Old 11-19-2016, 09:28 AM #17
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Default Re: 2.8 watts of 520

Much brighter, that is for sure. I was hoping I could see the crossed pattern but I don't see it. Thank you!


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Newbie advice: Please take the time to first make an introduction in the Welcome section before posting questions.


Divergence to spot size calc: - 1 mRad is about .057 degrees which expands to be very roughly ~10% the diameter of the moon or sun at their distances.

Divergence Calculator: pseudonomen137's JScript mRad Calculator - Measure your lasers beam dia. at 1 foot & then 20'.

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

Laser Power Density Calculator: Laser Power Density Calculator - Ophir

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University YAG Project The Professor's Homebuilt Lasers Site - YAG Lasers

YAG Power Calc. Laser Peak Power Calculator - Ophir

Angular Size Calculator; use with diode angle of radiation spec. for lens dia. at FL: Angular Size Calculator

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Old 11-19-2016, 05:11 PM #18
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Default Re: 2.8 watts of 520

Quote:
Originally Posted by Alaskan View Post
Much brighter, that is for sure. I was hoping I could see the crossed pattern but I don't see it. Thank you!
Your welcome!! She's got a beautiful beam!
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