focal radius 中文意思是什麼
focal radius
解釋
焦半徑-
The influence of changing design parameters on diffractive microlens is investigated. the effects of changing design focal length and microlens material refractive index on diffractive efficiency and airy diffraction disc radius are presented. the numerical results are discussed by qualitative analysis
首先研究了設計參數變化對衍射微透鏡的影響，給出了設計焦距和透鏡材料折射率變化對衍射微透鏡衍射效率、愛里斑半徑等的影響，並對分析結果作了定性討論。 -
The results of computer simulation show that both the radius of disk and the depth of focal length decrease as increasing incidence wavelength, meanwhile, the intensity of disk is enhanced
數值計算了圓形透鏡的色散，結果表明：焦斑的半徑和焦深隨入射波長的變大而減小，光斑的強度隨入射波長的變大而增強。 -
The results show that radius and position of focal beam waist, focal angle and focal depth describe focal beam properties. they are determined by waist and rayleigh length of beam before focusing, the position and focal length of focus mirror
聚焦光束束腰位置和半徑、聚焦角、焦深、焦點偏移量以及焦點漂移量是描述光束聚焦特性的主要參數，它們由四個參量共同決定，分別為聚焦前光束的束腰半徑、瑞利長度和聚焦鏡的焦距以及聚焦鏡到光束束腰位置的距離。 -
In chapter 3, by using theoretic analysis the focusing properties of an ideal annular beam is demonstrated. the intensity distribution near the focal point is given explicitly to show the influence of the ratio of inner to outer radius
第三章，從理想的環形光束出發，先在理論上分析了環形聚焦光束在焦點附近的光強分佈情況和光束內外徑之比（占空比）對聚焦性質的影響。
分享友人