It is the distance between the lens diaphragm and the image plane.
即是镜头光圈与影像平面之间的距离。
It is the plane through the center of projection parallel to the image plane.
它是过射影中心且平行于象平面的平面。
This is a constant-amplitude wave which is essentially the same on the conjugate image plane.
这是一个振幅恒定的波，在共轭的象平面上也是如此。
This is a constant-amplitude wave which is essentially the same on the conjugate image plane.
这是一个振幅恒定的波，在共轭的象平面上也是如此。
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