Aperture radius: the radius of the synthetic aperture around the brightest pixel (the approximate center of each detection).
孔半径：在最亮的像素附近的范围(自动检测的目标近似中心)。
This formula is not limited by the aperture radius and the distance from the screen and can be used as a theory of near field optics.
推导了圆孔衍射公式，该公式不受孔径大小和到屏距离的限制，可以作为近场光学的理论。
A general diffraction formula for circular apertures is derived. This formula is not limited by the aperture radius and the distance from the screen and can be used as a theory of near field optics.
推导了圆孔衍射公式，该公式不受孔径大小和到屏距离的限制，可以作为近场光学的理论。
Two methods and devices which are changeable aperture and movable aperture for measuring the mode-field radius of single-mode optical fibers are presented.
介绍两种快速测量单模光纤模场半径的方法及其测量装置——可变孔径法和移动圆孔法；
The results illustrate that sensitivity of Z-scan measurements may be enhanced by modulating radius of aperture.
这说明，在Z扫描测量时可以通过调节小孔的孔径提高其灵敏度。
The results illustrate that sensitivity of Z-scan measurements may be enhanced by modulating radius of aperture.
这说明，在Z扫描测量时可以通过调节小孔的孔径提高其灵敏度。
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