http://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/ Switched Comments for Ravers Blinded By Laser Light Show Outside Moscow http://www.switched.com/media/feedlogo.gif http://www.switched.com en-us Copyright 2012 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/http://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/Jul 16th 2008 11:42AMhttp://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/http://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/Jul 16th 2008 5:38PMhttp://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/http://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/Jul 16th 2008 11:01AMhttp://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/http://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/
Pulsed lasers emit their light in short, powerful bursts. They are fine for sky or overhead use, but NEVER should be used for audience scanning. Whoever decided to re-aim the lasers from the sky as planned, into the audience, was completely and dangerously wrong.

Audience scanning is safe and legal when done appropriately. Note that you cannot extrapolate from a laser pen held close to a person, to a laser show where the laser is many meters away and is constantly in motion.

A Class 4 (most powerful) laser's light is supposed to be Class 1 (safe for exposure) by the time it reaches the closest audience member. Some shows may be over this limit, but not by the orders of magnitude which created the Moscow injuries. That takes exceptional ineptitude such as using a pulsed laser on a crowd.

-- Patrick Murphy, International Laser Display Assn.
]]>Jul 16th 2008 9:12AMhttp://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/http://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/Jul 16th 2008 11:02AMhttp://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/http://www.switched.com/2008/07/15/ravers-blinded-by-laser-light-show-outside-moscow/Jul 16th 2008 11:52AM