Laser Beam in a Cleanroom?

[sugeek]

I believe the shot of pat in Nat Geo used the upside-down air trick... Another choice is to use the spray that is used to test smoke detectors, daguin was using that at socalem to show off the HeNe beams.

[White-Light]

The Pea Soup Phantom is suppsoed to be the cleanest hazer:

http://www.smokemachines.net/buy-pro-hazer.shtml

You could probably hire one.

I would have thought cigarette smoke would be a serious contaimination of the clean room as your introducing smoke particles in the form of soot. Same with water based hazers albeit to a lesser extent as you're essentially burning sugar.

[White-Light]

I just tried this with a Sunbeam ultrasonic humidifier - seems like it did a pretty good job lighting up my projectors output. You also gain some control over direction, as mine allows you to pivot the output.

Good luck with your project.

Greg

Only just read the post, that sounds like a great idea from Greg.

No fallout other than water, furthermore if purified water was used, then you could keep the room really clean as there would be no mineral deposits.