讨论环形孔径高斯光束的远场光斑能量分布，并给出拟合表达式。
The energy distribution of far field spot for annular aperture Gaussian beam is discussed and the fitting expression is given.
讨论了环形孔径高斯光束的远场光斑能量分布，并给出了拟合表达式。
The far-field irradiance distribution of a Gaussian beam which is transmitted from telescope with certain center obscure is researched in this paper.
优化的拼接算法是环形子孔径扫描测量大口径非球面光学元件的关键问题。
Optimal stitching algorithm is extremely important for testing large-aperture aspherical optical elements by annular sub-aperture scanning technique.
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