Retinal image light distributions in a standard optical model of a diffraction-limited eye with round pupils are presented for several patterns of amplitude and phase modulation of the light admitted into the eye. Of special interest are circularly symmetrical configurations of truncated Bessel amplitude transmission functions, and of light subjected to axicon deviation. It is shown by several examples that this kind of beam shaping allows generation of retinal imagery, which can be more robust to defocus while maintaining minimal image degradation, and it points to situations of two separate zones simultaneously in sharp focus, several diopters apart.

中文翻译：

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具有Bessel和axicon瞳孔功能的已聚焦和散焦的视网膜图像。

提出了具有圆形瞳孔的衍射受限眼睛的标准光学模型中的视网膜图像光分布，用于入射到眼睛的光的振幅和相位调制的几种模式。特别令人感兴趣的是截断的贝塞尔振幅传递函数的圆形对称配置，以及受到轴锥偏移的光。通过几个示例可以看出，这种光束整形可以生成视网膜图像，从而在保持最小图像退化的同时对散焦更稳定，并且它指出了同时处于两个焦点区域的情况，这两个区域分别处于锐利聚焦状态，相隔几屈光度。