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look what i came across on the web when i was having alook around.

Police to experiment with blinding ?Dazer Laser?? - BlackListed News

i dont know if any of you guys have seen this before, but its news to me. what sort of laser do you think they are/would use and is it really safe and would have no side effects on your eyes or even cause epileptic seizures in susceptible individuals ???
 
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i'm pretty sure Wicked's 'photonic disruptor' was used for that, i saw it on futureweapons a few years ago, if i recall correctly it was 100mW, dangerous stuff, next time i happen to be out and about robbing banks ill wear some lasershades ;) :crackup:
 

Trevor

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i'm pretty sure Wicked's 'photonic disruptor' was used for that, i saw it on futureweapons a few years ago, if i recall correctly it was 100mW, dangerous stuff, next time i happen to be out and about robbing banks ill wear some lasershades ;) :crackup:
For some reason I don't think WL is actually selling any version of the PD for law enforcement, I think they just used the name. WL is never mentioned in the Future Weapons video, I think they just linked it on their website to try and sell the PD.

-Trevor
 

lasersbee

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next time i happen to be out and about robbing banks ill wear some lasershades ;) :crackup:
That's actually a really good point. If these become popular in law enforcement, it would be really easy to pick up some of the "red laser enhancement goggles" for <$10. It would make these completely useless.
 

qumefox

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That's actually a really good point. If these become popular in law enforcement, it would be really easy to pick up some of the "red laser enhancement goggles" for <$10. It would make these completely useless.
The goggles wouldn't stop the tazer that followed next.. or if the situation is bad enough, the bullets. Though I guess somebody could wear an aluminum foil wrapped kevlar vest too. But I think that might look a touch suspicious.
 
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Dregan

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That thing is specc'd to 500 mW. Seems a little excessive for dazing someone. That's permanent damage power.
 

qumefox

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That thing is specc'd to 500 mW. Seems a little excessive for dazing someone. That's permanent damage power.
What's the beam diameter and divergence though? 500mw is only a lot of light when it's in a small diameter beam. The larger the beam, the lower the power density is going to be.
 
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I calculated (roughly) that 500mW would need to have a 130 cm diameter beam to not do damage. That's 4.3 feet, and the beam did not look that wide in the demo video.
 

Cheech

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That one cop had regular shades on too dilating his pupils. Instruction Fail.
 

qumefox

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I calculated (roughly) that 500mW would need to have a 130 cm diameter beam to not do damage. That's 4.3 feet, and the beam did not look that wide in the demo video.
When I do the power density calculation,

http://www.newport.com/file_store/Photonics/Power_Meters_and_Detectors/Tutorials/tutorial2.pdf

I get a beam diameter of 225mm to get 500mw down to a class 3a rating of 2.5mw/cm2 (or .00025W/cm2, since that what the power density formula uses) which is generally considered eye safe.

That's 22.5cm or or 8.86"

A far cry from the 130cm you say. What formula did you use?
 




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