beam angle

The angle between two directions for which the intensity is 50% of the maximum intensity as measured in a plane through the beam center line.

See also http://www.controlbooth.com/forums/g...eld-angle.html.

Contributors: derekleffew	Created by DaveySimps, February 5th, 2009 at 01:48 AM Last edited by derekleffew, April 12th, 2009 at 04:33 AM 0 Comments , 344 Views
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