audience scanning + projection zones brightness

Hi all,

is there a way to reduce "brightness" only in the lower half of a projection zone?
Ideally it should have a linear decrease of brightness!

It would be a good way to get full laser power above the audience and low laser power when scanning the audience.

greetings
Tom
 
Hello,
If someone can tell me...
Is a 40% attenuation safe enough for audience scanning?
I use a 2w laser.
Thanx
 
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