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Registered Member #190
Joined: Fri Feb 17 2006, 12:00AM
Location:
Posts: 1567
Is anyone familiar with this device? I have read basic information about it, but I am unsure if it ever really worked. Does anyone have any knowledge of it other than what I can read on wikipedia?
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
Ive seen these "kinda-sorta-prototypes", after 9/11 in the bay area. i was never a test subject, but from those who got flashed with it, they said normal movements in combat, and coordination were immediately difficult or impossible.
this was always described as a less than lethal type weapon for taking down people in crowds or passenger jets, with out shooting.
They seem more like a curiosity. I don't really know how effective they are, haven't seen or heard about them in a decade... I don't even think there really deployed to police here in the US.
Registered Member #2529
Joined: Thu Dec 10 2009, 02:43AM
Location:
Posts: 600
I think it's really just a dazzling bright light; it will hurt to look at, and it will close your pupils right down when you look in that direction so it will look 'dark' in that direction and you can't shoot or throw anything accurately at whoever is holding it because you can't see them.
Registered Member #2431
Joined: Tue Oct 13 2009, 09:47PM
Location: Chico, CA. USA
Posts: 5639
BigBad wrote ...
I think it's really just a dazzling bright light; it will hurt to look at, and it will close your pupils right down when you look in that direction so it will look 'dark' in that direction and you can't shoot or throw anything accurately at whoever is holding it because you can't see them.
supposedly, they cuase involuntary reflex and inner ear visual spatial problems, worse then just a bright strobe for example. But if they're so great, i sure don't see them being used much.
Registered Member #8120
Joined: Thu Nov 15 2012, 06:06PM
Location: Moscow, Russia
Posts: 94
Hm. From what i heard, a bright strobe light in 5-20Hz range disables the ability to perceive motion.
To try it yourself - fill a glass of water (the faster it fills, the better the effect), looking at it in normal light. You should have no problems turning the water off before it overfills.
Now try the same thing while blinking as fast as you can. You would see the scene quite clearly, and yet should have difficulty estimating the rate the glass is filling at, and will likely overfill or underfill it.
In combat situations that effect means that the target won't be able to predict movement, see or block hits, etc.
Registered Member #3943
Joined: Sun Jun 12 2011, 05:24PM
Location: The Shire, UK
Posts: 552
Similar to the one used here ? If so they are called "tactical strobe lights" and are quite effective when used in the right setting.
You can get a feel for it with a power LED and PWM, like Artlav said use a low frequency and a low duty cycle. They are great fun on a darkened flight of stairs!
If you need a circuit with jelly bean parts then this circuit will let you adjust both the duty cycle and frequency independently
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