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From: George's ProSound Company on 16 Jul 2008 18:16
its not sound , the light show at a rave has blinded several attendees
instead of lights/blind this report could have been sound/daf
be a responsible provider and protect your audience, even when they, or the
promoters don't know any better



updated 11:29 a.m. ET, Mon., July. 14, 2008
MOSCOW - Dozens of partygoers at an outdoor rave near Moscow last week have
lost partial vision after a laser light show
burned their retinas, Russian health officials said on Monday.

Moscow city health department officials confirmed 12 cases of
laser-blindness at the Central Ophthalmological Clinic, and
daily newspaper Kommersant said another 17 were registered at City Hospital
32 in the center of the capital.

Attendees at the July 5 Aquamarine Open Air Festival in Kirzhach, 50 miles
northeast of Moscow, began seeking medical help
days after the show, complaining of eye and vision problems, health
officials told Reuters.


"They all have retinal burns, scarring is visible on them. Loss of vision in
individual cases is as high as 80 percent, and
regaining it is already impossible," Kommersant quoted a treating
ophthalmologist as saying.

Attendees said heavy rains forced organizers to erect massive tents for the
all-night dance party, and lasers that normally
illuminate upwards into the sky were instead partially refracted into the
ravers' eyes.

"I immediately had a spot like when you stare into the sun," rave-attendee
Dmitry told Kommersant.

"After three days I decided to go to the hospital. They examined me, asked
if I had been at Open Air, and then put me
straight in the hospital. I didn't even get to go home and get my stuff," he
said.

Cosmic Connection, promoters of the Aquamarine rave, were unreachable and
did not list contact numbers on their Web site.

Industry Web site www.laserfx.com said focused laser light can cause eye
damage almost instantly.

The owner of a Moscow laser rental company told Reuters the accidental
blindings were due to "illiteracy on the part of
technicians."

"It was partly the rain, but also partly the size of the laser. Somebody set
up an extremely powerful laser for such a
small space," said Valentin Vasiliev, who said his company did not provide
the Aquamarine lasers.


From: Tim Perry on 17 Jul 2008 00:04
> The owner of a Moscow laser rental company told Reuters the accidental
> blindings were due to "illiteracy on the part of
> technicians."
>
> "It was partly the rain, but also partly the size of the laser. Somebody
set
> up an extremely powerful laser for such a
> small space," said Valentin Vasiliev, who said his company did not provide
> the Aquamarine lasers.
>
>


Another case of shooting ducks with anti-aircraft cannon simply because that
was what was available.



From: Joe Kotroczo on 17 Jul 2008 04:49
On 17/07/08 0:16, in article 66da4$487e6d7a$471fb991$30435(a)ALLTEL.NET,
"George's ProSound Company" <bmoas(a)yahoo.com> wrote:

> its not sound , the light show at a rave has blinded several attendees
> instead of lights/blind this report could have been sound/daf
> be a responsible provider and protect your audience, even when they, or the
> promoters don't know any better

The difference is that unlike lights or sound you can't turn down lasers.
They always run at full power. So given the change in conditions (tents
being set up) the right decision would have been to kill the lasers.

You can almost never make a promoter understand that, which is why so few
providers offer lasers at all. Not worth the hassle.


--
Joe Kotroczo kotroczo(a)mac.com

From: Gareth Magennis on 17 Jul 2008 09:06

"George's ProSound Company" <bmoas(a)yahoo.com> wrote in message
news:66da4$487e6d7a$471fb991$30435(a)ALLTEL.NET...
> its not sound , the light show at a rave has blinded several attendees
> instead of lights/blind this report could have been sound/daf
> be a responsible provider and protect your audience, even when they, or
> the promoters don't know any better
>
>
>
> updated 11:29 a.m. ET, Mon., July. 14, 2008
> MOSCOW - Dozens of partygoers at an outdoor rave near Moscow last week
> have lost partial vision after a laser light show
> burned their retinas, Russian health officials said on Monday.
>
> Moscow city health department officials confirmed 12 cases of
> laser-blindness at the Central Ophthalmological Clinic, and
> daily newspaper Kommersant said another 17 were registered at City
> Hospital 32 in the center of the capital.
>
> Attendees at the July 5 Aquamarine Open Air Festival in Kirzhach, 50 miles
> northeast of Moscow, began seeking medical help
> days after the show, complaining of eye and vision problems, health
> officials told Reuters.
>
>
> "They all have retinal burns, scarring is visible on them. Loss of vision
> in individual cases is as high as 80 percent, and
> regaining it is already impossible," Kommersant quoted a treating
> ophthalmologist as saying.
>
> Attendees said heavy rains forced organizers to erect massive tents for
> the all-night dance party, and lasers that normally
> illuminate upwards into the sky were instead partially refracted into the
> ravers' eyes.
>
> "I immediately had a spot like when you stare into the sun," rave-attendee
> Dmitry told Kommersant.
>
> "After three days I decided to go to the hospital. They examined me, asked
> if I had been at Open Air, and then put me
> straight in the hospital. I didn't even get to go home and get my stuff,"
> he said.
>
> Cosmic Connection, promoters of the Aquamarine rave, were unreachable and
> did not list contact numbers on their Web site.
>
> Industry Web site www.laserfx.com said focused laser light can cause eye
> damage almost instantly.
>
> The owner of a Moscow laser rental company told Reuters the accidental
> blindings were due to "illiteracy on the part of
> technicians."
>
> "It was partly the rain, but also partly the size of the laser. Somebody
> set up an extremely powerful laser for such a
> small space," said Valentin Vasiliev, who said his company did not provide
> the Aquamarine lasers.
>
>



Hmm, the military is developing battlefield lasers that are permitted under
the Geneva convention, where any laser weapon specifically designed to blind
or maim is banned. They reckon they will soon have a 100KW (!!) device
onboard aircraft.
Since most action these days seems to involve much collateral damage, expect
swathes of (accidentally of course) blinded/burned civilians by reflected
lasers any time soon.

Perhaps they should be practicing on Robert Mugabe.



Gareth.


From: Eeyore on 17 Jul 2008 10:47


Gareth Magennis wrote:

> Perhaps they should be practicing on Robert Mugabe.

I can't think of a better target personally.

Graham

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