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Burning my finger on purpose with a 3W 445nm laser.

deltawars

deltawars

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I wanted to see if I could fell the warmness of the laser, so I turned the laser on and moved my finger across the beam, it was not even 1 second just a swipe across the beam and bam I felt my finger had been burnt so I quickly turned the laser off, it hurt a lot and felt like it was burnt but there was also a stinging pain, after waiting a bit it looks like part of my finger was instantly Scarred and the other part there was blood at the top of my skin. This was for a very short amount of time and the laser still done some damage, so please ware long sleeves and shorts, and DO NOT point a laser at other people or living animals. Eventual I will get a pig/cows eye and I will see the damage a laser can do to it.

Blood
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Scar?
23vm5pc.jpg


Area where finger was burnt.
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IsaacT

IsaacT

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Many times have I burned myself. Although usually I just dare stupid friends to put their finger in the beam.
 
ryansoh3

ryansoh3

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How focused was the laser? Parallel or pinpointed to your finger?
 
COMMANDR

COMMANDR

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Wow!!!! that looks painful. Be careful and heal fast. Thanks for taking one for the team. :>)
This should serve as a wake-up call to all who don't know or have be come complacent to the
dangers of high power beams. Even secondary reflections carry almost all the power of the primary beam.
 
Pi R Squared

Pi R Squared

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While your conducting experiments can you also hit one finger with a hammer and report back to us the results, please also slam one in a car door. :crackup:
 
KRNAZNBOY

KRNAZNBOY

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Ooof! I did that once and IT HURT SO BAD so I vowed to always be careful no matter what and so far no more burns!

Dam them lasers are powerful. Still wonder why so little people are actually involved in this hobby

(99% on this forum are kids who want to "burn shit" :p )

The photons! They BURN!
 
deltawars

deltawars

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Pi R Squared said:
While your conducting experiments can you also hit one finger with a hammer and report back to us the results, please also slam one in a car door. :crackup:
Click to expand...
That reminded me of when I was 5, and I slammed my finger in the door because my mum said not to... I soon found out why. ROLF

KRNAZNBOY said:
Ooof! I did that once and IT HURT SO BAD so I vowed to always be careful no matter what and so far no more burns!

Dam them lasers are powerful. Still wonder why so little people are actually involved in this hobby

(99% on this forum are kids who want to "burn shit" :p )

The photons! They BURN!
Click to expand...

Yes I will defiantly be careful as I know what it fells like to be burnt for a short amount of time, them photons be hatin!

I think the reason people are not involved in lasers is because the price, even for your first build you would need to spend at least £25/$42 just on safety goggles, then there is the charger, batteries, then the laser, plus some people don't even have a soldering iron, solder, heat shrink, or even cable. And like you said most people are just kids with $10 who want a laser that can cut wood, pop balloons, burn matches, set people they don't like on fire... maybe its a good thing there not so cheap lol.
 
IsaacT

IsaacT

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deltawars said:
... maybe its a good thing there not so cheap lol.
Click to expand...

THIS. When I joined I was 20 yrs old and hadn't much money. Which sucked, becuase I also had no tools lol. It took me a few years to get my collection humming along.
 
deltawars

deltawars

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Actually after doing some thinking I take that back, it doesn't really matter because kids don't have credit cards or paypal so they cant buy them unless there parents buy them, in that case it would be there parents fault.
I do want to sell a laser kit for £25/$42(without postage) which would include a 660nm 250-300mw laser, tested safety goggles, a good charger that doesn't explode and works, and some protected batteries that also work, I done the research and it can be done plus I would be making a little profit but I just want to get a LPM before I do any of that.
 
Benm

Benm

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Just goes to show you have to be a bit cautios with higher powered lasers, even when it's not your eyes that are at risk.

You can get a burn when messing around with things, but also when trying to ajust beam combiners and such. In those cases chances are you will get your fingers in the optical path at one point or another, and i suggest running your lasers at low power when adjusting optics and such to prevent burns like these.
 
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