty, but even so it's not anywhere near bright enough to compete with the green beam.
In order to get good color balance with this projector the green would need to be turned down to around 250 mw.What a waste!
As it is right now, it makes great green beams, but the other colors are pretty washed out by all the extra green.
Adam
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