What would it take to legally crowd scan at a nightclub?

[Stiffler]

Greetings PLers!

One of my clients, the owner of our local electronic dance music club, is hell bent on recreating the Pretty Lights laser set up at his club, crowd scanning and all. While I am in no position to sell, install, or even make recommendations on how to accomplish this, I am hoping that somebody here is. Regardless, I expect to get some colorful responses.

(I have already contacted Lightwave and am waiting for a call back)

Cheers!

[The_Doctor]

There are two very active recent threads discussing this, from a practical viewpoint. 'Legal' follows good practise so start with those.
http://www.photonlexicon.com/forums/...n-safety-lense
http://www.photonlexicon.com/forums/...you-can-afford

[buffo]

One of the easiest ways to legally audience-scan here in the US is to purchase a projector from X-laser with the "Polaris" audience-scanning add-on. It adds ~ 4 grand to the cost of the projector, but it's fully CDRH certified and they will also assist you in getting your variance modified to allow audience scanning.

Note that the methods explained in the threads above are NOT legal solutions, at least here in the US. In order to legally perform audience-scanning in the US, the projector must be certified for this application and your laser light show variance must also be issued with audience-scanning specifically allowed (which is ordinarily very difficult to get).

That being said, for the average hobbyist who can't afford a PASS system and has no intention of ever doing commercial shows, a combination of a safety scan lens and the proper power attenuation (as discussed in the above threads) is a good start if you want to make your shows safer for viewing in your own home. But when it comes to "legal", these solutions simply don't meet the standard.

Adam

[Pangolin]

Great reply Adam! And I see that it now takes a full 32 bits to represent your number of posts here on PL! You passed the realm of 31 bits 2,702 posts ago...

[buffo]

I see that it now takes a full 32 bits to represent your number of posts here on PL! You passed the realm of 31 bits 2,702 posts ago...

I really need do something about that persistent verbal diarrhea of mine, huh?

Adam

[Stiffler]

Thanks for the info guys!

I have been PMing with Adam, it looks like he is going to be able to help me out.