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ArcticMyst Security by Avery

Ever burned forearm with 445nm at 1000mw?

JLSE

JLSE

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There are some experiences with these 445's and their brutish power to say the least.
Im sure I have had many reds, greens, and low power BR's hit me before...

The ability for this colour to burn anything so readily is what makes the experience unique. Add the high output and some unique stories will follow.

The most that has happened for me prior, was small holes in my pant leg, and in some cases the bottom of a shirt. This usually occurred when taking beam shots a few feet away from the laser, and being preoccupied with the camera.

Since my first 445, I have completely steered clear of the beam at any distance. This would be the first laser I have not placed my hand in the path of the beam as well. My overall behavior completely changes as far as skin contact goes when working with these.

I treat eye safety the same with all 3b's, but class 4, you find yourself thinking a lot more in terms of overall safety.
 





millirad

millirad

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And then there is this little tidbit from wikipedia............

"Experimental observations of the effects of short-pulsed lasers on tattoos were first reported in the late 1960s.[6] In 1979 an argon laser was used for tattoo removal in 28 patients, with limited success. In 1978 a carbon dioxide was also used, but generally caused scarring after treatments[7] It was not until the late 1980s that Q-switched lasers became commercially practical. One of the first published articles describing laser tattoo removal was authored by the group at Massachusetts General Hospital in 1990."

"In 1978 a carbon dioxide was also used, but generally caused scarring after treatments"
barf.gif
 
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Fonduman

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i think this is exagerating a bit lol.
its fairly hard to get burnt by the beam. you have to be moving through it fairly slowly at the focal point to get burnt. and if its even focused at infintity you near enough need to be almost completely still to induce a burn.
 
JLSE

JLSE

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Fonduman said:
i think this is exagerating a bit lol.
its fairly hard to get burnt by the beam. you have to be moving through it fairly slowly at the focal point to get burnt. and if its even focused at infintity you near enough need to be almost completely still to induce a burn.
Click to expand...


lol, you obviously have not had a mishap with one of these... The pain is INSTANT

It will not leave a mark, but hurts like hell. Not something to be taken lightly...
A mishap can cause you to jump (as it did with me), there are a number of incidents that can follow depending what you are working around.
 
Fonduman

Fonduman

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wannaburn said:
lol, you obviously have not had a mishap with one of these... The pain is INSTANT

It will not leave a mark, but hurts like hell. Not something to be taken lightly...
A mishap can cause you to jump (as it did with me), there are a number of incidents that can follow depending what you are working around.
Click to expand...

if by mishap then you mean experimentaly burning my arm over and over again in different ways, then yes :D
 
JLSE

JLSE

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Believe me when I say, I have a high pain threshold.

Seeing as this may benefit 'the cause' 'for the greater good' lol, I will share my shameful experience.

This was my reaction... I had been working for 18+hrs straight, and this was approx 6:30am after a long night.. hence the slip up.
In the same night I finished my new drivers and was testing some different optics to try and improve the beam..

As you can see, I connected the power with my body to the right of the assembly, but had my arm, just above the elbow in the way and didn't realize it (coffee only goes so far).

Enjoy :undecided: I still get a good chuckle EVERYTIME I watch this..

 
Tech_Junkie

Tech_Junkie

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I'm impressed, you have changed. You can take a joke now. :gj:
Still nothing in my PayPal tho....
 
Toke

Toke

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Mohrenberg said:
try it on a mole or freckle. something dark.

My friend had a permanent scar on one of his tattoos.
Black tattoo and a red 240mW focused to burn.

It made a tiny little blister on his skin and the resulting scar made a tiny skin colored dot in the middle of his black tattoo

Actually, it's the guy in the black shirt in my avatar....face not shown..
Click to expand...
That would require aiming, and my goggles have not arrived yet.
 
Fonduman

Fonduman

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i tried it on a freckle. stings instantly. i think to cause actual skin damage you'd need to hold it on for 2 seconds+
 
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