Method for optimizing the correction of the eye's higher-order aberrations in the presence of decentrations
Method for optimizing the correction of the eye's higher-order aberrations in the presence of decentrations
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DOI：
10.1364/josaa.19.000126
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发表时间：
2002-01-01
影响因子：
1.9
通讯作者：
Williams, DR
中科院分区：
文献类型：
--
作者：
Guirao, A;Cox, IG;Williams, DR
使用校正元件来补偿光学系统中的高阶像差通常需要校正元件的精确对准。这并不总是可能的，如在眼睛上的接触透镜的情况下。本文提出了一种对每个像差项进行部分校正的方法，以使由高斯偏心（平移和旋转）产生的剩余波前像差的平均方差最小。解析表达式来估计分数的每一个像差项，应纠正一个给定的偏心量。为了说明这种方法的应用，三个例子被用来比较性能与全部和部分校正。部分校正更稳健，并且无论偏心量如何，总是产生一些益处。(C)2002年美国光学学会。
The use of a correcting element to compensate for higher-order aberrations in an optical system often requires accurate alignment of the correcting element. This is not always possible, as in the case of a contact lens on the eye. Ve propose a method consisting of partial correction of every aberration term to minimize the average variance of the residual wave-front aberration produced by Gaussian decentrations (translations and rotations). Analytical expressions to estimate the fraction of every aberration term that should be corrected for a given amount of decentration are derived. To demonstrate the application of this method, three examples are used to compare performance with total and with partial correction. The partial correction is more robust and always yields some benefit regardless of the amount of decentration. (C) 2002 Optical Society of America.