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kushy04
Fusion Laser
Joined: 10 Oct 2005
Posts: 355
Picture(s): 1
Location: Clarks Summit, PA
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 Posted: 10/10/05, 12:03 PM Post subject: Doe this h |
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| I am currently in the process of ordering a 105mW and I was wodnering... is it bad for the laser to shine it into a mirror so that the beam reflects off the mirror and back right into the barrel? |
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Athoul
Wicked Lasers God
Joined: 13 Sep 2005
Posts: 7547
Location: Canada
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| Posted: 10/10/05, 3:02 PM Post subject: |
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Yes this would cause heat build up within the laser and could damage the crystals. Also it could damage the pump diode due to over heating.
cheers, |
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feniks
Modified 10mW Greenie
Joined: 06 Oct 2005
Posts: 11
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| Posted: 10/10/05, 3:46 PM Post subject: |
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| not sure why you would want to do this... |
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kushy04
Fusion Laser
Joined: 10 Oct 2005
Posts: 355
Picture(s): 1
Location: Clarks Summit, PA
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| Posted: 10/10/05, 5:43 PM Post subject: |
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| well, I did this with my 5mW laser... i figured the particles in the path of the beam are 'lighting up' creating the beam, maybe if I reflect it straight back the beam would be twice as bright... but i didn't notice a idfference. Also, my 5mW is now a 0.3mW i swear (exxagerating, but very very low, less than 5mW, cheap $3 red pointer is brighter and those are rated <1mW) |
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nero_design
Wicked Lasers God
Joined: 02 Sep 2005
Posts: 1463
Picture(s): 98
Movie(s): 1
Location: Australia
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| Posted: 10/10/05, 9:14 PM Post subject: |
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YES! If you want to see what happens with reflected laser light, there's a short video on the Wicked webpage that I made a couple of weeks ago: (see second half of the video)
http://www.wickedlasers.com/videos/Laser3.mov
As you can see, reflected laser light from a mirrored surface will be the same as shining the laser directly at the subject. If you have to reflect a laser back towards itself, only use <1mw-<10mW in laser strength output for such purposes.
_________________
Regards,
Marco Nero
* Laser Gallery: http://www.pbase.com/nero_design/pro1wickedlasers
* Always use appropriate laser-safe eyewear when using higher powered lasers. |
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Nexus
Wicked Lasers Master
Joined: 02 Jun 2005
Posts: 756
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| Posted: 10/11/05, 4:49 AM Post subject: |
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| That signature of yours, lol |
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