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09-12-2015, 07:46 PM #1
 Class 3B Laser Join Date: Jan 2014 Location: Near Mosul, Iraq Posts: 4,279 Rep Power: 2124
Class 3B Laser

Join Date: Jan 2014
Location: Near Mosul, Iraq
Posts: 4,279
Rep Power: 2124
LeHap might like this one :p

__________________

http://www.lexellaser.com/techinfo_wavelengths.htm

Laser Safety:
http://www.laserpointersafety.com/index.html

Angular Size Calculator; use with diode angle of radiation specification to calculate the needed lens diameter for a given FL:
http://www.1728.org/angsize.htm

Divergence to spot size calculator: http://tinyurl.com/spotsize - 1 mRad is about .057 degrees which from the earth would expand to be ~10% the diameters of the moon or sun at their distances.

Divergence Calculator: http://www.pseudonomen.com/lasers/ca...alculator.html - Measure your lasers beamwidth at 1 foot & then at a further distance to calculate the divergence.

Online calculator to determine spot intensity at different mRad's & powers @ distances: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: http://www.ophiropt.com/laser-measur...ity-calculator

How to build a laser beam expander to reduce divergence: http://tinyurl.com/BeamExpander

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

YAG Power Calculator, i.e. convert ns @ mJ to peak power in watts http://tinyurl.com/YAG-Pulse

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

_______

Last edited by Alaskan; 09-13-2015 at 01:45 AM.

09-12-2015, 08:08 PM #2
 Super Moderator Join Date: Sep 2013 Location: Central California Coast Posts: 6,174 Rep Power: 1788
Hap
Super Moderator

Join Date: Sep 2013
Location: Central California Coast
Posts: 6,174
Rep Power: 1788
Re: LeHap might like this one :p

Not tha penguin!!!!!!!!!!!

-Alex
__________________
My Lasers:
650nm: laserbtb LP650-5 (peak 15mW)
635nm: Laserglow Libra (peak 4mW)
593.5nm: Laserglow Rigel-2 (peak 1mW)
532nm: Laserglow Anser (peak 4mW)

"Open your eyes, look within. Are you satisfied with the life you're living?" -Bob Marley
“The universe is a pretty big place. If it's just us, seems like an awful waste of space.” -Carl Sagan
You are important: Pale Blue Dot

09-12-2015, 08:12 PM #3
 Class 3B Laser Join Date: Jan 2014 Location: Near Mosul, Iraq Posts: 4,279 Rep Power: 2124
Class 3B Laser

Join Date: Jan 2014
Location: Near Mosul, Iraq
Posts: 4,279
Rep Power: 2124
Re: LeHap might like this one :p

That bird sounded kind of frustrated, sounded like either a loud sigh or it swore in penguin language!
__________________

http://www.lexellaser.com/techinfo_wavelengths.htm

Laser Safety:
http://www.laserpointersafety.com/index.html

Angular Size Calculator; use with diode angle of radiation specification to calculate the needed lens diameter for a given FL:
http://www.1728.org/angsize.htm

Divergence to spot size calculator: http://tinyurl.com/spotsize - 1 mRad is about .057 degrees which from the earth would expand to be ~10% the diameters of the moon or sun at their distances.

Divergence Calculator: http://www.pseudonomen.com/lasers/ca...alculator.html - Measure your lasers beamwidth at 1 foot & then at a further distance to calculate the divergence.

Online calculator to determine spot intensity at different mRad's & powers @ distances: http://tinyurl.com/divergence-calculator

Laser Power Density Calculator: http://www.ophiropt.com/laser-measur...ity-calculator

How to build a laser beam expander to reduce divergence: http://tinyurl.com/BeamExpander

RHD's Relative Perceived Brightness Calculator. Compare brightness @nm: http://lsrtools.1apps.com/relativebrightness

YAG Power Calculator, i.e. convert ns @ mJ to peak power in watts http://tinyurl.com/YAG-Pulse

The forum costs more to run than donations received, if you wish to help click this link: http://laserpointerforums.com/donations.htm

_______

09-12-2015, 08:19 PM #4
 Class 3R Laser Join Date: Apr 2015 Location: Fall river MA Posts: 1,433 Rep Power: 1255
GSS
Class 3R Laser

Join Date: Apr 2015
Location: Fall river MA
Posts: 1,433
Rep Power: 1255
Re: LeHap might like this one :p

Quote:
 Originally Posted by Alaskan That bird sounded kind of frustrated, sounded like either a loud sigh or it swore in penguin language!
lol I did think he said ....t in penguin language haha!!!

09-12-2015, 09:11 PM #5
 Super Moderator Join Date: Sep 2013 Location: Central California Coast Posts: 6,174 Rep Power: 1788
Hap
Super Moderator

Join Date: Sep 2013
Location: Central California Coast
Posts: 6,174
Rep Power: 1788
Re: LeHap might like this one :p

-Alex

09-12-2015, 09:48 PM #6
 Class 2M Laser Join Date: Dec 2014 Location: California Posts: 574 Rep Power: 127
joeybab3
Class 2M Laser

Join Date: Dec 2014
Location: California
Posts: 574
Rep Power: 127
Re: LeHap might like this one :p

Was that fall sound fake?

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