Wavelength adjustment using an eye model from aberrometry data
Wavelength adjustment using an eye model from aberrometry data
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DOI：
10.1364/josaa.27.001561
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发表时间：
2010-07-01
影响因子：
1.9
通讯作者：
Thibos, Larry
中科院分区：
文献类型：
--
作者：
Nam, Jayoung;Rubinstein, Jacob;Thibos, Larry
我们开发了一种方法，使用眼睛模型将在一个波长中获得的像差测量数据转换为在另一个波长中的相应数据。使用像差测量数据的单个图来构建自由形式的单表面眼睛模型。一个通用的算法的表面建设的描述和实施真实的像差测量数据。我们的方法可以处理不同的共轭距离的测量平面的像差仪，也可以管理的主光线棱镜，可能存在。该算法在人造塑料眼的帮助下得到了验证。通过Zernike分析比较了不同波长的波前，不仅对低阶像差进行了分析，而且对高阶像差也进行了分析。结果表明，Zernike像差系数随波长的变化是不均匀的。离焦项对波长变化的影响最大，这与以前的文献是一致的。我们的方法相比，两个近似半解析算法。从多表面眼睛模型的波长调整与我们的方法进行了对比。我们证明了解析的波长调整的传统方法是基于傍轴分析。此外，还提出了在某些情况下利用反投影法求主光线的方法，并讨论了棱镜的不同含义。(C)2010年美国光学学会
We developed a method to convert aberrometry data obtained in one wavelength to the corresponding data in another wavelength using an eye model. A single map of aberrometry data is used to construct a free-form one-surface eye model. A general algorithm for the surface construction is described and implemented for real aberrometry data. Our method can handle varying conjugate distances of the measurement plane of the aberrometer and can also manage the chief ray prism that may be present. The algorithm is validated with the aid of an artificial plastic eye. The wavefronts in different wavelengths are compared through the Zernike analysis not only for lower-order aberrations, but also for higher-order aberrations. The results show that the changes of the Zernike aberration coefficients due to wavelengths are non-uniform. The defocus term has the highest effect from wavelength changes, which is consistent with the previous literature. Our method is compared with two approximate semi-analytical algorithms. The wavelength adjustments from a multi-surface eye model are contrasted with our method. We prove analytically that the conventional method of wavelength adjustment is based on paraxial analysis. In addition, we provide a method of finding the chief ray using back-projection in some cases and discuss different meanings of prism. (C) 2010 Optical Society of America