Another important application of diffraction theory is the study of the far field divergence Angle of a collimated light beam.
衍射理论的另一个重要应用就是研究准直光束的远场发散角。
The theoretical expressions of the collimated beam of a DHCL are derived by transmission theory, and the numerical results are also given.
基于光线传输理论导出该结构柱透镜准直激光光束的基本公式并给出数值模拟的结果。
On the basis of theories of physics, geometrical optics and photometry, the optical properties of collimated light beam incident upon single fiber perpendicular to the fiber axis are studied.
结合物理学的基本原理和几何光学的基本规律以及光度学的基础理论等三方面，研究了单纤维在平行均匀光束垂轴入射时的光学性质。
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