AN ANALYTIC, GRADIENT INDEX SCHEMATIC LENS AND EYE FOR THE RAT WHICH PREDICTS ABERRATIONS FOR FINITE PUPILS
AN ANALYTIC, GRADIENT INDEX SCHEMATIC LENS AND EYE FOR THE RAT WHICH PREDICTS ABERRATIONS FOR FINITE PUPILS
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DOI：
10.1016/0042-6989(81)90016-x
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发表时间：
1981-01-01
期刊：
影响因子：
1.8
通讯作者：
HUGHES, A
中科院分区：
文献类型：
--
作者：
CAMPBELL, MCW;HUGHES, A
具有均匀等效透镜的原理图眼睛不适用于非近轴光学，现有版本已无效地适用于非近轴特性。根据大鼠眼晶状体的折射率分布和解剖测量结果，分析推导出一种新的模型眼。根据实验结果，预测了球差、彗差、近轴特性和折射态随瞳孔大小的变化。角膜可以抵消晶状体的球差和线差，从而降低整体像差，使眼睛具有良好的光学质量。节点是不变的对象偏心在某种程度上有利于物种的视觉轴从光轴移位。该模型的潜力在于将其推广到离轴光学的研究中。
Schematic eyes with a homogeneous equivalent lens are inadequate for non-paraxial optics and available versions have been invalidly fitted to non-paraxial properties. A new model eye is analytically derived from the refractive index profile of the crystalline lens and anatomical measurements of the rat eye. It predicts spherical aberration, coma, paraxial properties and the variation of refractive state with pupil size in accord with experimental measurements. The cornea counteracts the spherical aberration and linear coma of the lens so that overall aberration is reduced and the eye is of good optical quality. The nodal point is invariant with object eccentricity in a manner advantageous to a species whose visual axis is displaced from the optic axis. The potential of the model lies in its extension to a study of such off-axis optics.