The results are helpful to the research of the focus of partially coherent annular beam.
这些结果对研究部分相干环形光束的聚焦性质是有帮助的。
The annular aperture of typical mirror lenses results in out-of-focus images with a pronounced 'bright ring' effect.
典型反射镜头的环状光圈导致失焦影像呈现明显的“亮环”效应。
The annular aperture of typical mirror lenses results in out-of-focus images with a pronounced 'bright ring' effect.
典型反射镜头的环状光圈导致失焦影像呈现明显的“亮环”效应。
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