hopebox |
2014-10-29 20:30 |
[attachment=59416] ~19&s~ The user manual says: OM#eJ,MH<) 1n EW'F Beam Size: The beam radius at the 1 over e^2 point in intensity in lens units. So it is defined as 半径. 5hE mXZ% ZqJyuTPv For the "position", consider the picture attached.
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