Old 01-14-2012, 04:15 AM #1
Hiemal's Avatar
Class 3R Laser
 
Join Date: Dec 2011
Location: Houston, TX
Posts: 1,449
Rep Power: 138848
Hiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond repute
Hiemal Hiemal is offline
Class 3R Laser
Hiemal's Avatar
 
Join Date: Dec 2011
Location: Houston, TX
Posts: 1,449
Rep Power: 138848
Hiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond reputeHiemal has a reputation beyond repute
Default Lasers, beams and colors...

Somewhat pointless thread?

I know Rayleigh scattering causes certain colors of lasers to have their beams visible...I know green, and pretty much anything below it their beams are visible.

Are red 650 nm and red 635 nm beams visible at all?

And I mean without fog or smoke...


Hiemal is offline   Reply With Quote


















Old 01-14-2012, 04:23 AM #2
Sigurthr's Avatar
Class 3B Laser
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 219430
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Sigurthr Sigurthr is offline
Class 3B Laser
Sigurthr's Avatar
 
Join Date: Dec 2011
Location: Michigan's U.P.
Posts: 4,382
Rep Power: 219430
Sigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond reputeSigurthr has a reputation beyond repute
Default Re: Lasers, beams and colors...

Only if the angle of observation is very acute from the target (dangerous). Though I haven't tested obscene powers yet.
__________________
Amateur Multispectral Photographer - [X-Ray, UV, Vis, IR]
Amateur Electrical Engineer
Autodidact
Tesla Coil Expert
Sigurthr is offline   Reply With Quote
Old 01-14-2012, 05:06 AM #3
Ablaze's Avatar
Class 2 Laser
 
Join Date: Oct 2011
Location: USA
Posts: 468
Rep Power: 23
Ablaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant future
Ablaze Ablaze is offline
Class 2 Laser
Ablaze's Avatar
 
Join Date: Oct 2011
Location: USA
Posts: 468
Rep Power: 23
Ablaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant futureAblaze has a brilliant future
Default Re: Lasers, beams and colors...

If the air is dusty enough even a 5mw red laser will have a visible beam, and a bright enough laser will have a visible beam no matter what the wavelength, just due to reflections off of dust (or smog).
__________________
If your feet smell and your nose runs then you're probably put together upside down.
Quote:
Originally Posted by Sigurthr View Post
(pun intended and quite cheesy)
Quote:
Originally Posted by ARGLaser View Post
Thats a bad joke.
Ablaze is offline   Reply With Quote
Reply





Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



























Privacy Policy | Advertising Disclaimer | Terms of Use


 


All times are GMT. The time now is 08:45 PM.


Powered by: vBulletin
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Search Engine Friendly URLs by vBSEO
Privacy Policy | Advertising Disclaimer | Terms of Use
Copyright (C) 2017 Laser Pointer Forums, LLC