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03-14-2015, 07:17 AM #1
 Class 3B Laser Join Date: Jan 2014 Location: Near Mosul, Iraq Posts: 4,279 Rep Power: 2132
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Anyone using IR lasers here with CCD camera?

Anyone here using IR laser pointers here with a CCD camera to record the beam?

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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

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Last edited by Alaskan; 03-14-2015 at 07:21 AM. Reason: I started to say happy Pi day, but then saw it was in the wrong section and changed the post

03-14-2015, 07:21 AM #2
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Hap
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Re: Anyone using IR lasers here with CCD camera?

Isn't it 11:20PM on March 13th when you posted this since you are in Alaska(1 hour behind me)

Anyway, Happy Pi Day!

-Alex
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03-14-2015, 07:23 AM #3
 Class 3B Laser Join Date: Jan 2014 Location: Near Mosul, Iraq Posts: 4,279 Rep Power: 2132
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Re: Anyone using IR lasers here with CCD camera?

Yea, but most of you in the USA are in Pi day already. I saw I put the happy Pi day in the wrong section and decided to change the post in a hurry to avoid flack
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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

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03-14-2015, 09:20 AM #4
 Class 3B Laser Join Date: May 2013 Location: Snohomish County Washington, US Posts: 3,800 Rep Power: 1086
Pi R Squared
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Re: Anyone using IR lasers here with CCD camera?

Today is a very special Pi day that only happens once in a century, 3/14/15 so be sure and do something special at 9:26:53 AM and 9:26:53 PM. Pi is 3.141592653 and Pi = C/D and always remember Pi are not round but Pi R Squared.

Alan
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03-14-2015, 08:07 PM #5
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paul1598419
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Re: Anyone using IR lasers here with CCD camera?

In answer to your question, I have been using a CMOS camera to focus infrared lasers for about 18 months. Not so much to see the beam, but for focusing purposes it works fine. I have tried to see the beam, but it is not as easy as the visible light being captured with a CCD camera or a CMOS camera. I suspect, but don't know for sure, that one could see the beam more readily if a fog or smoke device were used. I am not aware of any CCD pick ups that are sensitive to IR. That doesn't mean that they don't exist, but mine is CMOS.
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03-14-2015, 10:53 PM #6
 Class 3B Laser Join Date: Jan 2014 Location: Near Mosul, Iraq Posts: 4,279 Rep Power: 2132
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Re: Anyone using IR lasers here with CCD camera?

Happy pi...

I'd like to find a camera sensitive enough to "see" the beam at near IR, so far i don't know what can do so.

03-14-2015, 11:23 PM #7
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joeyss
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Re: Anyone using IR lasers here with CCD camera?

I have a certain Samsung 720 p video camera that picks up IR as an amazing bright light. I believe that it is called a samsung memory recorder. It even auto focuses IR at 980nm and my 150mw ish laser comes up as bright as like a 50mw+ with ev set to zero. If you jack it up in that mode the IR is really bright. It seems to remove the filter in darkness mode. Ir 808nm coms up white and 980nm is blueish white.

You can probably get them used and when you set it to darkness with the EV all the way up it makes for a great nv device. I got mine like 4 years ago so i bet you an find them used.
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3.107 watt 445nm zero laser
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03-15-2015, 05:59 AM #8
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Re: Anyone using IR lasers here with CCD camera?

Anyone have any pictures of this yet?

03-15-2015, 06:33 AM #9
 Class 3B Laser Join Date: Aug 2013 Location: MI, US Posts: 2,652 Rep Power: 265
The Lightning Stalker
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Re: Anyone using IR lasers here with CCD camera?

I have a little 320x480 webcam that has the
IR filter removed. I was using it last
night to see if a pair if eBay safety
glasses lets through IR, and sure enough
they do. Very dangerous

03-15-2015, 08:58 AM #10
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joeyss
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Re: Anyone using IR lasers here with CCD camera?

Quote:
 Originally Posted by 10fenny Anyone have any pictures of this yet?
see my posts on the review thread for a 980nm laser.
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Chrome 12x 405nm pen @ 475mw by Ra_pierce
~30mw newish 532nm Pen
~100mw IQS 532nm Pen
50mw 660nm DX pen
"5mw" overspec IQS Blu-ray does around 50mw
Spartan 589nm 50mw likely higher no lpm to test but skin feels warm.
3.107 watt 445nm zero laser
473nm labby peak at 34 mw
808nm over a watt from a 400mw green that came loose and lost the crystal set
980nm with weak cyan line focousable

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