Re: IR Flare Magnitude

From: Brooke Clarke (brooke@pacific.net)
Date: Sat Apr 03 2010 - 14:42:37 UTC

  • Next message: Ralph McConahy: "Re: IR Flare Magnitude"

    Hi:
    
    Usually when speaking about magnitude or brightness it's assumed to be 
    measured in the eye's wavelength range of 400 ot 700 nm and with a 
    weighting that matches the eye's spectral response.  So when the subject 
    under discussion includes the IR it's not clear to me how to make the 
    measurement.  One night I was playing with night vision equipment and 
    there was an extremely bright flash that bounced off my house.  It was 
    as if a flash bulb had gone off 10 feet away.  I'm sure the power was in 
    the IR, not visible range.  So what does IR Flare Magnitude really mean?
    http://www.prc68.com/I/Mag.shtml
    
    -- 
    Have Fun,
    
    Brooke Clarke
    http://www.PRC68.com
    
    
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