position of focal plane 中文意思是什麼
position of focal plane
解釋
焦面位置-
From the fresnel diffraction equation, we calculated the intensity distribution of the fhb in free space, and found that there is an interested propagation property of the fhb before the focal plane. that is, with the increase of the propagation distance z, the dark spot size ( dss ) of the fhb is first increased, and then decreased, the dss has the maximum value at the position of z = - f / 2
發現在焦平面之前有一個非常有趣的傳播性質,即隨著傳播距離z的增加,這一聚焦中空光束的暗斑尺寸( dss )先從另變大然後再變小,最大的暗斑尺寸的位置在z = f / 2處。 -
At the position of the zeroth order, all wavelengths from each slit add constructively ; this produces the bright white light you see as the zeroth order at the center of the back focal plane of the objective ( figures 3 and 4 )
在零級位,從柵格標本的各個窄縫中發出的所有波長會產生相加的干涉,在物鏡的后焦面中心會看到明亮的白色像。
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