hopebox |
2014-10-29 20:30 |
[attachment=59416] Ixb=L(V The user manual says: K0-ypU*P UW N*j_9i Beam Size: The beam radius at the 1 over e^2 point in intensity in lens units. So it is defined as 半徑. HW3 }uP\c qkt0**\ For the "position", consider the picture attached.
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