leklee89 |
2007-04-05 11:52 |
如圖 在其設(shè)置框里: Front length=L(上圖) =:(8F*Q back length=0 ,D-VC{lj Axis tilt=θ kWL\JDZ`. lateral focal shift=出口面的孔徑a(the radius of the exit aperture LQSno)OZ hM2^[8 焦距F=a(1+sinθ) }et^'BkA( F9]j{'# 都是機(jī)械認(rèn)識(shí) ,,,想多一點(diǎn)感性的理解! lateral focal shift=出口面的孔徑a 到底指的是哪一部分呢?
xz YvD{> Gnmj-'x 根據(jù) 焦距F=a(1+sinθ) xKz^J
SF V ^=o@I 45=10(1+sin30) 顯然不對(duì)??? 9PEjV$0E2 $~4ZuV% {{M?+]p,^ =
wNul" 高人來(lái)啊
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