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/sci/ - Science & Math

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File: 160 KB, 690x400, cool-green-laser.jpg [View same] [iqdb] [saucenao] [google]
4973024 No.4973024 [Reply] [Original]

Hey /sci/, I got a 50mw green laser pointer today, that's what the safety label on it says anyways, however, I seem to be unable to burn anything other than my own retinas with it, since it's not focusable. I have microscope lens lying around, how would I manage to burn through something with it?

>> No.4973025

>>4973024
http://www.youtube.com/watch?v=Sf3M-_RUSCM

there you go

>> No.4973034

>>4973025
I didn't ask for this. I'm pretty sure the laser is 50mw, the problem is it has no focusing lens. I was asking if I could focus it, not whether I should pop it open, solder it, and fucking amplify it, I want to pop balloons, not take down an aircraft.

>> No.4973048

it will burn,
get a black trashbag
wrap one layer around the front of the laser and watch it slowly tear a small hole in it.

FYI you got the wrong wavelength (color)
greens need to be much more powerful to burn, because of the relationship of energy and frequency

>> No.4973061

Cont.
green ones are the brightest per mW
blue ones are inbetween these two
Purple ones will burn the best per mW

the best and cheapest ones are from china
http://lazerer.com/Violet%20_Laser_Pointer?product_id=91

anymore questions, ask away

>> No.4973071

1W or bust, op

>> No.4973082

1W lasers could start a fucking campfire.

>> No.4973094

A 1W laser is a fucking weapon, you could blind someone instantly with it.

>> No.4973133

>>4973094
SOLD! WHERE CAN I BUY ONE.

>> No.4973146
File: 105 KB, 550x368, 1341675461270.jpg [View same] [iqdb] [saucenao] [google]
4973146

>>4973133
The black market for lasers

>> No.4973165

>>4973146
dragonlasers.com is a good place

Pic related. My 1W Blue that i fucking love. Friends shit their pants when they saw it, even during the day. Ive even cut automotive belt rubber with it at work (slow, but cool nonetheless).

>> No.4973166
File: 1.45 MB, 2592x1944, IMG_20120815_215513[1].jpg [View same] [iqdb] [saucenao] [google]
4973166

>>4973165
sorry about the upload

>> No.4973168

>>4973166
if you want an outdoor beam pic i can do that as well. Its hella useful for backyard astronomy and pointing things out to the kiddos. I can even mount it with some rings on my AR-15.

>> No.4973192

http://www.wickedlasers.com/arctic

>> No.4973217

>>4973192
Dont buy it, Its a piece of shit and you would be lucky to get one at 75% of that wattage. If you are seriius, google survival lasers. But be sure to use adequate eye protection when burning or using it indoors.

>> No.4973282

Why settle for 1W?

http://www.youtube.com/watch?v=66aVXk5jSn8