Vohnsen Brian, Iglesias Ignacio, Artal Pablo
Laboratorio de Optica, Universidad de Murcia, Campus de Espinardo (Edificio C), 30071 Murcia, Spain.
J Opt Soc Am A Opt Image Sci Vis. 2005 Nov;22(11):2318-28. doi: 10.1364/josaa.22.002318.
The photoreceptors of the living human eye are known to exhibit waveguide-characteristic features. This is evidenced by the Stiles-Crawford effect observed for light incident near the pupil rim, and by the directional component of light reflected off the retina in the related optical Stiles-Crawford effect. We describe a model for the coupling of light to/from photoreceptors on the basis of waveguide theory that includes diffraction between the eye pupil and the photoreceptor apertures, and we show that valuable insight can be gained from a Gaussian approximation to the mode field. We apply this knowledge to a detailed study of the relationship between the Stiles-Crawford effect and its optical counterpart.
众所周知，活人眼的光感受器具有波导特性。在瞳孔边缘附近入射光时观察到的斯泰尔斯-克劳福德效应，以及相关光学斯泰尔斯-克劳福德效应中视网膜反射光的方向分量，都证明了这一点。我们基于波导理论描述了一种光与光感受器耦合的模型，该模型包括眼瞳孔和光感受器孔径之间的衍射，并且我们表明，通过对模式场的高斯近似可以获得有价值的见解。我们将这一知识应用于对斯泰尔斯-克劳福德效应与其光学对应效应之间关系的详细研究。
