论文标题
麦克斯韦斑点质心的结构
The structure of the Maxwell spot centroid
论文作者
论文摘要
通过蓝色过滤器看到的深色元素麦克斯韦斑点是与集中在卵巢上的无蓝色圆锥形区域相吻合的，显示出结构的结构。当通过蓝绿色交换过滤器的绿色部分观察到卵巢镜的绿色部分时，在穿过蓝色部分的固定固定后，在浅绿色记忆的中心周围看到一个小的橙色圆盘，与无蓝色的无锥面积相对应。使用具有不同直径的人工瞳孔，我们表明，由于通过学生的fraunhofer衍射，这种小的圆形图案对应于通风盘。通常，对于直径为3毫米的瞳孔的眼睛，通风盘在通常的100-150微米Maxwell Centroid的中心显示大约8微米的直径。固定测试表明，通风模式辐照度的高耸的中央最大最大值对应于鸡外叶的无蓝色圆锥形区域的中心附近的眼睛的首选基因座。因此，人类视力中的固定位点似乎位于取消大型色散的动植物的唯一区域，从而优化了眼睛的敏锐度。
The dark entoptic Maxwell spot centroids seen through a blue filter, which coincide with the blue cone-free areas centered on the foveas, are shown to exhibit a structure. When observing through the green part of a blue-green exchange filter in a foveascope, after a fixation through the blue part, a small orange disc is seen around the centre of the pale green memory afterimage corresponding to the blue cone-free area. Using artificial pupils with different diameters, we show that this small circular pattern corresponds to the Airy disc due to the Fraunhofer diffraction through the pupil. Typically, for an eye with a 3 millimeter diameter pupil, the Airy disc exhibits a diameter of about 8 micrometers at the centre of the usual 100-150 micrometer Maxwell centroid. Fixation tests show that the towering central maximum of the Airy pattern irradiance corresponds to the preferred locus of the fixation of the eye near the centre of the blue cone-free area of the fovea. The locus of fixation in human vision thus appears to be located in the only area of the fovea where the large chromatic dispersion is cancelled, optimising the eye acuity.
