| hopebox |
2014-10-29 20:30 |
[attachment=59416] 'B`#:tX^N
The user manual says: NF mc>0 -
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Beam Size: The beam radius at the 1 over e^2 point in intensity in lens units. So it is defined as 半径. f?^S bp
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For the "position", consider the picture attached.
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